求助

#include<iostream>
#include<cmath>
#include<cstdio>
#include<cstring>
#include<vector>
#include<queue>
using namespace std;
#define ll long long
#define rt return
#define MAXN 1000007
ll a[MAXN],x[MAXN],y[MAXN];
int main(){
	ll n,q,ans=0;
	cin>>n>>q;
	ll v;
	cin>>v;
	for(int i=0;i<n;i++){
		cin>>a[i];
	}
	for(int i=0;i<q;i++){
		cin>>x[i]>>y[i];
		a[x[i]]=y[i];
	}
	for(int i=0;i<n;i++){
		if(a[i]>=v) ans++;
	}
	cout<<ans;
	rt 0;
}