Submission

Score: 20

User: GONGGONG

Problemset: จับคู่เลขมงคล

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-11 22:44:56

#include <iostream>
#include <unordered_map>
using namespace std;

int main() {
    int n;cin>>n;
    int arr[n];
    for(int i=0;i<n;i++) cin>>arr[i];
    int target;cin>>target;
    unordered_map<int,int> m;
    int ok=1;
    for(int i=0;i<n;i++){
        int c=target-arr[i];
        if(m.find(arr[i])!=m.end()) {cout<<arr[i]<<' '<<c<<'\n';ok=0;}
        m[c]=arr[i];
    }
    if(ok) cout<<"No";
}