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Get Hiring UpdatesCognizant GenC Elevate Sample Coding Question 9
Question 9
In this article, we will discuss about Coding Question with their solution in C++ and java. In this question , we have to find the number of words that remain same after rotating the characters of the word left to right N times.
Question 9
Vira writes an apology letter to anu. However, before Anu can read it, Vira’s enemy Rohan takes it and rotates the characters of each word left to right N times. Find the number of words that remain the same even after this shifting of letters.
Input Specification:
- input1: String of words
- input2: N, number of times rotation happens
Output Specification:
- Your function should return the number of correct words.
Example 1:
input1: llohe ereth
input2: 2
Output : 2
Example 2:
input1: Sorry
input2: 2
Output : 0
C++
Java
C++
#include<bits/stdc++.h>
using namespace std;
// In-place rotates s towards left by d
void leftrotate(string &s, int d)
{
reverse(s.begin(), s.begin()+d);
reverse(s.begin()+d, s.end());
reverse(s.begin(), s.end());
}
// Driver code
int main()
{
string str1;
cin>>str1;
Int n;
cin>>n;
leftrotate(str1, n);
cout << str1 << endl;
return 0;
}
Java
import java.util.*;
import java.io.*;
public class Apology{
static String leftrotate(String str, int d)
{
String ans = str.substring(d) + str.substring(0, d);
return ans;
}
public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
String str1 = sc.nextLine();
int n = sc.nextInt();
String rotate = leftrotate(str1, n);
char ch1[] = str1.toCharArray();
char ch2[] = rotate.toCharArray();
int count = 0;
for(int i=0 ; i<str1.length() ; i++){
if(ch1[i] == ch2[i])
count++;
}
System.out.print(""+count);
}
}
