Check Mate CodeChef Solution

Problem -Check Mate CodeChef Solution

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This website is dedicated for CodeChef solution where we will publish right solution of all your favourite CodeChef problems along with detailed explanatory of different competitive programming concepts and languages.

Check Mate CodeChef Solution in C++17

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#include<bits/stdc++.h>
using namespace std;

#define ll				long long
#define pb				push_back
#define vll				vector<ll>
#define pll				pair<ll, ll>
#define F				first
#define S				second

void sol(){ 
    ll kx, ky, r1x, r1y, r2x, r2y;
    cin >> kx >> ky >> r1x >> r1y >> r2x >> r2y;

    bool checkmate = false;

    if(kx == 1){
        if(r1y != ky+1 && r1y != ky-1 && r2y != ky+1 && r2y != ky-1 && (r1x == 2 || r2x == 2) && r1y != r2y) checkmate = true;
    }
    if(kx == 8){
        if(r1y != ky+1 && r1y != ky-1 && r2y != ky+1 && r2y != ky-1 && (r1x == 7 || r2x == 7) && r1y != r2y) checkmate = true;
    }
    if(ky == 1){
        if(r1x != kx+1 && r1x != kx-1 && r2x != kx+1 && r2x != kx-1 && (r1y == 2 || r2y == 2) && r1x != r2x) checkmate = true;
    }
    if(ky == 8){
        if(r1x != kx+1 && r1x != kx-1 && r2x != kx+1 && r2x != kx-1 && (r1y == 7 || r2y == 7) && r1x != r2x) checkmate = true;
    }

    if(checkmate) cout << "YES\n";
    else cout << "NO\n";
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);

    ll tt;
    cin >> tt;
    while(tt--){
        sol();
    }

    return 0;
}

Check Mate CodeChef Solution in C++14

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#include <bits/stdc++.h>

#pragma optimization_level 3
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#pragma GCC optimize("Ofast")//Comment optimisations for interactive problems (use endl)
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization ("unroll-loops")

using namespace std;

struct PairHash {inline std::size_t operator()(const std::pair<int, int> &v) const { return v.first * 31 + v.second; }};

// speed
#define Code ios_base::sync_with_stdio(false);
#define By ios::sync_with_stdio(0);
#define Sumfi cout.tie(NULL);

// alias
using ll = long long;
using ld = long double;
using ull = unsigned long long;

// constants
const ld PI = 3.14159265358979323846;  /* pi */
const ll INF = 1e18;
const ld EPS = 1e-9;
const ll MAX_N = 202020;
const ll mod = 1e9 + 7;

// typedef
typedef pair<ll, ll> pll;
typedef vector<pll> vpll;
typedef array<ll,3> all3;
typedef array<ll,5> all5;
typedef vector<all3> vall3;
typedef vector<all5> vall5;
typedef vector<ld> vld;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<int> vi;
typedef deque<ll> dqll;
typedef deque<pll> dqpll;
typedef pair<string, string> pss;
typedef vector<pss> vpss;
typedef vector<string> vs;
typedef vector<vs> vvs;
typedef unordered_set<ll> usll;
typedef unordered_set<pll, PairHash> uspll;
typedef unordered_map<ll, ll> umll;
typedef unordered_map<pll, ll, PairHash> umpll;

// macros
#define rep(i,m,n) for(ll i=m;i<n;i++)
#define rrep(i,m,n) for(ll i=n;i>=m;i--)
#define all(a) begin(a), end(a)
#define rall(a) rbegin(a), rend(a)
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define INF(a) memset(a,0x3f3f3f3f3f3f3f3fLL,sizeof(a))
#define ASCEND(a) iota(all(a),0)
#define sz(x) ll((x).size())
#define BIT(a,i) (a & (1ll<<i))
#define BITSHIFT(a,i,n) (((a<<i) & ((1ll<<n) - 1)) | (a>>(n-i)))
#define pyes cout<<"YES\n";
#define pno cout<<"NO\n";
#define endl "\n"
#define pneg1 cout<<"-1\n";
#define ppossible cout<<"Possible\n";
#define pimpossible cout<<"Impossible\n";
#define TC(x) cout<<"Case #"<<x<<": ";
#define X first
#define Y second

