Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.
Note:
You may assume that nums1 has enough space (size that is greater or equal to m + n) to hold additional elements from nums2. The number of elements initialized in nums1 and nums2 are m and n respectively.
合并数组。题意简单明确。
public class Solution { public void merge(int[] nums1, int m, int[] nums2, int n) { if( n == 0) return ; if( m == 0){ for( int i = 0;i<n;i++) nums1[i] = nums2[i]; return ; } for( int i = m+n-1,j = m-1,k = n-1;i>=0;i--){ if( j == -1){ for( ;i>=0;i--,k--) nums1[i] = nums2[k]; break; }else if( k == -1){ break; } if( nums1[j] >= nums2[k] ){ nums1[i] = nums1[j]; j--; } else{ nums1[i] = nums2[k]; k--; } } } }