Compilare: user.cpp: In function ‘bool dijkstra()’: user.cpp:56:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<g[Nod].size(); i++) ^ user.cpp:77:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<g[Nod].size(); j++) ^ user.cpp: In function ‘void bellmanford()’: user.cpp:102:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<g[nod].size(); i++) ^ user.cpp: In function ‘void flux_maxim()’: user.cpp:120:17: warning: unused variable ‘i’ [-Wunused-variable] int i, j, r; ^ user.cpp: In function ‘int main()’: user.cpp:141:41: 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:142:43: 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:143:55: 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:146:46: 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); ^