// utility functions
template <typename T>
void print(T &&t)  { cout << t << "\n"; }
template<typename T>
void printv(vector<T>v){ll n=v.size();rep(i,0,n){cout<<v[i];if(i+1!=n)cout<<' ';}cout<<endl;}
template<typename T>
void printvln(vector<T>v){ll n=v.size();rep(i,0,n)cout<<v[i]<<endl;}
void fileIO(string in = "input.txt", string out = "output.txt") {freopen(in.c_str(),"r",stdin); freopen(out.c_str(),"w",stdout);}
void readf() {freopen("", "rt", stdin);}
template<typename T>
void readv(vector<T>& v){rep(i,0,sz(v)) cin>>v[i];}
template<typename T, typename U>
void readp(pair<T,U>& A) {cin>>A.first>>A.second;}
template<typename T, typename U>
void readvp(vector<pair<T,U>>& A) {rep(i,0,sz(A)) readp(A[i]); }
void readvall3(vall3& A) {rep(i,0,sz(A)) cin>>A[i][0]>>A[i][1]>>A[i][2];}
void readvall5(vall5& A) {rep(i,0,sz(A)) cin>>A[i][0]>>A[i][1]>>A[i][2]>>A[i][3]>>A[i][4];}
void readvvll(vvll& A) {rep(i,0,sz(A)) readv(A[i]);}

struct Combination {
    vll fac, inv;
    ll n, MOD;

    ll modpow(ll n, ll x, ll MOD = mod) { if(!x) return 1; ll res = modpow(n,x>>1,MOD); res = (res * res) % MOD; if(x&1) res = (res * n) % MOD; return res; }

    Combination(ll _n, ll MOD = mod): n(_n + 1), MOD(MOD) {
        inv = fac = vll(n,1);
        rep(i,1,n) fac[i] = fac[i-1] * i % MOD;
        inv[n - 1] = modpow(fac[n - 1], MOD - 2, MOD);
        rrep(i,1,n - 2) inv[i] = inv[i + 1] * (i + 1) % MOD;
    }

    ll fact(ll n) {return fac[n];}
    ll nCr(ll n, ll r) {
        if(n < r or n < 0 or r < 0) return 0;
        return fac[n] * inv[r] % MOD * inv[n-r] % MOD;
    }
};

struct Matrix {
    ll r,c;
    vvll matrix;
    Matrix(ll r, ll c, ll v = 0): r(r), c(c), matrix(vvll(r,vll(c,v))) {}

    Matrix operator*(const Matrix& B) const {
        Matrix res(r, B.c);
        rep(i,0,r) rep(j,0,B.c) rep(k,0,B.r) {
                    res.matrix[i][j] = (res.matrix[i][j] + matrix[i][k] * B.matrix[k][j] % mod) % mod;
                }
        return res;
    }

    Matrix copy() {
        Matrix copy(r,c);
        copy.matrix = matrix;
        return copy;
    }

    Matrix pow(ll n) {
        assert(r == c);
        Matrix res(r,r);
        Matrix now = copy();
        rep(i,0,r) res.matrix[i][i] = 1;
        while(n) {
            if(n & 1) res = res * now;
            now = now * now;
            n /= 2;
        }
        return res;
    }
};

// geometry data structures
template <typename T>
struct Point {
    T y,x;
    Point(T y, T x) : y(y), x(x) {}
    Point(pair<T,T> p) : y(p.first), x(p.second) {}
    Point() {}
    void input() {cin>>y>>x;}
    friend ostream& operator<<(ostream& os, const Point<T>& p) { os<<p.y<<' '<<p.x<<'\n'; return os;}
    Point<T> operator+(Point<T>& p) {return Point<T>(y + p.y, x + p.x);}
    Point<T> operator-(Point<T>& p) {return Point<T>(y - p.y, x - p.x);}
    Point<T> operator*(ll n) {return Point<T>(y*n,x*n); }
    Point<T> operator/(ll n) {return Point<T>(y/n,x/n); }
    bool operator<(const Point &other) const {if (x == other.x) return y < other.y;return x < other.x;}
    Point<T> rotate(Point<T> center, ld angle) {
        ld si = sin(angle * PI / 180.), co = cos(angle * PI / 180.);
        ld y = this->y - center.y;
        ld x = this->x - center.x;

        return Point<T>(y * co - x * si + center.y, y * si + x * co + center.x);
    }
    ld distance(Point<T> other) {
        T dy = abs(this->y - other.y);
        T dx = abs(this->x - other.x);
        return sqrt(dy * dy + dx * dx);
    }

