思路
C++ 代码 (二分)
#include <cstdio>
#include <iostream>
using namespace std;
const int N = 1e4 + 10;
int a[N], b[N];
int n;
bool check_min(int mid)
{
for (int i = 0; i < n; i ++ )
if (a[i] / mid > b[i]) return false;
return true;
}
bool check_max(int mid)
{
for (int i = 0; i < n; i ++ )
if (a[i] / mid < b[i]) return false;
return true;
}
int main()
{
cin >> n;
for (int i = 0; i < n; i ++ ) scanf("%d%d", &a[i], &b[i]);
int l = 1, r = 1e9;
while (l < r)
{
int mid = l + r >> 1;
if (check_min(mid)) r = mid;
else l = mid + 1;
}
cout << r << ' ' ;
r = 1e9;
while (l < r)
{
int mid = l + r + 1 >> 1;
if (check_max(mid)) l = mid;
else r = mid - 1;
}
cout << r << endl;
return 0;
}
1