Leetcode_189 Rotate Array

Rotate an array of n elements to the right by k steps.

For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4].

#include<stdio.h>void reverse(int *nums,int start,int end){int t;while(start<end){t=*(nums+end-1);*(nums+end-1)=*(nums+start);*(nums+start)=t;start++;end--;}}void rotate(int *nums,int numsSize,int k){k=k%(numsSize);reverse(nums,0,numsSize-k);reverse(nums,numsSize-k,numsSize);reverse(nums,0,numsSize);}int main(void){int a[]={1,2,3,4,5,6,7};int i;rotate(a,7,3);for(i=0;i<7;i++){printf("%d\n",a[i]);}}