tj

#include<bits/stdc++.h>
using namespace std;

int main(){
int m,n,a[1001];
cin>>n;
for(int i=1;i<=n;i++){
cin>>a[i];
}
cin>>m;
int l=1,r=n,c=0;
while(l<=r){
int mid=(l+r)/2;
if(a[mid]>m){
r=mid-1;
c=mid;
}else{
l=mid+1;
}
}
cout<<c;
return 0;
}