查找数组中出现次数超过一半的数

int majorityElement(vector<int>& nums) 

{

map<int,int> map_num;

for(int i=0;i<nums.size()-1;i++)

{

map_num[nums[i]]++;

}

map<int,int>::iterator p;

int max=0;

int element;

while(p!=map.end())

{

if(p->second>max)

{

 max=p->second;

element=p->first;

}

}

return element;

}

class Solution {
public:
int majorityElement(vector<int>& nums) {

int size=nums.size()/2;
int element;
while(nums.size()!=0)
{
int count=1;
for(int j=nums.size()-2;j>=0;j--)
{
if(nums[j]==nums[nums.size()-1])
{
nums.erase(nums.begin()+j);
count++;
}
}
if (count>size)
{
element=nums[nums.size()-1];
}
nums.erase(nums.begin()+nums.size()-1);
}
return element;
}
};

原文地址:https://www.cnblogs.com/mmziscoming/p/5777179.html