{"text":"int main() {\r\n\r\n    vector<vector<int>> cost = {{0, 10, 15, 20}, \r\n                                {10, 0, 35, 25}, \r\n                                {15, 35, 0, 30}, \r\n                                {20, 25, 30, 0}};\r\n\r\n    int res = tsp(cost);\r\n    cout << res << endl;\r\n\r\n    return 0;\r\n}"}