func_code_string: #include <bits/stdc++.h>   using namespace std;   using nagai = long long;   const int N = 100;   int matr[N][N];   const int K = 12;   int de[N][K];   const int oo = 0x3f3f3f3f;   mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     int n, k;     cin >> n >> k;     for (int i = 0; i < n; ++i)       for (int j = 0; j < n; ++j) cin >> matr[i][j];     int ans = oo;     for (int i = 0; i < 30000; ++i) {       memset(de, 0x3f, sizeof de);       vector<int> col(n);       for (int i = 0; i < n; ++i) col[i] = rnd() % 2;       de[0][0] = 0;       for (int l = 0; l < k; ++l)         for (int a = 0; a < n; ++a)           for (int b = 0; b < n; ++b)             if (col[a] != col[b])               de[b][l + 1] = min(de[b][l + 1], de[a][l] + matr[a][b]);       ans = min(ans, de[0][k]);     }     cout << ans <<   n ;     return 0;   }   