s^=a[i];什么意思 C语言#includeint a[101];int main(){int m,s,i;while(scanf("%d",&m) && m){s = 0;for(i = 0;i < m;i++){scanf("%d",&(a[i]));s ^= a[i];}if(s == 0)printf("0\n");else{int cnt = 0;for(i = 0;i < m;i++){s ^= a[i]; //选一堆if (a[i] > s)
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