break和return重要性就体现在这

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n; cin >> n;
    for(int i = 1;i <= n;i++){
        for(int j = i;j <= n;j++){
            int k = n - i - j;
            if(k <= j) break;
            if(i % 3 == 0 || j % 3 == 0 || k % 3 == 0) continue;
            else{
                cout << "YES\n" << i << " " << j << " " << k;
                return 0;
            }
        }
    }
    cout << "NO";
    return 0;
}

加我团队吧，man