oj.uz

Submission #5415

# Submission time Handle Problem Language Result Execution time Memory
5415 2014-04-30T14:24:18 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];

inline 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 4 ms 19572 KB Output is correct
9 Correct 12 ms 19572 KB Output is correct
10 Correct 36 ms 19572 KB Output is correct
11 Correct 52 ms 19572 KB Output is correct
12 Correct 40 ms 19572 KB Output is correct
13 Correct 40 ms 19572 KB Output is correct
14 Correct 176 ms 19572 KB Output is correct
15 Correct 164 ms 19572 KB Output is correct
16 Correct 268 ms 19572 KB Output is correct
17 Correct 104 ms 19572 KB Output is correct
18 Correct 704 ms 19572 KB Output is correct
19 Correct 552 ms 19572 KB Output is correct
20 Correct 1388 ms 19572 KB Output is correct
21 Correct 1636 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 932 ms 19572 KB Output is correct
25 Correct 704 ms 19572 KB Output is correct