func_code_string: #include <bits/stdc++.h>   using namespace std;   const int kMaxN = 1010;   struct Cell {     int x, y, val;     bool operator<(const Cell &p) const { return val > p.val; }   } cell[kMaxN * kMaxN];   vector<int> vec[kMaxN];   int g[kMaxN][kMaxN];   int n, m;   void init() {     scanf( %d%d , &n, &m);     for (int i = 0; i < n; ++i) {       for (int j = 0; j < m; ++j) {         scanf( %d , &cell[i * m + j].val);         cell[i * m + j].x = i;         cell[i * m + j].y = j;       }     }     sort(cell, cell + n * m);   }   void solve() {     for (int i = 0; i < n * m; ++i) {       int j = cell[i].y;       int q = cell[i].x;       for (int l = 0; l < ((int)(vec[j]).size()); ++l) {         int p = vec[j][l];         if (g[p][q]) {           printf( %d n , cell[i].val);           return;         }         g[p][q] = g[q][p] = 1;       }       vec[j].push_back(q);     }   }   int main() {     init();     solve();     return 0;   }   