    T norm() { return x * x + y * y; }
};

template<typename T>
struct Line {
    Point<T> A, B;
    Line(Point<T> A, Point<T> B) : A(A), B(B) {}
    Line() {}

    void input() {
        A = Point<T>();
        B = Point<T>();
        A.input();
        B.input();
    }

    T ccw(Point<T> &a, Point<T> &b, Point<T> &c) {
        T res = a.x * b.y + b.x * c.y + c.x * a.y;
        res -= (a.x * c.y + b.x * a.y + c.x * b.y);
        return res;
    }

    bool isIntersect(Line<T> o) {
        T p1p2 = ccw(A,B,o.A) * ccw(A,B,o.B);
        T p3p4 = ccw(o.A,o.B,A) * ccw(o.A,o.B,B);
        if (p1p2 == 0 && p3p4 == 0) {
            pair<T,T> p1(A.y, A.x), p2(B.y,B.x), p3(o.A.y, o.A.x), p4(o.B.y, o.B.x);
            if (p1 > p2) swap(p2, p1);
            if (p3 > p4) swap(p3, p4);
            return p3 <= p2 && p1 <= p4;
        }
        return p1p2 <= 0 && p3p4 <= 0;
    }

    pair<bool,Point<ld>> intersection(Line<T> o) {
        if(!this->intersection(o)) return {false, {}};
        ld det = 1. * (o.B.y-o.A.y)*(B.x-A.x) - 1.*(o.B.x-o.A.x)*(B.y-A.y);
        ld t = ((o.B.x-o.A.x)*(A.y-o.A.y) - (o.B.y-o.A.y)*(A.x-o.A.x)) / det;
        return {true, {A.y + 1. * t * (B.y - A.y), B.x + 1. * t * (B.x - A.x)}};
    }

    //@formula for : y = ax + b
    //@return {a,b};
    pair<ld, ld> formula() {
        T y1 = A.y, y2 = B.y;
        T x1 = A.x, x2 = B.x;
        if(y1 == y2) return {1e9, 0};
        if(x1 == x2) return {0, 1e9};
        ld a = 1. * (y2 - y1) / (x2 - x1);
        ld b = -x1 * a + y1;
        return {a, b};
    }
};

template<typename T>
struct Circle {
    Point<T> center;
    T radius;
    Circle(T y, T x, T radius) : center(Point<T>(y,x)), radius(radius) {}
    Circle(Point<T> center, T radius) : center(center), radius(radius) {}
    Circle() {}

    void input() {
        center = Point<T>();
        center.input();
        cin>>radius;
    }

    bool circumference(Point<T> p) {
        return (center.x - p.x) * (center.x - p.x) + (center.y - p.y) * (center.y - p.y) == radius * radius;
    }

    bool intersect(Circle<T> c) {
        T d = (center.x - c.center.x) * (center.x - c.center.x) + (center.y - c.center.y) * (center.y - c.center.y);
        return (radius - c.radius) * (radius - c.radius) <= d and d <= (radius + c.radius) * (radius + c.radius);
    }

    bool include(Circle<T> c) {
        T d = (center.x - c.center.x) * (center.x - c.center.x) + (center.y - c.center.y) * (center.y - c.center.y);
        return d <= radius * radius;
    }
};

ll __gcd(ll x, ll y) { return !y ? x : __gcd(y, x % y); }
all3 __exgcd(ll x, ll y) { if(!y) return {x,1,0}; auto [g,x1,y1] = __exgcd(y, x % y); return {g, y1, x1 - (x/y) * y1}; }
ll __lcm(ll x, ll y) { return x / __gcd(x,y) * y; }
ll modpow(ll n, ll x, ll MOD = mod) { n%=MOD; if(!x) return 1; ll res = modpow(n,x>>1,MOD); res = (res * res) % MOD; if(x&1) res = (res * n) % MOD; return res; }



