Compilare: user.cpp: In function ‘int Edmonds_Karp()’: user.cpp:23:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < G[nr].size(); i++) ^ user.cpp:38:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < G[n+m+1].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:114:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < G[i].size(); j++) ^ user.cpp:67:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1, "%d%d\n", &n, &m); ^ user.cpp:84:29: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, 100000, f1); ^