P1003 铺地毯

P1003 铺地毯 - 洛谷 | 计算机科学教育新生态 https://www.luogu.org/problem/P1003

代码1.

#include
#include
#define MAX 20010

using namespace std;

int N,i,a,b,c,d,j,k,x,y;
	 int s[MAX][MAX];
int main()
{
	
   cin>>N;
   for(i=1;i<=N;i++)
   {
	   cin>>a>>b>>c>>d;
	   s[a][b]=i;
	   for(j=0;j<=c;j++)
		   for(k=0;k<=d;k++)
		   {
			   s[a+j][b+k]=i;
		   }
   }
   cin>>x>>y;
   if(s[x][y]==0) cout<<-1<<endl;
   else 
	   cout<<s[x][y]<<endl;
   return 0;


}



## 代码2.

```cpp
#include
#include
#include

using namespace std;
int a[10010],b[10010],c[10010],d[10010],N,i,x,y;
int main()
{
	
	cin>>N;
	for(i=1;i<=N;i++)
	{
		cin>>a[i]>>b[i]>>c[i]>>d[i];
	}
	cin>>x>>y;
	for(i=N;i>0;i--)
	{
		if(x>=a[i]&&x<=a[i]+c[i]&&y>=b[i]&&y<=b[i]+d[i])
		{
			cout<<i<<endl;  return 0;
		}
	}
	cout<<-1<<endl;
	return 0;
}