Compilare: user.cpp: In function ‘int main()’: user.cpp:12:23: warning: unused variable ‘j’ [-Wunused-variable] int n,i,m,sum2,mi,j,ok,nr,sum; ^ user.cpp:12:28: warning: unused variable ‘nr’ [-Wunused-variable] int n,i,m,sum2,mi,j,ok,nr,sum; ^ user.cpp:13:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:18:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&ok); ^