LeetCode题解之Flipping an Image

1、题目描述

2、题目分析

使用C++的迭代器

3、代码

vector<vector<int>> flipAndInvertImage(vector<vector<int>>& A) {
        for( vector<vector<int>>::iterator it = A.begin() ; it != A.end() ; it++ )
        {
            for(auto it_b = (*it).begin() ,it_e = (*it).end()-1 ; it_b <= it_e ; it_b++ ,it_e-- )
            {
                int tmp = *it_b;
                *it_b = *it_e;
                *it_e = tmp;
                
                if( it_b != it_e )
                {
                   *it_b = ( *it_b == 1) ? 0 : 1;
                   *it_e = ( *it_e == 1) ? 0 : 1;  
                }else{
                    *it_b = ( *it_b == 1) ? 0:1 ;
                }
            }
        }
        return A;
        
    }