Submission

Score: 100

User: code

Problemset: จับคู่เลขมงคล

Language: cpp

Time: 0.002 second

Submitted On: 2026-04-14 22:07:33

#include <bits/stdc++.h>
using namespace std;
int main () {
    int num;cin>>num;
    int day[31]={0};
    int arr[num];
    for (int i=0;i<num;i++){
        int n;cin>>n;
        day[n]=1;
        arr[i]=n;
    }
    int luckynum;cin>>luckynum;
    bool check=false;
    for (int i=0;i<num;i++){
        if (day[luckynum-arr[i]]==1){
            day[luckynum-arr[i]]=0;
            if (day[arr[i]]==1 && day[luckynum-arr[i]]==0){
                cout<<arr[i]<<" "<<luckynum-arr[i]<<"\n";
                day[arr[i]]=0;
                check=true;
            }
        }
    }
    if (check==false){
        cout<<"No";
    }
    return 0;
}