HEU 5009 Arrangement
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/**************************************
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Problem: HEU 5009 Arrangement
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Time: 0.0840 s
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Memory: 240 k
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Accepted Time: 2009-03-29 18:41:56
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Tips: 递归
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**************************************/
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#include <stdio.h>
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#include <string.h>
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int table[26],count;
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char b[30];
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void fun()
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{
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int flag=1;
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for(int i=0;i<26;i++)
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{
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if(table[i]>0)
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{
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flag=0;
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b[count++]=i+'A';
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table[i]--;
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fun();
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table[i]++;
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count--;
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}
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}
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if(flag)printf("%s\n",b);
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}
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int main()
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{
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int n,i,j;
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scanf("%d",&n);
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for(i=1;i<=n;i++)
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{
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char a[30];
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memset(table,0,sizeof(table));
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count=0;
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scanf("%s",a);
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for(j=0;a[j]!=0;j++)
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table[a[j]-'A']++;
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b[j]=0;
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printf("Case %d:\n",i);
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fun();
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}
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return 0;
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}
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