只有我用二分写的吗?
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只有我用二分写的吗?
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CH_3COOCH_2CH_3楼主2025/1/4 15:12
#include <bits/stdc++.h>
using namespace std;

#define x first
#define y second
typedef long long LL;
typedef pair<int, int> PII;

const int N = 1e4 + 10;
int n;
int o[N], x[N];

int get_sum(int mid)
{
    int cnt = 0;
    for (int i = 0; i < n; i ++)
    {
        if (o[i] / mid == x[i]) cnt ++;
    }
    return cnt;
}

int main() {
    cin.tie(0), cout.tie(0), ios::sync_with_stdio(false);
    cin >> n;
    int end = 1e9;
    for (int i = 0; i < n; i ++)
    {
        cin >> o[i] >> x[i];
        end = min(end, o[i] / x[i]);
    }
    int l = 0, r = end;
    while(l < r)
    {
        int mid = l + r >> 1;
        if (get_sum(mid) == n) r = mid;
        else l = mid + 1;
    }
    cout << l << " " << end << endl;
    return 0;
}
2025/1/4 15:12
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