leetcode[88]Merge Sorted Array
Given two sorted integer arrays A and B, merge B into A as one sorted array.
Note:
You may assume that A has enough space (size that is greater or equal to m + n) to hold additional elements from B. The number of elements initialized in A and B are m andn respectively.
class Solution { public: void merge(int A[], int m, int B[], int n) { int index=m+n-1; int indexA=m-1; int indexB=n-1; while(indexA>=0&&indexB>=0) { if(A[indexA]>=B[indexB]) { A[index--]=A[indexA--]; } else { A[index--]=B[indexB--]; } } while(indexA>=0) { A[index--]=A[indexA--]; } while(indexB>=0) { A[index--]=B[indexB--]; } return; } };