func_code_string: #include <bits/stdc++.h>   using namespace std;   struct node {     int wh, a, b, c, cst;     node(int WH, int A, int B, int C, int CST) {       wh = WH;       a = A;       b = B;       c = C;       cst = CST;     }     bool operator<(const node &t) const { return cst < t.cst; }   };   vector<node> v1, v2;   int main() {     int n;     cin >> n;     for (int i = 0; i < n; i++) {       int a, b, c, d;       cin >> a >> b >> c >> d;       v1.push_back(node(i + 1, a, b, c, d));     }     for (int i = 0; i < n; i++) {       bool b = true;       for (int j = 0; j < n; j++)         if (v1[i].a < v1[j].a && v1[i].b < v1[j].b && v1[i].c < v1[j].c)           b = false;       if (b) v2.push_back(v1[i]);     }     sort(v2.begin(), v2.end());     cout << v2[0].wh << endl;     return 0;   }   