OJ-Problems-Source/HDOJ/2888_autoAC.cpp
2016-08-24 18:25:36 +08:00

61 lines
1.8 KiB
C++

#include <stdio.h>
#include <algorithm>
#include <iostream>
#include <string.h>
using namespace std;
int val[310][310];
int dp[310][310][9][9];
int mm[310];
void initRMQ(int n,int m)
{
for(int i = 1;i <= n;i++)
for(int j = 1;j <= m;j++)
dp[i][j][0][0] = val[i][j];
for(int ii = 0; ii <= mm[n]; ii++)
for(int jj = 0; jj <= mm[m]; jj++)
if(ii+jj)
for(int i = 1; i + (1<<ii) - 1 <= n;i++)
for(int j = 1; j + (1<<jj) - 1 <= m;j++)
{
if(ii)dp[i][j][ii][jj] = max(dp[i][j][ii-1][jj],dp[i+(1<<(ii-1))][j][ii-1][jj]);
else dp[i][j][ii][jj] = max(dp[i][j][ii][jj-1],dp[i][j+(1<<(jj-1))][ii][jj-1]);
}
}
int rmq(int x1,int y1,int x2,int y2)
{
int k1 = mm[x2-x1+1];
int k2 = mm[y2-y1+1];
x2 = x2 - (1<<k1) + 1;
y2 = y2 - (1<<k2) + 1;
return max(max(dp[x1][y1][k1][k2],dp[x1][y2][k1][k2]),max(dp[x2][y1][k1][k2],dp[x2][y2][k1][k2]));
}
int main()
{
mm[0] = -1;
for(int i = 1;i <= 305;i++)
mm[i] = ((i&(i-1))==0)?mm[i-1]+1:mm[i-1];
int n,m;
int Q;
int r1,c1,r2,c2;
while(scanf("%d%d",&n,&m) == 2)
{
for(int i = 1;i <= n;i++)
for(int j = 1;j <= m;j++)
scanf("%d",&val[i][j]);
initRMQ(n,m);
scanf("%d",&Q);
while(Q--)
{
scanf("%d%d%d%d",&r1,&c1,&r2,&c2);
if(r1 > r2)swap(r1,r2);
if(c1 > c2)swap(c1,c2);
int tmp = rmq(r1,c1,r2,c2);
printf("%d ",tmp);
if(tmp == val[r1][c1] || tmp == val[r1][c2] || tmp == val[r2][c1] || tmp == val[r2][c2])
printf("yes\n");
else printf("no\n");
}
}
return 0;
}