Codeforce-Problems-Solutions/A_Square.cpp at main · MominulMoon/Codeforce-Problems-Solutions · GitHub

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

#define iamspeed ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define FOR(i, j, n) for(int i = j; i < n; i++)
#define trav(i, a) for(auto &i: a) cin >> i;
#define all(x) x.begin(), x.end()
#define reverse_sort(v) sort(all(v),greater<int>())
#define prnt(v) for(auto&i:v) cout << i << " ";
#define take(v) for(auto &i : v ) cin >> i
#define ed  "\n"
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define F first
#define S second
#define GCD __gcd
#define DEBUG(i) cout << "DEBUG " << i << "\n";
#define sorted(x) is_sorted(x.begin(),x.end())
#define BS(v,n) binary_search(v.begin(),v.end(),n)
#define trans(x,y) transform(all(x),x.begin(),:: y)

typedef unsigned long long ull;
typedef long long ll;
typedef vector<int> vi;
typedef vector<long long> vll;

const ll MOD = 998244353;
const ll INF = 1e18;
const ll NN=1e6+1;
// vll primes(NN+1,0);
// void seive(){
//     primes[0]=primes[1]=1;
//     for(ll i=2;i*i<=NN;i++){
//         if(primes[i]==0){
//             for(ll j=i*i;j<=NN;j+=i){
//                 primes[j]++;
//             }
//         }
//     }
// }


void solve(){
    map <int,int> mp;
    int a;
    FOR(i,0,4){
        cin >> a;
        mp[a]++;
    }
    if(mp[a]==4){
        cout <<"YES"<< ed;
    }
    else
        cout << "NO" << ed;


}

int main()
{
    iamspeed
    // freopen("div7.in", "r", stdin);
    // freopen("div7.out", "w", stdout);
    // precompute();
    int t=1;
    cin >> t;
    while(t--){
        solve();
    }
    return 0;
}
/*
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*/