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Existence Of X CodeChef Solution
Problem – Existence Of X CodeChef Solution
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Existence Of X CodeChef Solution in C++17
#include <bits/stdc++.h>
using namespace std;
#define gc getchar_unlocked
#define fo(i, n) for (ll i = 0; i < n; i++)
#define Fo(i, k, n) for (i = k; k < n ? i < n : i > n; k < n ? i += 1 : i -= 1)
#define ll long long
#define ld long double
#define deb(x) cout << #x << "=" << x << endl
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define clr(x) memset(x, false, sizeof(x))
#define sortall(x) sort(all(x))
#define tr(it, a) for (auto it = a.begin(); it != a.end(); it++)
#define PI 3.1415926535897932384626
#define mod 1000000007
typedef pair<int, int> pii;
typedef pair<ll, ll> pl;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vpii;
typedef vector<pl> vpl;
typedef vector<vi> vvi;
typedef vector<vl> vvl;
ll get(int n, int k)
{
if (n & (1 << k))
return 1;
else
return 0;
}
int main()
{
ll t;
cin >> t;
while (t--)
{
ll a,b,c;cin>>a>>b>>c;
ll mx = max(max(a,b),c);
ll n = ceil(log2((ld)mx+1));
//deb(n);
ll C = 0;
fo(i,n){
ll x = get(a,i);
ll y = get(b,i);
ll z = get(c,i);
// deb(x);deb(y);deb(z);deb(C);
if(C>0){
if(x == y && x==1 && z == 0) C = 0;
else if(x == y && x==0 && z == 1) C = 0;
}
else{
if(x == y && x==1 && z == 0) C = 1;
else if(x == y && x==0 && z == 1) C = 1;
}
}
if(C>0) cout<<"NO"<<"\n";
else cout<<"YES"<<"\n";
}
return 0;
}Existence Of X CodeChef Solution in C++14
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define nline "\n"
#define ll long long
#define pub push_back
#define ull unsigned long long
#define pii pair<ll,ll>
#define lld long double
#define vi vector<ll>
#define vvi vector<vector<ll>>
#define vb vector<bool>
#define vvb vector<vector<bool>>
#define rep(i,n) for(int i=0;i<n;i++)
#define repr(i,n) for(int i=n-1;i>=0;i--)
#define REP(i,k,n) for (ll i = k; i <= n; ++i)
#define REPR(i,k,n) for (ll i = k; i >= n; --i)
#define mod 1000000007
#define ff first
#define ss second
#define vpi vector<pair<int,int>>
#define all(x) (x).begin(),(x).end()
const ll inf = 1e17;
#ifndef ONLINE_JUDGE
#define debug(x) cerr << #x <<" "; _print(x); cerr << endl;
#else
#define debug(x)
#endif
// this is stderr print
void _print(ll t) {cerr << t;}
void _print(string t) {cerr << t;}
void _print(char t) {cerr << t;}
void _print(lld t) {cerr << t;}
void _print(double t) {cerr << t;}
void _print(ull t) {cerr << t;}
template <class T, class V> void _print(pair <T, V> p);
template <class T> void _print(vector <T> v);
template <class T> void _print(set <T> v);
template <class T, class V> void _print(map <T, V> v);
template <class T> void _print(multiset <T> v);
template <class T, class V> void _print(pair <T, V> p) {cerr << "{"; _print(p.ff); cerr << ","; _print(p.ss); cerr << "}";}
template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void _print(map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
//this is stdout print
void print(ll t) {cout << t;}
void print(string t) {cout << t;}
void print(char t) {cout << t;}
void print(lld t) {cout << t;}
void print(double t) {cout << t;}
void print(ull t) {cout << t;}
template <class T, class V> void print(pair <T, V> p);
template <class T> void print(vector <T> v);
template <class T> void print(set <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T> void print(multiset <T> v);
template <class T, class V> void print(pair <T, V> p) { print(p.ff); cout << " "; print(p.ss); }
template <class T> void print(vector <T> v) { for (T i : v) {print(i); cout << " ";} }
template <class T> void print(set <T> v) { for (T i : v) {print(i); cout << " ";} }
