08 Apr 2019
Given an array A of integers. Write a function to rotate the array by n position;
#include <bits/stdc++.h> using namespace std; //function to rotate an array vector<int> rotateArray(vector<int> A, int n){ vector<int> ret; int s = A.size(); for(int i = 0; i < s; i++) ret.push_back(A[(i + n) % s]); return ret; } //driver int main() { vector<int> A = {5, 6, 3, 2}; //before rotation for(int i = 0; i < A.size(); i++) cout << A[i] << " "; cout << endl; //rotate by arbitrairy position int n = 1; A = rotateArray(A, n); //after rotation for(int i = 0; i < A.size(); i++) cout << A[i] << " "; return 0; }