Compilare: user.cpp: In function ‘int main()’: user.cpp:34:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[n].size(); i++){ ^ user.cpp: In function ‘bool BFS()’: user.cpp:67:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < v[nod].size(); j++) { ^ user.cpp: In function ‘int main()’: user.cpp:18:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("maxflow.in", "r", stdin); ^ user.cpp:19:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("maxflow.out", "w", stdout); ^ user.cpp:23:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ user.cpp:26:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &x, &y, &c); ^