template <class T> void print(multiset <T> v) { for (T i : v) {print(i); cout << " ";} }
template <class T, class V> void print(map <T, V> v) { for (auto i : v) {print(i); cout << "\n";}}
//use ll along with accumulate's 2nd param
void solve()
{
ll a,b,c;
cin>>a>>b>>c;
ll x=0;
bool carry=false;
for(int i=0;i<30;i++){
ll first=(((1<<i)&a)>0);
ll second=(((1<<i)&b)>0);
ll third=(((1<<i)&c)>0);
if(carry){
if(first==0 and second==0 and third==1)carry=false;
else if(first==1 and second==1 and third==0)carry=false;
}
else{
if(first==0 and second==0 and third==1)carry=true;
else if(first==1 and second==1 and third==0)carry=true;
}
}
if(carry){
cout<<"NO";
}
else
cout<<"YES";
}
signed main()
{
#ifndef ONLINE_JUDGE
freopen("error.txt", "w", stderr);
#endif
ios_base::sync_with_stdio(false);
cin.tie(NULL);
ll t = 1;
cin >> t;
while(t--)
{
solve();
cout << "\n";
}
return 0;
}Existence Of X CodeChef Solution in PYTH 3
import sys
from math import *
from collections import *
inp = lambda: sys.stdin.buffer.readline().decode().strip()
out=sys.stdout.write
# n=int(inp())
# arr=list(map(int,inp().split()))
for _ in range(int(inp())):
a,b,c=map(int,inp().split())
sa="{0:b}".format(int(a))
sb="{0:b}".format(int(b))
sc="{0:b}".format(int(c))
sa="0"*(27-len(sa))+sa
sb="0"*(27-len(sb))+sb
sc="0"*(27-len(sc))+sc
carry=0
for i in range(27):
ai,bi,ci=int(sa[i]),int(sb[i]),int(sc[i])
if (ai,bi,ci)==(0,0,1) or (ai,bi,ci)==(1,1,0):
if carry==1:
carry=0
else:
carry=1
if carry==0:
print("YES")
else:
print("NO")Existence Of X CodeChef Solution in C
#include <stdio.h>
#include <stdbool.h>
int main() {
int A, B, C;
int testcase;
scanf("%d", &testcase);
while (testcase--) {
scanf("%d%d%d", &A, &B, &C);
int solve = A + B;
if (solve == C) {
puts("Yes");
}
else {
bool carry = 0;
for (int i = 0; (1 << i) <= A + B + C; i++) {
bool b1 = (A >> i) & 1;
bool b2 = (B >> i) & 1;
bool b3 = (C >> i) & 1;
if (b1 == b2 && b2 != b3)
carry = !carry;
}
puts(carry ? "No" : "Yes");
}
}
}Existence Of X CodeChef Solution in JAVA
import java.io.*;
import java.util.*;
public class Main {
static MyScanner sc = new MyScanner();
static PrintWriter out = new PrintWriter(System.out);
static int MOD = 998244353;
static ArrayList<ArrayList<Integer>> m;
public static void main(String[] args) {
int t = 1;
t = sc.nextInt();
while (t-- != 0)
solve();
out.flush();
}
static void solve() {
int a=sc.nextInt(),b=sc.nextInt(),c=sc.nextInt(),y=31,co=0;
while(y--!=0) {
if(a==0 && b==0 && c==0 && co==0) {
out.println("YES");return;
}
int m=a&1,n=b&1,o=c&1;
if(co==1)
o=(o+1)%2;
int x=get(m,n,o);
int s=(m^x) + (n^x) +co;
co=s/2;
a>>=1;b>>=1;c>>=1;
}
out.println("NO");
}
static int get(int a,int b,int c) {
if(a==0) return (b^c);
return (~(b^c))&1;
}
/*
lower(int a[],int n) // index of last element less than n.(not equal to)
higher(int a[],int n) // index of first element greater than n(not equal to)
sieveArr(int n) // boolean array of prime numbers from [1,n]
sieveIntArr(int n) // int[] array of prime numbers from [2,n]
power(long a,long n,long mod) // return (a^n)%m
isPrime(int n) // true/false -> prime or not
isPrimeMiller(int n) // true/false -> log n
gcd(long a,long b) // gcd in long
lcm(long a,long b) // lcm in long
ex_gcd(long a,long b) // long[2] x&y such that ax + by = gcd(a,b)
Stack<>
ArrayDeque<>
*/
//================================================
public static int lower(int a[], int n) {
if (n <= a[0])
return -1;
else if (n > a[a.length - 1])
return a.length - 1;
int low = 0, high = a.length - 1;
while (low <= high) {
int mid = (low + high) / 2;
if (a[mid] < n)
low = mid + 1;
else
high = mid - 1;
}
return high;
}
public static int higher(int a[], int n) {
if (n < a[0])
return 0;
else if (n >= a[a.length - 1])
return a.length;
