Compilare: user.cpp: In function ‘void citire()’: user.cpp:57:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<G[x0].size(); ++i) ^ user.cpp: In function ‘void dijkstra()’: user.cpp:76:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<G[vfmin].size(); ++j) ^ user.cpp: In function ‘void citire()’: user.cpp:40:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&n,&m); ^ user.cpp:43:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d %d",&x,&y,&c); ^