#include<stdio.h>  
#include<stdlib.h>  
int main() {
    int a[1005];
    int n, q,V;
    int x, y;
    int count=0;
    scanf("%d %d", &n, &q);
    scanf("%d", &V);
    for (int i = 1; i <= n; i++) {
        scanf("%d ", &a[i]);
    }
    for (int j = 1; j <= q; j++) {
        scanf("%d %d", &x, &y);
        a[x] = y;
        if (a[x] >= V) {
            count++;
        }
        else {
            continue;
        }
    }
    printf("%d\n", count);
    return 0;
}