Check Mate CodeChef Solution

Problem -Check Mate CodeChef Solution

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Check Mate CodeChef Solution in C++17

#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

#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

# 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

#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

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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