leetcode第137题-Single Number II

#include<stdio.h>
#include<stdlib.h>

int singleNumber(int* nums, int numsSize)
{
	int count[32]={0};
	int i,j,number=0;
	for(i=0;i<numsSize;i++)
	{
		for(j=0;j<32;j++)
			count[j]+=((nums[i]&(1<<j))!=0);
	}
	for(i=0;i<32;i++)
	{
		if(count[i]%3!=0)
			number+=(1<<i);
	}
	return number;
}

int main()
{
	int n;
	int i,j=0;
	while(scanf("%d",&n)!=EOF)
	{
		int *nums=(int *)malloc(sizeof(int)*n);
		for(i=0;i<n;i++)
			scanf("%d",&nums[i]);
		j=singleNumber(nums, n);
		printf("%d\n",j);
	}
	return 0;
}