bool solve(vpll A) {
    if(A[1].second != A[2].second) {
        if(abs(A[2].second - A[0].second) != 1 and abs(A[1].second - A[0].second) != 1) {
            if((A[1].first == 2 and A[0].first == 1) or (A[1].first == 7 and A[0].first == 8)) return true;
            if((A[2].first == 2 and A[0].first == 1) or (A[2].first == 7 and A[0].first == 8)) return true;
        }
    }
    if(A[1].first!= A[2].first) {
        if((A[1].second == 2 and A[0].second == 1) or (A[1].second == 7 and A[0].second == 8)) {
            if(abs(A[2].first - A[0].first) != 1 and abs(A[1].first - A[0].first) != 1) return true;
        }
        if((A[2].second == 2 and A[0].second == 1) or (A[2].second == 7 and A[0].second == 8)) {
            if(abs(A[2].first - A[0].first) != 1 and abs(A[1].first - A[0].first) != 1) return true;
        }
    }
    return false;
}

int main() {
    Code By Sumfi
    cout.precision(12);
    ll tc = 1;
    cin>>tc;
    rep(i,1,tc+1) {
        vpll A(3);
        readvp(A);
        if(solve(A)) pyes else pno
    }
    return 0;
}

Check Mate CodeChef Solution in PYTH 3

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# cook your dish here
from sys import stdin

t = int(stdin.readline().rstrip())
while t > 0:
    xk, yk = list(map(int, stdin.readline().strip().split(' ')))
    xr1, yr1 = list(map(int, stdin.readline().strip().split(' ')))
    xr2, yr2 = list(map(int, stdin.readline().strip().split(' ')))
    flag = None
    if xk != xr1  and xk != xr2 and yk != yr1 and yk != yr2:
        if (xk == 1 or xk == 8 or yk == 1 or yk == 8):
            if xk == 1:
                if (xr1 == 2 or xr2 == 2) and yr1 != yr2:
                    if abs(yk - yr1) > 1 and abs(yk- yr2) > 1:
                       flag = 1
            elif xk == 8:
                if (xr1 == 7 or xr2 == 7) and yr1 != yr2:
                    if abs(yk - yr1) > 1 and abs(yk - yr2) > 1:
                        flag = 1
            if yk == 1:
                if (yr1 == 2 or yr2 == 2) and xr1 != xr2:
                    if abs(xk-xr1) > 1 and abs(xk - xr2) > 1:
                        flag = 1
            elif yk == 8:
                if (yr1 == 7 or yr2 == 7) and xr1 != xr2:
                    if abs(xk-xr1) > 1 and abs(xk-xr2) > 1:
                        flag = 1
    else:
        flag = 0

    if flag: print("Yes")
    else: print("No")
    t -= 1

Check Mate CodeChef Solution in C

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#include <stdio.h>
int check(int kx,int ky,int bx,int by){
    if(kx==bx && ky==by+1){
        return 1;
    }
    else  if(kx==bx && ky==by-1){
        return 1;
    }
    else  if(kx==bx+1 && ky==by){
        return 1;
    }
    else  if(kx==bx-1 && ky==by){
        return 1;
    }
    else  if(kx==bx+1 && ky==by-1){
        return 1;
    }
    else  if(kx==bx-1 && ky==by+1){
        return 1;
    }
    else  if(kx==bx-1 && ky==by-1){
        return 1;
    }
    else  if(kx==bx+1 && ky==by+1){
        return 1;
    }
    return 0;
    
}

int main()
{
    int t;
    scanf("%d",&t);
    for (int i = 0; i < t; i++) {
        int kx,ky,b1x,b1y,b2x,b2y;
        scanf("%d %d",&kx,&ky);
        scanf("%d %d",&b1x,&b1y);
        scanf("%d %d",&b2x,&b2y);
        if(check(kx,ky,b1x,b1y)){
            printf("no\n");
            continue;
        }
        if(check(kx,ky,b2x,b2y)){
            printf("no\n");
            continue;
        }
        if(kx==1 && b1x==2){
            if(b1y!=b2y && check(kx,ky,1,b2y)==0){
                printf("yes\n");
                continue;
            }
        }
        if(kx==1 && b2x==2){
            if(b1y!=b2y && check(kx,ky,1,b1y)==0){
                printf("yes\n");
                continue;
            }
        }
         if(kx==8 && b1x==7){
            if(b1y!=b2y && check(kx,ky,8,b2y)==0){
                printf("yes\n");
                continue;
            }
        }
        if(kx==8 && b2x==7){
            if(b1y!=b2y && check(kx,ky,8,b1y)==0){
                printf("yes\n");
                continue;
            }
        }
        if(ky==1 && b1y==2){
            if(b1x!=b2x && check(kx,ky,b2x,1)==0){
                printf("yes\n");
                continue;
            }
        }
        if(ky==1 && b2y==2){
             if(b1x!=b2x && check(kx,ky,b1x,1)==0){
                printf("yes\n");
                continue;
            }
        }
         if(ky==8 && b1y==7){
            if(b1x!=b2x && check(kx,ky,b2x,8)==0){
                printf("yes\n");
                continue;
            }
        }
        if(ky==8 && b2y==7){
            if(b1x!=b2x && check(kx,ky,b1x,8)==0){
                printf("yes\n");
                continue;
            }
        }
        printf("no\n");
        
