Submission
Status: 
	
	PPP--PPP--
Score: 60
User: Namkhing
Problemset: จับคู่เลขมงคล
Language: cpp
Time: 0.003 second
Submitted On: 2025-04-11 15:31:51
#include <bits/stdc++.h>
using namespace std;
int main() {
    cin.tie(nullptr)->ios_base::sync_with_stdio(false);
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    int x;
    cin >> x;
    set<int> have;
    bool ok = false;
    for (int i = 0; i < n; i++) {
        if (have.find(x - a[i]) != have.end()) {
            cout << x - a[i] << " " << a[i] << "\n";
            ok = true;
        }
        have.insert(a[i]);
    }
    if (!ok) cout << "No";
}