Submission

Score: 20

User: SayRo

Problemset: จับคู่เลขมงคล

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-08 10:25:26

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

int main(){
    cin.tie(nullptr)->sync_with_stdio(0);
    map<int,int> m;
    bool c=false;
    int n,luck;
    cin>>n;
    for(int i=0;i<n;i++){ int x;cin>>x;m[x]++;}
    cin>>luck;
    for(int i=1;i<=luck/2;i++){
        if(i==luck-i&&m[i]<2) continue;
        if(m[i]&&m[luck-i]) c=true,cout<<i<<" "<<luck-i<<endl;
    }
    if(!c) cout<<"No";
}