Compilare: user.cpp: In function ‘int bellmanford()’: user.cpp:33:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<g[nod].nod.size(); i++) ^ user.cpp: In function ‘void flux_maxim()’: user.cpp:61:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<g[n].nod.size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:83:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("fmcm.in","r",stdin); ^ user.cpp:84:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("fmcm.out","w",stdout); ^ user.cpp:85:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&n,&m,&sursa,&destinatie); ^ user.cpp:88:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&x,&y,&z,&t); ^