题面

题意

题解

代码

#include<bits/stdc++.h>

using namespace std;
typedef long long ll;
int main() {

    int t;
    cin >> t;
    while (t--) {
        ll x, y;
        cin >> x >> y;
        ll res = 0;
        for (ll k = 1; k <= sqrt(x); k++) {
            res += max(0ll, min(y, x / k - 1) - k);
        }
        cout << res << endl;
    }

    return 0;
}