#include <bits/stdc++.h> #pragma GCC optimize("O3,unroll-loops") #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt") using namespace std; const int N = 4100 + 10; int n, m, k, cnt[N], diff[N][N]; char c[] = {'A', 'C', 'G', 'T'}; string s[N]; bitset<N> a[N]; int main() { ios:: sync_with_stdio(0), cin.tie(0); cin >> n >> m >> k; for (int i = 0; i < n; i++) cin >> s[i]; for (int k = 0; k < 4; k++) { for (int i = 0; i < n; i++) { a[i].reset(); for (int j = 0; j < m; j++) if (s[i][j] == c[k]) a[i][j] = 1; } for (int i = 0; i < n; i++) for (int j = i + 1; j < n; j++) if (diff[i][j] <= 2 * k) diff[i][j] += (a[i] ^ a[j]).count(); } for (int i = 0; i < n; i++) for (int j = i + 1; j < n; j++) if (diff[i][j] == 2 * k) cnt[i]++, cnt[j]++; for (int i = 0; i < n; i++) if (cnt[i] == n - 1) { cout << i + 1 << '\n'; break; } return 0; }

genetics.cpp: In function 'int main()':
genetics.cpp:30:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   30 |     for (int i = 0; i < n; i++)
      |     ^~~
genetics.cpp:35:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   35 |  return 0;
      |  ^~~~~~