oj.uz

Submission #5413

# Submission time Handle Problem Language Result Execution time Memory
5413 2014-04-30T14:19:36 Z gs12006 Luxury burrow (IZhO13_burrow) C++
92 / 100
 2000 ms 19572 KB 
#include <stdio.h>
#include <algorithm>
using namespace std;

int a[1100][1100];
int s[1100][2];
int d[1100][1100];
int ans[1100][1100];
int n,m;
int nl[1100000];

int f(int x)
{
	int i,j,t,max=0;
	for (i=0;i<n;i++) for (j=0;j<m;j++) ans[i][j]=d[i][j]=0;
	for (i=0;i<m;i++) if (a[0][i]>=x) d[0][i]=1;
	for (i=0;i<m;i++) for (j=1;j<n;j++) if(a[j][i]>=x) d[j][i]=d[j-1][i]+1;
	for (i=0;i<n;i++)
	{
		for (j=0;j<m;j++) if (d[i][j]>0)
		{
			t=0;
			for (;d[i][j]!=0&&j<m;j++,t++)
			{
				for (;t>0&&s[t-1][0]>d[i][j];t--) ans[i][s[t-1][1]]+=j-s[t-1][1];
				s[t][0]=d[i][j];
				s[t][1]=j;
			}
			for (;t>0;t--) ans[i][s[t-1][1]]+=j-s[t-1][1];
		}
		for (j=m-1;j>=0;j--) if (d[i][j]>0)
		{
			t=0;
			for (;d[i][j]!=0&&j>=0;j--,t++)
			{
				for (;t>0&&s[t-1][0]>d[i][j];t--) ans[i][s[t-1][1]]+=s[t-1][1]-j;
				s[t][0]=d[i][j];
				s[t][1]=j;
			}
			for (;t>0;t--) ans[i][s[t-1][1]]+=s[t-1][1]-j;
		}
		for (j=0;j<m;j++) if (ans[i][j]>0) ans[i][j]--;
		for (j=0;j<m;j++) if (ans[i][j]>0) ans[i][j]*=d[i][j];
	}
	for (i=0;i<n;i++) for (j=0;j<m;j++) if (ans[i][j]>max) max=ans[i][j];
	return max;
}

int main()
{
	int i,j,k,minn=1<<30,maxn=0,midn,tt,rl;
	scanf("%d %d %d",&n,&m,&k);
	rl=n*m;
	for (i=0;i<n;i++) for (j=0;j<m;j++)
	{
		scanf("%d",&a[i][j]);
		nl[m*i+j]=a[i][j];
	}
	sort(nl,nl+n*m);
	for (i=0;i<n*m-1;i++)
	{
		if (nl[i]==nl[i+1])
		{
			nl[i]=1<<30;
			rl--;
		}
	}
	sort(nl,nl+n*m);
	minn=0;
	maxn=rl-1;
	while (1)
	{
		if (maxn<=minn+1)
		{
			tt=f(nl[maxn]);
			if (tt>=k) printf("%d %d",nl[maxn],tt);
			else printf("%d %d",nl[minn],f(nl[minn]));
			break;
		}
		midn=(maxn+minn)/2;
		tt=f(nl[midn]);
		if (tt>=k) minn=midn;
		else maxn=midn;
	}
}

Subtask #1
92.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 19572 KB Output is correct
2 Correct 0 ms 19572 KB Output is correct
3 Correct 0 ms 19572 KB Output is correct
4 Correct 0 ms 19572 KB Output is correct
5 Correct 0 ms 19572 KB Output is correct
6 Correct 0 ms 19572 KB Output is correct
7 Correct 0 ms 19572 KB Output is correct
8 Correct 0 ms 19572 KB Output is correct
9 Correct 8 ms 19572 KB Output is correct
10 Correct 36 ms 19572 KB Output is correct
11 Correct 64 ms 19572 KB Output is correct
12 Correct 40 ms 19572 KB Output is correct
13 Correct 44 ms 19572 KB Output is correct
14 Correct 172 ms 19572 KB Output is correct
15 Correct 160 ms 19572 KB Output is correct
16 Correct 276 ms 19572 KB Output is correct
17 Correct 112 ms 19572 KB Output is correct
18 Correct 736 ms 19572 KB Output is correct
19 Correct 552 ms 19572 KB Output is correct
20 Correct 1412 ms 19572 KB Output is correct
21 Correct 1648 ms 19572 KB Output is correct
22 Execution timed out 2000 ms 19572 KB Program timed out
23 Execution timed out 2000 ms 19572 KB Program timed out
24 Correct 944 ms 19572 KB Output is correct
25 Correct 708 ms 19572 KB Output is correct