Compilare: user.cpp: In function ‘void DFS(int, int&)’: user.cpp:32:6: warning: unused variable ‘i’ [-Wunused-variable] {int i; ^ user.cpp: In function ‘int main()’: user.cpp:42:8: warning: unused variable ‘j’ [-Wunused-variable] {int i,j,k,l,minv; ^ user.cpp:42:10: warning: unused variable ‘k’ [-Wunused-variable] {int i,j,k,l,minv; ^ user.cpp:42:12: warning: unused variable ‘l’ [-Wunused-variable] {int i,j,k,l,minv; ^ user.cpp: In function ‘void Citire()’: user.cpp:18:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:20:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {fscanf(f,"%d",&c[i]); ^ user.cpp:25:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {fscanf(f,"%d%d",&x,&y); ^