标签:style blog color java io strong ar for 2014
[ 问题: ]
Given two sorted integer arrays A and B, merge B into A as one sorted array.
直译:给定两个排好序的整形数组,将数组B合并到数组A,形成一个新的数组。
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 and n respectively.
[ 解法: ]
题解:从结尾开始归并,不会覆盖元素又能满足题意。
参数m:数组m位置后面元素会被数组B中元素替换
参数n:从第一个开始,将数组B中n个元素会被合并到数组A
public class Solution { public static void main(String[] args) { int[] A = { 1, 2, 4, 5, 6, 8 }; int[] B = { 3, 9, 10 }; new Solution().merge(A, 3, B, 2); // 1 2 3 4 9 8 } public void merge(int A[], int m, int B[], int n) { int i, j, k; for (i = m - 1, j = n - 1, k = m + n - 1; k >= 0; --k) { if (i >= 0 && (j < 0 || A[i] > B[j])) { A[k] = A[i--]; } else { A[k] = B[j--]; } } } }
【LeetCode】- Merge Sorted Array (合并有序数组)
标签:style blog color java io strong ar for 2014
原文地址:http://blog.csdn.net/zdp072/article/details/38894629