Compilare: main.cpp: In function 'void DFS1(int)': main.cpp:31:9: warning: unused variable 'i' [-Wunused-variable] int i; ^ main.cpp: In function 'void DFS2(int, int)': main.cpp:41:9: warning: unused variable 'i' [-Wunused-variable] int i; ^ main.cpp: In function 'void Citire()': main.cpp:20:27: 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:23:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&x,&y); ^