Compilare: user.cpp: In function ‘int Edmonds_Karp()’: user.cpp:24:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < G[nr].size(); i++) ^ user.cpp:42:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < G[n].size(); j++) ^ user.cpp: In function ‘int main()’: user.cpp:73:31: 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:76:42: 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); ^