    }
    
}

Check Mate CodeChef Solution in JAVA

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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {
  public static void main(String[] args) throws Throwable {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st = new StringTokenizer(br.readLine());
    int T = Integer.parseInt(st.nextToken());
    for (int tc = 0; tc < T; ++tc) {
      st = new StringTokenizer(br.readLine());
      int xk = Integer.parseInt(st.nextToken());
      int yk = Integer.parseInt(st.nextToken());
      st = new StringTokenizer(br.readLine());
      int x1 = Integer.parseInt(st.nextToken());
      int y1 = Integer.parseInt(st.nextToken());
      st = new StringTokenizer(br.readLine());
      int x2 = Integer.parseInt(st.nextToken());
      int y2 = Integer.parseInt(st.nextToken());

      System.out.println(solve(xk, yk, x1, y1, x2, y2) ? "YES" : "NO");
    }
  }

  static boolean solve(int xk, int yk, int x1, int y1, int x2, int y2) {
    return ((y1 != y2 || (xk - x2) * (x1 - x2) > 0) && isCheckMate(xk, yk, xk, y1, x2, y2))
        || ((x1 != x2 || (yk - y2) * (y1 - y2) > 0) && isCheckMate(xk, yk, x1, yk, x2, y2))
        || ((y1 != y2 || (xk - x1) * (x2 - x1) > 0) && isCheckMate(xk, yk, x1, y1, xk, y2))
        || ((x1 != x2 || (yk - y1) * (y2 - y1) > 0) && isCheckMate(xk, yk, x1, y1, x2, yk));
  }

  static boolean isCheckMate(int xk, int yk, int x1, int y1, int x2, int y2) {
    for (int dx = -1; dx <= 1; ++dx) {
      for (int dy = -1; dy <= 1; ++dy) {
        int nextX = xk + dx;
        int nextY = yk + dy;
        if (nextX >= 1
            && nextX <= 8
            && nextY >= 1
            && nextY <= 8
            && !isAttacked(xk + dx, yk + dy, x1, y1)
            && !isAttacked(xk + dx, yk + dy, x2, y2)) {
          return false;
        }
      }
    }

    return true;
  }

  static boolean isAttacked(int xk, int yk, int x, int y) {
    return (xk != x || yk != y) && (xk == x || yk == y);
  }
}

Check Mate CodeChef Solution in PYPY 3

“ ”

import sys
input = sys.stdin.readline

def function(xk,yk,x1,y1,x2,y2):
    if (xk==1 or yk==1 or xk==8 or yk==8):
        if xk==1:
            if (x1==2 or x2==2) and y1!=y2:
                if abs(yk-y1)>1 and abs(yk-y2)>1:
                    return True
        elif xk==8:
            if (x1==7 or x2==7) and y1!=y2:
                if abs(yk-y1)>1 and abs(yk-y2)>1:
                    return True
        if yk==1:
            if (y1==2 or y2==2) and x1!=x2:
                if abs(xk-x1)>1 and abs(xk-x2)>1:
                    return True
        elif yk==8:
            if (y1==7 or y2==7) and x1!=x2:
                if abs(xk-x1)>1 and abs(xk-x2)>1:
                    return True
    else:
        return False
    

t=int(input())
while t>0:
    xk,yk=map(int,input().split())
    x1,y1=map(int,input().split())
    x2,y2=map(int,input().split())
    if function(xk,yk,x1,y1,x2,y2):
        print("YES")
    else:
        print("NO")
    t-=1

