[To] lay the carpet

This blog post for the migration, written on November 3, 2014, does not represent my current views and views. Original address: http://blog.sina.com.cn/s/blog_6022c4720102ves6.html

Describe

In preparation for a unique award ceremony, the organizer paved rectangular carpets in a rectangular area of the venue (which can be seen as the first quadrant of a planar Cartesian coordinate system). A total of n carpets, numbered from 1 to N. The carpets are now laid out in the order of the numbers from small to large, and the carpets on the front floor are covered in the carpet. After the carpet is laid, the organizer wants to know the number of the top carpet that covers a point on the ground. Note: The points on the rectangular carpet boundary and the four vertices are also covered by carpets.

Input format

Enter a total n+2 line.

The first line, an integer n (0 <= N <= 10,000), indicates a total of n carpets.

In the next n rows, the I+1 line represents the information for the number I carpet, containing four positive integers a,b,g,k (0 <= A, B, G, K & lt;= 100,000), separated by a space between each two integers, representing the coordinates of the lower left corner of the carpet (A, b) and the length of the carpet in the x-axis and y-axis direction.

The n+2 line contains two positive integers x and y, representing the coordinates (x, y) of the point of the ground being asked.

Output format

Outputs a total of 1 lines, an integer representing the number of the carpet being asked for, or 1 if the carpet is not covered.

Sample Example

Sample input

3 1 0 2 3 0 2 3 3 2 1 3 3 2 2

Sample output

3

Ideas

Direct simulation of Thiophene!

Label

Simulation

Code

#include <cstdio>

int n,a[10005],b[10005],g[10005],k[10005],ans,x,y;

int main ()

{

int i;

scanf ("%d", &n);

for (i=1;i<=n;i++)

scanf ("%d%d%d", &a[i],&b[i],&g[i],&k[i]);

scanf ("%d%d", &x,&y);

for (i=1;i<=n;i++) if (X>=a[i] && x<=a[i]+g[i] && y>=b[i] && y<=b[i]+k[i]) ans=i;

if (ans==0) printf ("-1"); else printf ("%d", ans);

}

" 20141021 yards End Code "

[To] lay the carpet