33 lines
706 B
C++
33 lines
706 B
C++
#include<cstdio>
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#include<cstring>
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const int maxn=15;
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char grid[maxn][maxn];
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int T,n;
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int main()
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{
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#ifdef local
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freopen("pro.in","r",stdin);
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#endif
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scanf("%d",&T);
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for(int kase=1;kase<=T;kase++)
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{
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scanf("%d",&n);
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for(int i=0;i<n;i++) scanf("%s",grid[i]);
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for(int i=0;i<n;i++)
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for(int j=0;j<n;j++)
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if(grid[i][j]=='.')
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for(char ch='A';ch<='Z';ch++)
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{
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bool ok=true;
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if(i>0&&grid[i-1][j]==ch) ok=false;
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if(i<n-1&&grid[i+1][j]==ch) ok=false;
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if(j>0&&grid[i][j-1]==ch) ok=false;
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if(j<n-1&&grid[i][j+1]==ch) ok=false;
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if(ok) { grid[i][j]=ch; break; }
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}
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printf("Case %d:\n",kase);
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for(int i=0;i<n;i++) printf("%s\n",grid[i]);
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}
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return 0;
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}
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