Compilare: user.cpp: In function ‘int main()’: user.cpp:116:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i< v[1].v.size(); i++) ^ user.cpp:134:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i< v[arc.destinatie].v.size(); i++) ^ user.cpp:100:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, a, b, c; ^ user.cpp: In function ‘void cit(int&)’: user.cpp:16:54: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++pz==290000)fread(ax,1,290000,stdin),pz=0; ^ user.cpp:22:54: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++pz==290000)fread(ax,1,290000,stdin),pz=0; ^ user.cpp: In function ‘int main()’: user.cpp:97:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.out","w",stdout); ^ user.cpp:98:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.in","r",stdin); ^