nztao · 发布于 2023-07-17 · 浏览 622 回复 0

#include <bits/stdc++.h>
using namespace std;
long long n,answer;
int main()
{
	cin>>n;
	if (n%2){
		answer=(n+1)/2;
		printf("%d",answer);
	}else{
		answer=n/2;
		printf("%d",answer);	
	}
    return 0;
}