Check Mate CodeChef Solution in PYTH

“ ”

import sys
input = sys.stdin.readline

def function(xk,yk,x1,y1,x2,y2):
    if (xk==1 or yk==1 or xk==8 or yk==8):
        if xk==1:
            if (x1==2 or x2==2) and y1!=y2:
                if abs(yk-y1)>1 and abs(yk-y2)>1:
                    return True
        elif xk==8:
            if (x1==7 or x2==7) and y1!=y2:
                if abs(yk-y1)>1 and abs(yk-y2)>1:
                    return True
        if yk==1:
            if (y1==2 or y2==2) and x1!=x2:
                if abs(xk-x1)>1 and abs(xk-x2)>1:
                    return True
        elif yk==8:
            if (y1==7 or y2==7) and x1!=x2:
                if abs(xk-x1)>1 and abs(xk-x2)>1:
                    return True
    else:
        return False
    

t=int(input())
while t>0:
    xk,yk=map(int,input().split())
    x1,y1=map(int,input().split())
    x2,y2=map(int,input().split())
    if function(xk,yk,x1,y1,x2,y2):
        print("YES")
    else:
        print("NO")
    t-=1

Check Mate CodeChef Solution in C#

“ ”

#region usings
using System;
using System.IO;
using System.Text;
using System.Linq;
using System.Collections;
using static System.Math;
using static System.Array;
using static System.Convert;
using System.Collections.Generic;
using System.Runtime.CompilerServices;

#endregion
namespace CodeChef
{
    public class Solution
    {
        private static readonly Scanner sc = new Scanner();
        static void Main()
        {
            int testCases = sc.ReadInt();
            while (testCases-- > 0)
            {
                long[] king = sc.ReadLongArr();
                long[] rook1 = sc.ReadLongArr();
                long[] rook2 = sc.ReadLongArr();
                Solve(king, rook1, rook2);
            }
            sc.Flush();
            sc.Close();
        }

        private static void Solve(long[] king, long[] rook1, long[] rook2)
        {
            string res = "NO";
            Position<long> k = new Position<long>(king[0], king[1]);
            Position<long> r1 = new Position<long>(rook1[0], rook2[0]);
            Position<long> r2 = new Position<long>(rook1[1], rook2[1]);
            if (!(k.x == 1 || k.y == 8 || k.x == 8 || k.y == 1))
                res = "NO";
            else
            {
                if (k.x == 1)
                {
                    if ((r1.x == 2 || r1.y == 2) && r2.x != r2.y)
                    {
                        if (Abs(r2.x - k.y) > 1 && Abs(r2.y - k.y) > 1)
                        {
                            res = "YES";
                        }
                    }

                }
                else if (k.x == 8)
                {
                    if ((r1.x == 7 || r1.y == 7) && r2.x != r2.y)
                    {
                        if (Abs(r2.x - k.y) > 1 && Abs(r2.y - k.y) > 1)
                        {
                            res = "YES";
                        }
                    }
                }
                if (k.y == 1)
                {
                    if ((r2.x == 2 || r2.y == 2) && r1.x != r1.y)
                    {
                        if (Abs(r1.x - k.x) > 1 && Abs(r1.y - k.x) > 1)
                        {
                            res = "YES";
                        }
                    }

                }
                else if (k.y == 8)
                {
                    if ((r2.x == 7 || r2.y == 7) && r1.x != r1.y)
                    {
                        if (Abs(r1.x - k.x) > 1 && Abs(r1.y - k.x) > 1)
                        {
                            res = "YES";
                        }
                    }
                }
            }
            sc.WriteLine(res);
        }

    }
    public class Position<T>
    {
        public T x;
        public T y;
        public Position(T x, T y)
        {
            this.x = x;
            this.y = y;
        }
    }
    public class Scanner
    {

#if (!DEBUG)
        public static StreamReader streamReader = new StreamReader(Console.OpenStandardInput());
        public static StreamWriter streamWriter = new StreamWriter(Console.OpenStandardOutput());
#else
        public static StreamReader streamReader = new StreamReader(@"c:\users\869963\source\repos\competitive\Codechef\TextFile1.txt");
        public static StreamWriter streamWriter = new StreamWriter(@"c:\users\869963\source\repos\competitive\Codechef\TextFile2.txt");
#endif
        #region Input
        public int ReadInt()
        {
            return Convert.ToInt32(streamReader.ReadLine());
        }
        public string ReadLine()
        {
            return streamReader.ReadLine();
        }
        public long ReadLong()
        {
            return Convert.ToInt64(streamReader.ReadLine());
        }
        public double ReadDouble()
        {
            return Convert.ToDouble(streamReader.ReadLine());
        }
        public int[] ReadIntArr()
        {
            return ConvertAll(streamReader.ReadLine().TrimEnd().Split(' '), t => Convert.ToInt32(t));
        }
        public float[] ReadFloatArr()
        {
            return ConvertAll(streamReader.ReadLine().TrimEnd().Split(' '), t => float.Parse(t));
        }
        public long[] ReadLongArr()
        {
            return ConvertAll(streamReader.ReadLine().TrimEnd().Split(' '), t => Convert.ToInt64(t));
        }
        public char[] ReadCharArr()
        {
            return streamReader.ReadLine().Replace(" ", "").ToCharArray();
        }
        public int[][] ReadInt2DArr(long n)
        {
            int[][] res = new int[n][];
            for (int i = 0; i < n; i++)
            {
                res[i] = ReadIntArr();
            }
            return res;
        }

