LeetCode - 27. Remove Element

27. Remove Element

Problem's Link

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[b]Mean:[/b]

移除数组中的指定元素.

[b]analyse:[/b]

略

[b]Time complexity: O(N)[/b]

[b]view code[/b]

/**
* -----------------------------------------------------------------
* Copyright (c) 2016 crazyacking.All rights reserved.
* -----------------------------------------------------------------
* Author: crazyacking
* Date : 2016-02-19-16.20
*/
#include <queue>
#include <cstdio>
#include <set>
#include <string>
#include <stack>
#include <cmath>
#include <climits>
#include <map>
#include <cstdlib>
#include <iostream>
#include <vector>
#include <algorithm>
#include <cstring>
using namespace std;
typedef long long(LL);
typedef unsigned long long(ULL);
const double eps(1e-8);

class Solution
{
public:
int removeElement(vector<int>& nums, int val)
{
int cnt=0;
for(int i=0;i<nums.size();++i)
if(nums[i]==val)
++cnt;
else
nums[i-cnt]=nums[i];
return (nums.size()-cnt);
}
};

int main()
{
Solution solution;
int n,val;
while(cin>>n>>val)
{
vector<int> ve;
for(int i=0;i<n;++i)
{
int tmp;
cin>>tmp;
ve.push_back(tmp);
}
cout<<solution.removeElement(ve,val)<<endl;
}
return 0;
}
/*

*/