30 lines
543 B
C++
30 lines
543 B
C++
#include<stdio.h>
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int main()
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{
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int a[105];
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int n,i,flag,sum,k;
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while(scanf("%d",&n)!=EOF)
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{
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if(n==0)
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break;
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for(i=0,sum=0;i<n;i++)
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{
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scanf("%d",&a[i]);
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sum=sum^a[i];
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}
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if(sum==0)
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{
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printf("0\n");
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continue;
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}
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for(i=0,flag=0;i<n;i++)
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{
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k=sum^a[i];
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if(k<a[i])
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flag++;
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}
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printf("%d\n",flag);
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}
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return 0;
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}
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