        #endregion
        #region Output
        public void Write<T>(T t)
        {
            streamWriter.Write(t);
        }
        public void WriteLine<T>(T result)
        {
            streamWriter.WriteLine(result);
        }
        public void WriteArray<T>(T[] secondHalf)
        {
            for (int i = 0; i < secondHalf.Length; i++)
            {
                streamWriter.WriteLine(secondHalf[i] + " ");
            }
            WriteLine("");
        }
        public void Write2DMatrix<T>(T[][] sum)
        {
            for (int i = 0; i < sum.Length; i++)
            {
                for (int j = 0; j < sum[i].Length; j++)
                {
                    Write<string>($"{sum[i][j]}");
                }
                WriteLine<string>("");
            }
        }
        public void YESNO(bool condition)
        {
            WriteLine(condition ? "YES" : "NO");
        }
        public void YesNo(bool condition)
        {
            WriteLine(condition ? "Yes" : "No");
        }
        public void yesno(bool condition)
        {
            WriteLine(condition ? "yes" : "no");
        }
        public void Flush()
        {
            streamWriter.Flush();
        }
        public void Close()
        {
            streamReader.Close();
            streamWriter.Close();
        }

        #endregion
    }
    public class Utilities
    {
        public static long PowerModular(long x, long y)
        {
            long res = 1;

            while (y > 0)
            {
                if ((y & 1) != 0)
                    res = res * x;
                y = y >> 1;
                x = x * x;
            }
            return res;
        }
        public static T MostFrequent<T>(IEnumerable<T> source)
        {
            T res = source.GroupBy(auto => auto).OrderByDescending(g => g.Count()).First().Key;
            return res;
        }
        public static long NearestPrime(long n)
        {
            if (n % 2 != 0)
                n -= 2;
            else
                n--;

            int i, j;
            for (i = (int)n; i >= 2; i -= 2)
            {
                if (i % 2 == 0)
                    continue;
                for (j = 3; j <= Math.Sqrt(i); j += 2)
                {
                    if (i % j == 0)
                        break;
                }
                if (j > Math.Sqrt(i))
                    return i;
            }
            return 2;
        }
        public static long GCD(long a, long b)
        {
            if (b == 0)
                return a;
            return GCD(b, a % b);
        }
        public static long LCM(long a, long b)
        {
            return (a / GCD(a, b)) * b;
        }
        public static long[] SieveOfEratosthenes(int n)
        {
            bool[] prime = new bool[n + 1];
            long j = 0; long[] arr = new long[n];
            for (int i = 0; i < n; i++)
                prime[i] = true;

            for (int p = 2; p * p <= n; p++)
            {
                if (prime[p] == true)
                {
                    for (int i = p * p; i <= n; i += p)
                        prime[i] = false;
                }
            }
            for (int i = 2; i <= n; i++)
            {
                if (prime[i] == true)
                {
                    arr[j] = i;
                    j++;
                }
            }
            return arr;
        }
    }
}

