int a[]={1,2,3,4,5}; bool res=binary_search(a,a+5,20); int ind=lower_bound(a,a+5,3)-a; int indi=upper_bound(a,a+5,3)-a; cout<<indi<<endl;
int a[]={1,2,3,4,5}; bool res=binary_search(a,a+5,20); int ind=lower_bound(a,a+5,3)-a; int indi=upper_bound(a,a+5,3)-a; cout<<indi<<endl;