tấm chiếu mới .-.

:))))))))))))))))))))))))))

include <bits/stdc++.h>

using namespace std;
int n, m, a[1000005], res, d[1000005];
int main() {
cin >> n >> m;
for ( int i = 1; i <= n; i++ ) {
cin >> a[i];
d[a[i]]++;
}
sort ( a + 1, a + 1 + n );
for ( int i = n; i >1; i-- ) {
res=res+ upper_bound ( a + 1, a + i, m - a[i] )-a-1;
}
cout<<res;
}

L

include<iostream>

using namespace std;

int main(){
int x;
cin >> x;
cout << "So gap doi la : " << 2 * x;
return 0;
}

hihi

[user: Akira]

alo

Kẻ Vô Danh