Check Mate CodeChef Solution in GO

“ ”

package main

import (
	"bufio"
	"bytes"
	"fmt"
	"os"
)

func main() {
	// hint(105)
	reader := bufio.NewReader(os.Stdin)

	tc := readNum(reader)
	var buf bytes.Buffer
	for tc > 0 {
		tc--
		king := readNNums(reader, 2)
		rocks := make([][]int, 2)
		for i := 0; i < 2; i++ {
			rocks[i] = readNNums(reader, 2)
		}
		res := solve(king, rocks)

		if res {
			buf.WriteString("YES\n")
		} else {
			buf.WriteString("NO\n")
		}
	}
	fmt.Print(buf.String())
}

func readUint64(bytes []byte, from int, val *uint64) int {
	i := from

	var tmp uint64
	for i < len(bytes) && bytes[i] >= '0' && bytes[i] <= '9' {
		tmp = tmp*10 + uint64(bytes[i]-'0')
		i++
	}
	*val = tmp

	return i
}

func readInt(bytes []byte, from int, val *int) int {
	i := from
	sign := 1
	if bytes[i] == '-' {
		sign = -1
		i++
	}
	tmp := 0
	for i < len(bytes) && bytes[i] >= '0' && bytes[i] <= '9' {
		tmp = tmp*10 + int(bytes[i]-'0')
		i++
	}
	*val = tmp * sign
	return i
}

func readString(reader *bufio.Reader) string {
	s, _ := reader.ReadString('\n')
	for i := 0; i < len(s); i++ {
		if s[i] == '\n' {
			return s[:i]
		}
	}
	return s
}

func readNum(reader *bufio.Reader) (a int) {
	bs, _ := reader.ReadBytes('\n')
	readInt(bs, 0, &a)
	return
}

func readTwoNums(reader *bufio.Reader) (a int, b int) {
	res := readNNums(reader, 2)
	a, b = res[0], res[1]
	return
}

func readThreeNums(reader *bufio.Reader) (a int, b int, c int) {
	res := readNNums(reader, 3)
	a, b, c = res[0], res[1], res[2]
	return
}

func readNNums(reader *bufio.Reader, n int) []int {
	res := make([]int, n)
	x := 0
	bs, _ := reader.ReadBytes('\n')
	for i := 0; i < n; i++ {
		for x < len(bs) && (bs[x] < '0' || bs[x] > '9') && bs[x] != '-' {
			x++
		}
		x = readInt(bs, x, &res[i])
	}
	return res
}

func solve(king []int, rocks [][]int) bool {

	var first_rock_move func(king []int, first []int, second []int) bool
	var king_move func(king []int, first []int, second []int) bool
	var second_rock_move func(king []int, first []int, second []int) bool

	first_rock_move = func(king, first, second []int) bool {

		if canMoveTo(first, second, []int{king[0], first[1]}) &&
			king_move(king, []int{king[0], first[1]}, second) {
			return true
		}

		if canMoveTo(first, second, []int{first[0], king[1]}) &&
			king_move(king, []int{first[0], king[1]}, second) {
			return true
		}

		return false
	}

	king_move = func(king []int, first []int, second []int) bool {
		r, c := king[0], king[1]

		for i := -1; i <= 1; i++ {
			for j := -1; j <= 1; j++ {
				if i == 0 && j == 0 {
					continue
				}
				u, v := r+i, c+j
				if u < 1 || u > 8 || v < 1 || v > 8 {
					continue
				}
				if u == first[0] && v == first[1] {
					// beat first rock
					if !second_rock_move([]int{u, v}, nil, second) {
						return false
					}
				}
				if u == second[0] && v == second[1] {
					if !second_rock_move([]int{u, v}, first, nil) {
						return false
					}
				}

				if !second_rock_move([]int{u, v}, first, second) {
					return false
				}
			}
		}
		return true
	}

	second_rock_move = func(king []int, first []int, second []int) bool {
		if first != nil {
			if first[0] == king[0] || first[1] == king[1] {
				return true
			}
		}
		if second != nil {
			if second[0] == king[0] || second[1] == king[1] {
				return true
			}
		}
		return false
	}

	return first_rock_move(king, rocks[0], rocks[1]) || first_rock_move(king, rocks[1], rocks[0])
}

func canMoveTo(a, b, c []int) bool {
	// can a go to c
	if a[0] == c[0] {
		// same column
		if b[0] == a[0] {
			return b[1] < min(a[1], c[1]) || max(a[1], c[1]) < b[1]
		}
	}
	if a[1] == c[1] {
		// same row
		if b[1] == a[1] {
			return b[0] < min(a[0], c[0]) || max(a[0], c[0]) < b[0]
		}
	}

	return true
}

func min(a, b int) int {
	if a <= b {
		return a
	}
	return b
}

func max(a, b int) int {
	if a >= b {
		return a
	}
	return b
}

Check Mate CodeChef Solution Review:

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