题意:



解法:





时间复杂度:

std:

#include <bits/stdc++.h>
using namespace std;
#define ll long long 
const int maxn = 500005;
struct node{
    int x;
    ll y;
}a[maxn];
ll b[maxn];
int main()
{
    int t,n,m,x;
    scanf("%d",&t);
    while(t--){
        memset(b,0,sizeof(b));
        scanf("%d%d",&n,&m);
        for(int i=1;i<=n;i++)scanf("%d%lld",&a[i].x,&a[i].y);
        for(int i=1;i<=m;i++)scanf("%d",&x),b[x]++;
        for(int i=n;i>=1;i--)b[i] += b[i+1] , a[i].y += b[i];
        int cnt = 0;
        ll max0 = 0, max1 = 0;
        for(int i=n;i>=1;i--){
            if(a[i].x == 0){
                max0 = max(max0 , a[i].y);
                if(max1 > a[i].y)
                    cnt++;
            }
            else{
                max1 = max(max1 , a[i].y);
                if(max0 > a[i].y)
                    cnt++;
            }
        }
        printf("%d\n",n - cnt);
    }
    return 0;
}