int low = 0, high = a.length - 1;
while (low < high) {
int mid = (low + high) / 2;
if (a[mid] > n)
high = mid;
else
low = mid + 1;
}
return high;
}
public static boolean[] sieveArr(int n) {
boolean b[] = new boolean[n + 1];
Arrays.fill(b, true);
b[1] = b[0] = false;
for (int i = 2; i * i <= n; i++) {
if (b[i]) {
for (int j = i * i; j <= n; j += i)
b[j] = false;
}
}
return b;
}
public static int[] sieveIntArr(int n) {
boolean b[] = new boolean[n + 1];
Arrays.fill(b, true);
b[1] = b[0] = false;
int c = 0;
for (int i = 2; i <= n; i++)
if (b[i]) {
c++;
for (int j = i * i; j <= n; j += i)
b[j] = false;
}
int ar[] = new int[c];
for (int i = 2, j = 0; i <= n; i++)
if (b[i])
ar[j++] = i;
return ar;
}
// Trial division
public static boolean isPrime(int n) {
if (n == 2 || n == 3 || n == 5)
return true;
else if (n < 2)
return false;
else if (n % 2 == 0 || n % 3 == 0)
return false;
else {
int k = (int) Math.sqrt(n);
for (int i = 5; i <= k; i += 6)
if (n % i == 0 || n % (i + 2) == 0)
return false;
}
return true;
}
public static long power(long a, long n, long mod) {
long res = 1L;
a = a % mod;
while (n > 0) {
if ((n & 1) == 1)
res = (res * a) % mod;
n >>= 1;
a = (a * a) % mod;
}
return res;
}
// ============
// F[0]=0,F[1]=1,F[2]=1,F[3]=2,F[4]=3,F[5]=5,F[6]=8,F[8]=13,...
// FORMULA:-
// (F[n] F[n+1])=(F[0] F[1])*(P^n)
// _ _
// p= |0 1|
// |1 1|
// - -
// Miller Rabin Test: (a^(p-1) % p != 1)
static boolean check_composite(long n, long a, long d, int s) {
long x = power(a, d, n);
if (x == 1 || x == n - 1)
return false;
for (int r = 1; r < s; r++) {
x = (x * x) % n;
if (x == n - 1)
return false;
}
return true;
}
static boolean isPrimeMiller(long n) { // returns true if n is prime, else returns false.
if (n < 2)
return false;
int r = 0;
long d = n - 1;
while ((d & 1) == 0) {
d >>= 1;
r++;
}
int ar[] = { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 };
for (int a : ar) {
if (n == a)
return true;
if (check_composite(n, a, d, r))
return false;
}
return true;
}
public static long gcd(long a, long b) {
if (a == 0)
return b;
return gcd(b % a, a);
}
public static long lcm(long a,long b){
return (a*b)/gcd(a,b);
}
public static long[] ex_gcd(long a,long b) {
if(b==0)
return new long[] {1,0};
long ar[]=ex_gcd(b,a%b);
return new long[] {ar[1],ar[0]-ar[1]*(a/b)};
}
static class MyScanner {
BufferedReader br;
StringTokenizer st;
public MyScanner() {
br = new BufferedReader(new InputStreamReader(System.in));
}
public MyScanner(String problemName) throws IOException {
br = new BufferedReader(new FileReader(problemName + ".in"));
}
String next() {
while (st == null || !st.hasMoreElements()) {
try {
st = new StringTokenizer(br.readLine());
} catch (IOException e) {
e.printStackTrace();
}
}
return st.nextToken();
}
int nextInt() {
return Integer.parseInt(next());
}
long nextLong() {
return Long.parseLong(next());
}
double nextDouble() {
return Double.parseDouble(next());
}
String nextLine() {
String str = "";
try {
str = br.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return str;
}
public int[] nextIntArr(int n) {
int a[] = new int[n];
for (int i = 0; i < n; i++)
a[i] = nextInt();
return a;
}
public long[] nextLongArr(int n) {
long a[] = new long[n];
for (int i = 0; i < n; i++)
a[i] = nextLong();
return a;
}
public double[] nextDoubleArr(int n) {
double a[] = new double[n];
for (int i = 0; i < n; i++)
a[i] = nextDouble();
return a;
}
public String[] nextArr(int n) {
String a[] = new String[n];
for (int i = 0; i < n; i++)
a[i] = next();
return a;
}
public String[] nextLineArr(int n) {
String a[] = new String[n];
for (int i = 0; i < n; i++)
a[i] = nextLine();
return a;
}
public int[][] nextInt2dArr(int n, int m) {
int a[][] = new int[n][m];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
