Submission

Score: 100

User: Kei

Problemset: จับคู่เลขมงคล

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-08 14:58:19

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int,int>;

void solve(){
    int n,k; cin >> n;
    int cur,match;
    vector<int> v(n);
    vector<pii> chosen;
    for(int& x : v) cin >> x;
    cin >> k;
    for(int i=0;i<n;i++){
        cur=v[i];
        match = k-cur;
        for(int j=i+1;j<n;j++){
            if(v[j]==match){
                chosen.push_back({cur,match});
            }
        }
    }
    for(pii& p : chosen) cout << p.first << ' ' << p.second << '\n';
    if(chosen.empty()) cout << "No";
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}