HDU 5480 Conturbatio

#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
using namespace std;

const int maxn=100000+10;
int R[maxn],C[maxn];
int sumR[maxn],sumC[maxn];

int main()
{
    int T;
    scanf("%d",&T);
    while(T--)
    {
        int n,m,K,Q;
        memset(R,0,sizeof R);
        memset(C,0,sizeof C);
        memset(sumR,0,sizeof sumR);
        memset(sumC,0,sizeof sumC);
        scanf("%d%d%d%d",&n,&m,&K,&Q);

        for(int i=1;i<=K;i++)
        {
            int x,y;
            scanf("%d%d",&x,&y);
            R[x]=1;
            C[y]=1;
        }
        sumR[1]=R[1];
        for(int i=2;i<=n;i++) sumR[i]=sumR[i-1]+R[i];

        sumC[1]=C[1];
        for(int i=2;i<=m;i++) sumC[i]=sumC[i-1]+C[i];

        for(int i=1;i<=Q;i++)
        {
            int x1,y1,x2,y2;
            scanf("%d%d%d%d",&x1,&y1,&x2,&y2);
            if(sumR[x2]-sumR[x1-1]==x2-(x1-1)||sumC[y2]-sumC[y1-1]==y2-(y1-1)) printf("Yes\n");
            else printf("No\n");
        }
    }

    return 0;
}