Compilare: user.cpp: In function ‘int elibereaza(int)’: user.cpp:32:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<l[x].size(); i++) ^ user.cpp:40:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<l[x].size(); i++) ^ user.cpp: In function ‘void cupleaza(int)’: user.cpp:52:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<l[x].size(); i++) ^ user.cpp:59:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<l[x].size(); i++) ^ user.cpp: In function ‘void citeste()’: user.cpp:16:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%i%i%i", &n, &m, &e); ^ user.cpp:19:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%i%i", &x, &y); ^