Compilare: user.cpp: In function ‘void DFS1(int)’: user.cpp:64:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < G[x].size(); i++) ^ user.cpp: In function ‘void DFS2(int)’: user.cpp:75:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i = 0; i < GT[x].size(); i++) ^ user.cpp: In function ‘void CitireListeAdiacenta()’: user.cpp:50:30: 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:54:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&x,&y); ^