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: In function ‘int main()’: user.cpp:66:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1, "%d%d", &n, &m); ^ user.cpp:69:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1, "%d%d%d", &a, &b, &nr); ^