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23 lines
471 B
C++
23 lines
471 B
C++
#include <cstdio>
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int n,ans;
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inline int num2stk(int x)
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{
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const static int H[]= {6,2,5,5,4,5,6,3,7,6};
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int ret=0;
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if(x==0) ret=6;
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else while(x) ret+=H[x%10],x/=10;
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return ret;
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}
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int main()
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{
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scanf("%d",&n);
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n-=4;
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if(n>0)
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for(int i=0; i<=1000; i++)
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for(int j=0; j<=1000; j++)
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if(num2stk(i)+num2stk(j)+num2stk(i+j)==n)
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ans++;
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printf("%d",ans);
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return 0;
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}
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