45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#include <stdio.h>
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#include <string.h>
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#include <algorithm>
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using namespace std;
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char s[2010][2010];
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int dp[2010][2010];
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int main()
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{
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int test,n;
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scanf("%d",&test);
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while(test--)
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{
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scanf("%d",&n);
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for(int i = 0; i < n; i++)
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scanf("%s",s[i]);
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for(int i = 0; i < n; i++)
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{
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dp[0][i] = 1;
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dp[i][0] = 1;
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}
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int ans = -1,cnt = 0;
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for(int i = 1; i < n; i++)
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{
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for(int j = 1; j < n; j++)
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{
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if(s[i][j] != s[i-1][j] && s[i][j] != s[i][j-1] && s[i][j] == s[i-1][j-1])
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dp[i][j] = min(min(dp[i-1][j-1],dp[i-1][j]),dp[i][j-1])+1;
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else dp[i][j] = 1;
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if(s[i][j] == '1')
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ans = max(ans,dp[i][j]);
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}
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}
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for(int i = 0; i < n; i++)
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{
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for(int j = 0; j < n; j++)
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{
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if(dp[i][j] == ans && s[i][j] == '1')
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cnt++;
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}
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}
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printf("%d %d\n",ans,cnt);
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}
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return 0;
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}
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