func_code_string: #include <bits/stdc++.h>   using namespace std;   int z[1005];   string a[1005];   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     int n, m;     cin >> n >> m;     for (int i = 0; i < n; ++i) cin >> a[i];     for (int j = 0; j < m; ++j) {       for (int i = 1; i < n; ++i)         for (int i1 = 0; i1 < i; ++i1) {           bool ok = false;           for (int k = 0; k < j; ++k)             if (z[k] == 0 && a[i][k] > a[i1][k]) {               ok = true;               break;             }           if (!ok && a[i][j] < a[i1][j]) z[j] = 1;         }     }     int ans = 0;     for (int i = 0; i < m; ++i)       if (z[i]) ++ans;     cout << ans <<   n ;   }   