Compilare: user.cpp: In function ‘bool dijkstra()’: user.cpp:86:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<g[Nod].size(); i++) ^ user.cpp:107:41: 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:131:41: 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:148:17: warning: unused variable ‘i’ [-Wunused-variable] int i, j, r; ^ user.cpp: In function ‘int ReadInt()’: user.cpp:24:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buffer,1,BSIZE,stdin); ^ user.cpp:34:48: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buffer,1,BSIZE,stdin); ^ user.cpp: In function ‘int main()’: user.cpp:169:41: 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:170:43: 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:171:40: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(Buffer,1,BSIZE,stdin); ^