题意:在坐标系上有一些星星,坐标大于1小于100,每颗星星初始亮度为si,每过1s亮度+1,当亮度>c的时候变为0,c<=10,q个询问,求每次在给定的矩形区域内所有星星的亮度
思路:处理出每一个星星每个事件的亮度,然后再对应到坐标(一个坐标可能有多颗星星),处理出x或y轴的前缀和,每次询问对区域内的亮度求和就是
AC代码:
#include "iostream" #include "string.h" #include "stack" #include "queue" #include "string" #include "vector" #include "set" #include "map" #include "algorithm" #include "stdio.h" #include "math.h" #pragma comment(linker, "/STACK:102400000,102400000") #define ll long long #define endl (" ") #define bug(x) cout<<x<<" "<<"UUUUU"<<endl; #define mem(a,x) memset(a,x,sizeof(a)) #define mp(x,y) make_pair(x,y) #define pb(x) push_back(x) #define ft (frist) #define sd (second) #define lrt (rt<<1) #define rrt (rt<<1|1) using namespace std; const long long INF = 1e18+1LL; const int inf = 1e9+1e8; const int N=1e5+100; const ll mod=1e9+7; ///CCCC int n,q,c; int s[15][105][105]; struct Node{ int x,y,s; }; Node ar[15][N]; int main(){ ios::sync_with_stdio(false),cin.tie(0),cout.tie(0); cin>>n>>q>>c; int x,y,z; for(int i=1; i<=n; ++i){ cin>>x>>y>>z; ar[0][i].x=x, ar[0][i].y=y, ar[0][i].s=z; } for(int i=1; i<=c; ++i){ for(int j=1; j<=n; ++j){ ar[i][j]=ar[0][j]; } } for(int i=1; i<=c; ++i){ for(int j=1; j<=n; ++j){ ar[i][j].s+=i; ar[i][j].s%=c+1; } } for(int i=0; i<=c; ++i){ for(int j=1; j<=n; ++j){ x=ar[i][j].x, y=ar[i][j].y; s[i][x][y]+=ar[i][j].s; } } for(int i=0; i<=c; ++i){ for(int j=1; j<=100; ++j){ for(int k=2; k<=100; ++k){ s[i][j][k]+=s[i][j][k-1]; } } } int x1,y1,x2,y2,t; while(q--){ cin>>t>>x1>>y1>>x2>>y2; t%=c+1; ll ans=0; for(int i=x1; i<=x2; ++i){ ans += s[t][i][y2]-s[t][i][y1-1]; } cout<<ans<<endl; } return 0; }