Compilare: main.cpp: In function 'void DFS1(int)': main.cpp:27:6: warning: unused variable 'i' [-Wunused-variable] {int i; ^ main.cpp: In function 'void DFS2(int, int)': main.cpp:36:6: warning: unused variable 'i' [-Wunused-variable] {int i; ^ main.cpp: In function 'void Citire()': main.cpp:19:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ main.cpp:21:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] {fscanf(f,"%d%d",&x,&y); ^