253B. Physics Practical

B. Physics Practical：题目

太简单的题目了，和dp没啥关系

#include <bits/stdc++.h>
using namespace std;
#define int long long
vector<int> a((int)6e5);
vector<int> b((int)6e5), c[(int)6e5];
const int mod = 1e9 + 7;
signed main()
{freopen("input.txt","r",stdin);freopen("output.txt","w",stdout);int n;cin>>n;for (int i=0;i<n;i++) cin>>a[i];sort(a.begin(),a.begin()+n);int res = 0;for (int i=0;i<n;i++){int k = lower_bound(a.begin(),a.begin()+n,a[i]*2+1)-a.begin();res = max(res,(int)(k-i));}cout<<n-res<<endl;
}

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