problem
solution1:
class Solution { public: vector<int> sortArrayByParityII(vector<int>& A) { int n = A.size(); for(int i=0, j=1; i<n, j<n; ) { while(i<n && A[i]%2==0) i += 2; while(j<n && A[j]%2==1) j += 2; if(j<n) swap(A[i], A[j]); } return A; } };
参考
1. Leetcode_easy_922. Sort Array By Parity II;
2. discuss;
完