func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     int m;     int k;     vector<vector<int> > A;     cin >> n >> m >> k;     for (int i = 0; i < n; i++) {       vector<int> X;       for (int j = 0; j < m; j++) {         int l;         cin >> l;         X.push_back(l);       }       A.push_back(X);     }     int totalSum = 0;     int changes = 0;     for (int j = 0; j < m; j++) {       int maxSum = 0;       vector<int> maxI;       maxI.push_back(0);       for (int i = 0; i < n; i++) {         if (A[i][j] == 1) {           int sum = 0;           for (int z = i; z < min(i + k, n); z++) {             sum += A[z][j];           }           if (sum > maxSum) {             maxSum = sum;             for (int elem = 0; elem < maxI.size(); elem++) {               maxI[elem] = i;             }           } else if (sum == maxSum) {             maxI.push_back(i);           }         }       }       int minimumChanges = 10000000;       for (auto elem : maxI) {         int toChange = 0;         for (int i = 0; i < elem; i++) {           if (A[i][j] == 1) {             toChange++;           }         }         if (toChange < minimumChanges) {           minimumChanges = toChange;         }       }       changes += minimumChanges;       totalSum += maxSum;     }     cout << totalSum <<     << changes;     return 0;   }   