a[i][j] = nextInt();
return a;
}
public long[][] nextLong2dArr(int n, int m) {
long a[][] = new long[n][m];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
a[i][j] = nextLong();
return a;
}
public double[][] nextDouble2dArr(int n, int m) {
double a[][] = new double[n][m];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
a[i][j] = nextDouble();
return a;
}
public char[] nextCharArr() {
return next().toCharArray();
}
public char[][] nextChar2dArr(int n, int m) {
char[][] ch = new char[n][m];
for (int i = 0; i < n; i++)
ch[i] = nextCharArr();
return ch;
}
}
}Existence Of X CodeChef Solution in PYPY 3
"""THIS TEMPLATE belongs to anuj_negi"""
#Try to use bisect in case of binary search, bisect_left, bisect_right
#Try to use sortedcontainers when available
#Try to use Multiset when available
from bisect import *
from heapq import *
#from functools import cache, lru_cache
from math import *
from collections import defaultdict as ddc
from collections import Counter
from functools import *
from itertools import *
from sys import setrecursionlimit
import io,os
into = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
def input(): return into().decode().strip()
def intin(): return int(input())
def mapin(): return map(int, input().split())
def strin(): return input().split()
def graphin(m):
zz = ddc(set)
for i in range(m):
a, b = mapin()
zz[a].add(b)
zz[b].add(a)
return zz
#----------------------------------------------
INF = 1<<64 #Or use 10**20
mod = 10**9 + 7
#----------------------------------------------
"""
SOME FACTS THAT CAN BE USED LATER -
-> if n is prime, then -> (a**(n-1)) % n = 1
-> When cases like DEFICIENT CITY to SURPLUS CITY, work on BFS using SURPLUS city and check for DEFICIENT city
-> PALINDROMEs and str-len FACTORS have some relations. if P = XQ where P, X, Q are palindromes, then X have the possible length in Factors of 'n'
-> When all substrings are said to be checked, we can go for 2 loops (With 100 limit of inner loop, minimize the memory)
"""
#----------------------------------------------
"""
-> THIS IS A Interval Based Segmented Trees
-> Can be modified or used later for similar
"""
class IntervalSeg:
def __init__(self):
self.Seg = ddc(int)
self.otherAdded = ddc(int)
def update(self, s, e, l = 0, r = 10**9, index = 1):
if r<=s or e<=l: return
if s<=l<r<=e:
self.Seg[index]+=1
self.otherAdded[index]+=1
else:
m = (l+r)//2
self.update(s, e, l, m, 2*index)
self.update(s, e, m, r, 2*index + 1)
self.Seg[index] = self.otherAdded[index] + max(self.Seg[2*index], self.Seg[2*index + 1])
def use(self, start, end):
self.update(start, end)
return self.Seg[1]
#----------------------------------------------
#FOR nCr
class nCr:
def __init__(self):
self.fact = [1]*(1000001)
self.factinv = [1]*(1000001)
for i in range(1, 1000001):
self.fact[i] = self.fact[i-1] * i % mod
self.factinv[-1] = exponentiation(self.fact[-1], mod-2, mod)
for i in range(1000000-1, 1, -1):
self.factinv[i] = self.factinv[i+1] * (i+1) % mod
def C(self, n, r):
if n<r or r<0: return 0
return self.fact[n] * self.factinv[r] % mod * self.factinv[n-r] % mod
#----------------------------------------------
#Use this when really needed
# Such as - Getting TLE because some TC can cause O(n^2) on pre-built HASHMAPS
def custom_hash(x):
return x // 1000000007, x % 1000000007
#----------------------------------------------
#Subarray size - Rolling Hash - Custom
def hash_it(arr, size, mod = (10**9 + 7)):
"""
mul -> must be greater than max(arr)
rest can be modified
"""
if not size: return
mul, hashh, div = 256, 0, (1<<(8*size-8))%mod
C = ddc(list)
for i in range(size):
hashh = (mul * hashh + arr[i])%mod
C[hashh].append(0)
for i in range(len(arr)-size):
#update the hashh
