Compilare: user.cpp: In function ‘int main()’: user.cpp:11:17: warning: unused variable ‘var’ [-Wunused-variable] int n,i,min,var,j,k; ^ user.cpp:12:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.cpp:14:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&a[i]); ^