Compilare: main.cpp: In function 'int maxflow(int, int)': main.cpp:48:38: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while(new_flow = bfs(s, t, parent)){ ^ main.cpp: In function 'int32_t main()': main.cpp:62:38: 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:63:40: 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); ^