Tên đăng nhập Điểm ▴ Bài tập Giới thiệu
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Lmao

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khong co j, chi la acc clone

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nguyenhuuphong
Nguyễn Hữu Phong
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include <bits/stdc++.h>

using namespace std;

define int long long

int duoc(int n)
{
int dem=0;
long double x;
for(int i=1; ii<n; i++) if(n%i==0) dem+=2, x=n/i; int y=sqrt(x); if(y*y==x) return false; if(dem==z) return true; return false; } int n, x; main() { int d=0; cin >> n >> x;
for(int i=2; i
i<=n; i++)
{
if(duoc(i)==true) d++;
}
cout << d;
return 0;
}