hashh = (mul*(hashh-arr[i]*div) + arr[i+size])%mod
C[hashh].append(i+1)
return C
#----------------------------------------------
def LIS(arr, n):
dp = [10**9]*(n+1)
for ele in arr:
dp[bisect_left(dp, ele)] = ele
#print(dp)
return bisect_left(dp, 10**9)
#----------------------------------------------
#Fast base^exp
def exponentiation(bas, exp, mod = 10**9 + 7):
t = 1
while(exp > 0):
if (exp % 2 != 0):
t = (t * bas) % mod
bas = (bas * bas) % mod
exp //= 2
return t % mod
#----------------------------------------------
#Fast multiplication
def fastMul(a, b, mod = 10**9 + 7):
t = 0
while(b > 0):
if (b % 2 != 0):
t = (t + a) % mod
a = (a + a) % mod
b //= 2
return t % mod
#----------------------------------------------
#Returns P*Q^-1 % Mod
def modInv(p, q=1, mod = 10**9 + 7):
expo = 0
expo = mod - 2
while (expo):
if (expo & 1):
p = (p * q) % mod
q = (q * q) % mod
expo >>= 1
return p
#----------------------------------------------
def sortArrayMinSwap(arr, n):
#O(nlogn)
ans = 0
Another = {ele:i for i, ele in enumerate(sorted(arr))}
complete = [True]*n
for j in range(n):
i = j
curr = 0
while complete[i]:
complete[i] = False
i = Another[arr[i]]
curr+=1
if curr>0:
ans += curr-1
return ans
#----------------------------------------------
yes = "YES"
no = "NO"
even = "EVEN"
odd = "ODD"
alice = "ALICE"
bob = "BOB"
#----------------------------------------------
def process(arr):
a,b,c = arr
x = 1
ff = lambda x: x&1
for i in range(32):
temp = 1<<i
aa, bb, cc = ff(a>>i), ff(b>>i), ff(c>>i)
#print(aa,bb,cc)
if aa==bb and bb!=cc:
x^=1
return yes if x else no
def main():
#T-testcases
for _ in range(int(input())):
arr = list(mapin())
ans = process(arr)
print(ans)
#print("Case #{0}: {1}".format(_+1, ans))
#--------------------------
if __name__ == "__main__":
main()Existence Of X CodeChef Solution in NODEJS
process.stdin.resume();
process.stdin.setEncoding('utf8');
// your code goes here
// declare global variables
var input_stdin = "";
var lines = "";
var input_currentline = 0;
// standard input is stored into input_stdin
process.stdin.on('data', function (data) {
input_stdin += data;
});
// standard input is done and stored into an array
process.stdin.on('end', function () {
lines = input_stdin.split("\n");
start();
});
function start() {
t = parseInt(lines[0])
let line = 1
while (t > 0) {
let [A, B, C] = lines[line++].split(' ').map(x => parseInt(x))
let overflow = 0
let num = [0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1]
let dic = {
'0000': 0,
'0001': 1,
'0010': 1,
'0011': 0,
'0100': 0,
'0101': 1,
'0110': 0,
'0111': 1,
'1000': 0,
'1001': 1,
'1010': 0,
'1011': 1,
'1100': 1,
'1101': 0,
'1110': 0,
'1111': 1
}
while ((A > 0) || (B > 0) || (C > 0)) {
overflow = num[((A & 1) << 3) + ((B & 1) << 2) + ((C & 1) << 1) + (overflow)]
A >>= 1
B >>= 1
C >>= 1
}
console.log(overflow ? 'NO' : 'YES')
t--
}
}Existence Of X CodeChef Solution in GO
package main
import (
"bufio"
"bytes"
"fmt"
"os"
)
func main() {
reader := bufio.NewReader(os.Stdin)
var buf bytes.Buffer
tc := readNum(reader)
for tc > 0 {
tc--
A, B, C := readThreeNums(reader)
res := solve(A, B, C)
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' || s[i] == '\r' {
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(A, B, C int) bool {
dp := make([]bool, 2)
dp[0] = true
fp := make([]bool, 2)
for i := 0; i < 30; i++ {
fp[0] = false
fp[1] = false
a := (A >> i) & 1
b := (B >> i) & 1
c := (C >> i) & 1
for carry := 0; carry < 2; carry++ {
if dp[carry] {
for x := 0; x < 2; x++ {
if ((a^x)+(b^x)+carry)&1 == c^x {
next := (((a ^ x) + (b ^ x) + carry) >> 1) & 1
fp[next] = true
}
}
}
}
copy(dp, fp)
}
return dp[0]
}Existence Of X CodeChef Solution Review:
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