Compilare: user.cpp: In function ‘int main()’: user.cpp:22:5: warning: unused variable ‘val’ [-Wunused-variable] int val=0,nr=0,ind=1; ^ user.cpp:8:6: warning: unused variable ‘j’ [-Wunused-variable] {int j,a,n,t,val,i; ^ user.cpp:8:14: warning: unused variable ‘val’ [-Wunused-variable] {int j,a,n,t,val,i; ^ user.cpp:10:18: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.cpp:12:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:15:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;i++){ fscanf(f,"%lld",&b); ^ user.cpp:17:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] } for(i=1;i<=n;i++){ fscanf(f,"%lld",&c); ^