题解

#include<iostream>
#include<algorithm>
using namespace std;
int a[110];
int main(){
    int n,m;
    cin>>n;
    for(int i=1;i<=n;i++){cin>>a[i];}
    cin>>m;
    cout<<(lower_bound(a+1,a+n+1,m)-a)<<endl;
	return 0;    
}