pls give me some tests,i don't know,what's wrong with my code
#include<iostream>


#define  endl '\n'
#define ll long long
# define ld long double
using namespace std;

ll d[1100][1100];
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
#ifdef LOCAL
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
#endif // LOCALfr

int n,m;


            for (int i=1;i<=1000;i++) {
    for (int j=1;j<=1000;j++) {
        d[i][j] = d[i][j-1] + d[i - 1][j - 1] + 1;
    }
            }
n=1;m=1;
while (n && m) {
    cin>>n>>m;
    if (n &&m) {
        int l=1,r=m+1000,mi;
        while (l<r) {
            mi=(l+r)/2;
            if (d[n][mi]>=m) {
                r=mi;
            }
            else l=mi+1;
        }
        cout<<l<<endl;
    }
}
    return 0;
}

Edited by author 03.11.2021 00:01

Edited by author 03.11.2021 00:01

Edited by author 03.11.2021 00:01