# Leet Code: Rotate Array C++ Python || JavaScript || Java solution:

Given an array, rotate the array to the right by `k` steps, where `k` is non-negative.

Example 1:

```Input: nums = [1,2,3,4,5,6,7], k = 3
Output: [5,6,7,1,2,3,4]
Explanation:
rotate 1 steps to the right: [7,1,2,3,4,5,6]
rotate 2 steps to the right: [6,7,1,2,3,4,5]
rotate 3 steps to the right: [5,6,7,1,2,3,4]
```

Example 2:

```Input: nums = [-1,-100,3,99], k = 2
Output: [3,99,-1,-100]
Explanation:
rotate 1 steps to the right: [99,-1,-100,3]
rotate 2 steps to the right: [3,99,-1,-100]
```

Constraints:

• `1 <= nums.length <= 105`
• `-231 <= nums[i] <= 231 - 1`
• `0 <= k <= 105`

• Try to come up with as many solutions as you can. There are at least three different ways to solve this problem.
• Could you do it in-place with `O(1)` extra space?

## C++ Solution :

``````//solution BY Nilesh Vishnu Raut ...Codewithnilesh

#include <bits/stdc++.h>
using namespace std;

int main() {
string arr[]={"nilesh" ,"Raut" , "nilesh" ,"Raut" };
unordered_map<string,int>m;
for(int i=0;i<5;i++){
m[arr[i]]++;
}

int max=0;
string win;

for(auto x:m){
if(x.second>max){
max=x.second;
win=x.first;

}
else if(max==x.second) {
if(x.first<win){
win=x.first;
}
}

}
cout<<win;
return 0;
}``````

## Java Solution :

``````class Solution {
public void rotate(int[] nums, int k) {
if(k > nums.length){
k=k%nums.length;
}

int[] result=new int[nums.length];
int j=0;
for(int i=k;i<nums.length;i++){
result[i]=nums[j];
j++;
}

for(int i=0;i<k;i++){
result[i]=nums[j];
j++;

}
System.arraycopy( result, 0, nums, 0, nums.length );
}
}``````

## Python Solution :

``````class Solution(object):
def rotate(self, nums, k):
"""
:type nums: List[int]
:type k: int
:rtype: None Do not return anything, modify nums in-place instead.
"""
def reverse(a,l,h):
if (l>=h):
return
temp=a[l]
a[l]=a[h]
a[h]=temp
reverse(a,l+1,h-1)
if k>len(nums):
k=k%len(nums)
reverse(nums,0,len(nums)-1)
reverse(nums,0,k-1)
reverse(nums,k,len(nums)-1)`````` I am Nilesh,3+ years Exp of SEO, content writing, and keyword research. Also rocks it as a software dev with skills in OS, web dev, Flask, Python, C++, data structures, and algorithms. 3 on Leetcode, 5*on Hackerrank more platform.
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