Compilare: user.cpp: In function ‘void citire()’: user.cpp:55:27: 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:75:34: 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:39:32: 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:42:42: 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); ^