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求大佬帮我看一下我的四叉线段树哪里写错了,样例都对,是WA#include <iostream>
#include <cstdio>
#include <cmath>
#include <string>
#include <cstring>
#include <algorithm>
#include <limits>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#define lowbit(x) ( x&(-x) )
#define pi 3.141592653589793
#define e 2.718281828459045
using namespace std;
typedef unsigned long long ull;
typedef long long ll;
const int maxN = 1024;
int Mem, N, op;
int tree[maxN*maxN<<2];
bool yezi[maxN*maxN<<2];
void buildTree(int rt, int xl, int yl, int xr, int yr)
{
if(xl == xr && yl == yr)
{
tree[rt] = Mem;
return;
}
int mid_x = (xl + xr)>>1, mid_y = (yl + yr)>>1;
buildTree((rt<<2)-2, xl, yl, mid_x, mid_y);
if(yl != yr) buildTree((rt<<2)-1, xl, mid_y+1, mid_x, yr);
else { tree[(rt<<2)-1]=0; yezi[(rt<<2)-1]=true; }
if(xl != xr) buildTree((rt<<2), mid_x+1, yl, xr, mid_y);
else { tree[(rt<<2)]=0; yezi[(rt<<2)]=true; }
if(xl!=xr && yl!=yr) buildTree((rt<<2)+1, mid_x+1, mid_y+1, xr, yr);
else { tree[(rt<<2)+1]=0; yezi[(rt<<2)+1]=true; }
tree[rt] = tree[(rt<<2)-2] + tree[(rt<<2)-1] + tree[(rt<<2)] + tree[(rt<<2)+1];
}
void update(int rt, int xl, int yl, int xr, int yr, int qx, int qy, int val)
{
if(yezi[rt]) return;
if(xl == xr && yl == yr) { tree[rt]+=val; return; }
int mid_x = (xl + xr)>>1, mid_y = (yl + yr)>>1;
if(qx<=mid_x && qy<=mid_y) update((rt<<2)-2, xl, yl, mid_x, mid_y, qx, qy, val);
else if(qx<=mid_x && qy>mid_y) update((rt<<2)-1, xl, mid_y+1, mid_x, yr, qx, qy, val);
else if(qx>mid_x && qy<=mid_y) update((rt<<2), mid_x+1, yl, xr, mid_y, qx, qy, val);
else if(qx>mid_x && qy>mid_y) update((rt<<2)+1, mid_x+1, mid_y+1, xr, yr, qx, qy, val);
tree[rt] = tree[(rt<<2)-2] + tree[(rt<<2)-1] + tree[(rt<<2)] + tree[(rt<<2)+1];
}
int query(int rt, int xl, int yl, int xr, int yr, int qlx, int qly, int qrx, int qry)
{
if(yezi[rt]) return 0;
if(qlx<=xl && qly<=yl && qrx>=xr && qry>=yr) return tree[rt];
int mid_x = (xl + xr)>>1, mid_y = (yl + yr)>>1;
int ans = 0;
if(qlx<=mid_x && qly<=mid_y) ans+=query((rt<<2)-2, xl, yl, mid_x, mid_y, qlx, qly, qrx, qry);
if(qlx<=mid_x && qry>mid_y) ans+=query((rt<<2)-1, xl, mid_y+1, mid_x, yr, qlx, qly, qrx, qry);
if(qrx>mid_x && qly<=mid_y) ans+=query((rt<<2), mid_x+1, yl, xr, mid_y, qlx, qly, qrx, qry);
if(qrx>mid_x && qly>mid_y) ans+=query((rt<<2)+1, mid_x+1, mid_y+1, xr, yr, qlx, qly, qrx, qry);
return ans;
}
int main()
{
while(scanf("%d%d", &Mem, &N)!=EOF)
{
memset(yezi, false, sizeof(yezi));
buildTree(1, 0, 0, N-1, N-1);
while(scanf("%d", &op) && op!=3)
{
if(op == 1)
{
int e1, e2, e3;
scanf("%d%d%d", &e1, &e2, &e3);
update(1, 0, 0, N-1, N-1, e1, e2, e3);
}
else
{
int e1, e2, e3, e4;
scanf("%d%d%d%d", &e1, &e2, &e3, &e4);
printf("%d\n", query(1, 0, 0, N-1, N-1, e1, e2, e3, e4));
}
}
}
return 0;
}
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