Compilare: user.cpp: In function ‘void citire()’: user.cpp:38:10: warning: unused variable ‘j’ [-Wunused-variable] int i,j,x,y; ^ user.cpp: In function ‘void DFS(int)’: user.cpp:53:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<lista[vf].size(); i++) ^ user.cpp: In function ‘void DFST(int)’: user.cpp:65:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<listaT[vf].size(); i++) ^ user.cpp: In function ‘void afisare()’: user.cpp:75:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {for (j=0; j<ctc[i].size(); j++) ^ user.cpp: In function ‘void citire()’: user.cpp:40:31: 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:44:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &x, &y); ^