CF-835C
C. Star skytime limit per test2 seconds
memory limit per test256 megabytes
inputstandard input
outputstandard output
The Cartesian coordinate system is set in the sky. There you can see n stars, the i-th has coordinates (xi, yi), 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 (x1i, y1i) and the upper right — (x2i, y2i). 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.
InputThe first line contains three integers n, q, c (1 ≤ n, q ≤ 105, 1 ≤ 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 xi, yi, si (1 ≤ xi, yi ≤ 100, 0 ≤ 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 ti, x1i, y1i, x2i, y2i (0 ≤ ti ≤ 109, 1 ≤ x1i < x2i ≤ 100, 1 ≤ y1i < y2i ≤ 100) — the moment of the i-th view and the coordinates of the viewed rectangle.
OutputFor each view print the total brightness of the viewed stars.
Examplesinput2 3 3
1 1 1
3 2 0
2 1 1 2 2
0 2 1 4 5
5 1 1 5 5output3
0
3input3 4 5
1 1 2
2 3 0
3 3 1
0 1 1 100 100
1 2 2 4 4
2 2 1 4 7
1 50 50 51 51output3
3
5
0NoteLet'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.
求出所有点的前缀和,之后对于每个t,计算sum[t][x2][y2]-sum[t][x1-1][y2]-sum[t][x2][y1-1]+sum[t][x1-1][y1-1]并输出。
AC代码:
#include<bits/stdc++.h>
using namespace std; const int MAXN=; int sum[][MAXN][MAXN]; int main(){
ios::sync_with_stdio(false);
int n,q,c;
cin>>n>>q>>c;
for(int i=;i<n;i++){
int x,y,s;
cin>>x>>y>>s;
for(int t=;t<=c;t++){
sum[t][x][y]+=(s+t)%(c+);
}
}
for(int i=;i<=c;i++){
for(int x=;x<MAXN;x++){
for(int y=;y<MAXN;y++){
sum[i][x][y]+=sum[i][x-][y]+sum[i][x][y-]-sum[i][x-][y-];
}
}
}
for(int i=;i<q;i++){
int t,x1,y1,x2,y2;
cin>>t>>x1>>y1>>x2>>y2;
t%=(c+);
cout<<sum[t][x2][y2]-sum[t][x1-][y2]-sum[t][x2][y1-]+sum[t][x1-][y1-]<<endl;;
}
return ;
}
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