Compilare: user.cpp: In function ‘void initializare()’: user.cpp:64:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[x0].size();i++) ^ user.cpp: In function ‘void citire()’: user.cpp:38:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d\n", &n, &m); ^ user.cpp:41:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d\n", &x, &y, &c); ^