Compilare: main.cpp: In function 'int dfs(int, int, int)': main.cpp:26:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (; rem[x] < edg[x].size(); ++rem[x]) { ~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:47:32: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (aux = dfs(1, n, 110000)) { ^ main.cpp:36:35: 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); ^ main.cpp:37:37: 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); ^