数组中出现次数超过一半的数字

class Solution {
public:
int MoreThanHalfNum_Solution(vector<int> numbers) {
if(numbers.empty())return 0;
int time=0,num=0;
for(int i=0;i<numbers.size();i++)
{
if(i==0)
{
num=numbers[i];
time++;
}
else
{
if(time==0)
num=numbers[i];
if(num==numbers[i])
time++;
else
time--;

}
}
time=0;
for(int i=0;i<numbers.size();i++)
{
if(num==numbers[i])
time++;
}
if(time*2<=numbers.size())
return 0;
else
return num;
}
};