Codeforces Round #427 (Div. 2)

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C. Star sky
time limit per test
2 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output

The Cartesian coordinate system is set in the sky. There you can see n stars, the i-th has coordinates (xiyi), a maximum brightness c, equal for all stars, and an initial brightness si (0 ≤ si ≤ c).

Over time the stars twinkle. At moment 0 the i-th star has brightness si. Let at moment t some star has brightness x. Then at moment (t + 1) this star will have brightness x + 1, if x + 1 ≤ c, and 0, otherwise.

You want to look at the sky q times. In the i-th time you will look at the moment ti and you will see a rectangle with sides parallel to the coordinate axes, the lower left corner has coordinates (x1iy1i) and the upper right — (x2iy2i). For each view, you want to know the total brightness of the stars lying in the viewed rectangle.

A star lies in a rectangle if it lies on its border or lies strictly inside it.

Input

The first line contains three integers nqc (1 ≤ n, q ≤ 1051 ≤ c ≤ 10) — the number of the stars, the number of the views and the maximum brightness of the stars.

The next n lines contain the stars description. The i-th from these lines contains three integers xiyisi (1 ≤ xi, yi ≤ 1000 ≤ si ≤ c ≤ 10) — the coordinates of i-th star and its initial brightness.

The next q lines contain the views description. The i-th from these lines contains five integers tix1iy1ix2iy2i (0 ≤ ti ≤ 1091 ≤ x1i < x2i ≤ 1001 ≤ y1i < y2i ≤ 100) — the moment of the i-th view and the coordinates of the viewed rectangle.

Output

For each view print the total brightness of the viewed stars.

Examples
input
2 3 31 1 13 2 02 1 1 2 20 2 1 4 55 1 1 5 5
output
303
input
3 4 51 1 22 3 03 3 10 1 1 100 1001 2 2 4 42 2 1 4 71 50 50 51 51
output
3350
Note

Let's consider the first example.

At the first view, you can see only the first star. At moment 2 its brightness is 3, so the answer is 3.

At the second view, you can see only the second star. At moment 0 its brightness is 0, so the answer is 0.

At the third view, you can see both stars. At moment 5 brightness of the first is 2, and brightness of the second is 1, so the answer is 3.


题意:有n颗星星,每颗星星有各自的初始位置(xi,yi)以及初始亮度 si ,所有星星的最大亮度均为 c ,星星亮度每秒+1,当亮度大于 c 时变为 0 ,求第 t 秒时一个矩形区域内所有的星星的亮度总和。

因为星星的亮度变化是周期性的,所以任一区域内的星星亮度总和也是周期性的,周期长度为 c+1 ,(x1,y1)到(x2,y2)矩形区域内星星的亮度总和可以由下图所示的大矩形减小矩形得到

                     

所以我们只要把0-c秒内所有的(0,0)到(x,y)内所包含的所有星星的亮度总和求出,输出答案的时候加加减减一下就行了。

刚开始以为一个坐标只有一个星星一直错

#include<iostream>#include<string.h>#include<stdio.h>using namespace std;int n,q,s,sum[15][111][111];//sum[t][x][y]代表在t秒时(0,0)到(x,y)矩形内所有星星的亮度总和int main(){    while(~scanf("%d%d%d",&n,&q,&s))    {        memset(sum,0,sizeof sum);        for(int i=0;i<n;i++)        {            int a,b,c;            scanf("%d%d%d",&a,&b,&c);            for(int j=0;j<=10;j++)                sum[j][a][b] += (c + j) % (s+1);//一个位置可以出现多个星星        }        for(int i=0;i<=10;i++)            for(int j=1;j<=100;j++)                for(int k=1;k<=100;k++)                    sum[i][j][k] += sum[i][j-1][k] + sum[i][j][k-1] - sum[i][j-1][k-1];        while(q--)        {            int t,x1,x2,y1,y2;            scanf("%d%d%d%d%d",&t,&x1,&y1,&x2,&y2);            t %= (s+1);            int ans = sum[t][x2][y2] + sum[t][x1-1][y1-1] - sum[t][x1-1][y2] - sum[t][x2][y1-1];            printf("%d\n",ans);        }    }    return 0;}