32 lines
423 B
C++
32 lines
423 B
C++
#include<cstdio>
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using namespace std;
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int hash_(char n)
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{
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switch(n)
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{
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case 'A':return 0;
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case 'T':return 1;
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case 'G':return 2;
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case 'C':return 3;
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}
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}
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char _hash(int n)
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{
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switch(n)
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{
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case 0:return 'A';
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case 1:return 'T';
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case 2:return 'G';
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case 3:return 'C';
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}
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}
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int main()
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{
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int pei[4]={1,0,3,2};
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char a;
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while(a=getchar(),a!='\n')
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printf("%c",_hash(pei[hash_(a)]));
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printf("\n");
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return 0;
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}
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