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13 lines
197 B
C++
13 lines
197 B
C++
#include<cstdio>
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int main()
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{
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int n,i,s,a;
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while(scanf("%d",&n),n)
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{
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s=0;
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while(n--){scanf("%d",&a);s+=a*a;}
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printf("%d\n",s);
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}
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return 0;
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}
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