Repeated String

Problem Statement :

```There is a string, s, of lowercase English letters that is repeated infinitely many times. Given an integer, n, find and print the number of letter a's in the first n letters of the infinite string.

Example

s = 'abcac'
n = 10

The substring we consider is abcacabcac, the first 10 characters of the infinite string. There are  4 occurrences of a in the substring.

Function Description

Complete the repeatedString function in the editor below.

repeatedString has the following parameter(s):

s: a string to repeat
n: the number of characters to consider
Returns

int: the frequency of a in the substring
Input Format

The first line contains a single string, s.
The second line contains an integer, n.

Constraints

1  <=   | s |  <=  100
1  <=    n     <=   10^12

For 25%  of the test cases, n <= 10^6 .```

Solution :

```                            ```Solution in C :

In    C :

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

int main(){
char* s = (char *)malloc(512000 * sizeof(char));
scanf("%s",s);
long n,o,p,i;
scanf("%ld",&n);
o=0;
for(i=0;s[i]!='\0';i++)
{
if(s[i]=='a')
o++;
}
p=n%i;
n=n/i;
o=o*n;
n=0;
for(i=0;i<p;i++)
if(s[i]=='a')
n++;
printf("%ld",o+n);
return 0;
}```
```

```                        ```Solution in C++ :

In    C ++ :

#include <iostream>
#include <cstring>
#include <cmath>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <set>
#include <string>
#include <map>
#include <ctime>
#include <cstdlib>
#include <unordered_set>

using namespace std;

typedef long long ll;

const int MaxN = 100;

char s[MaxN + 1];

int main() {
ll n;
scanf ("%s", s);
int len = (int)strlen(s);
scanf ("%lld", &n);

ll tot = n / len;

ll as = 0;
for (int i = 0; i < len; ++i)
if (s[i] == 'a')
++as;

ll res = tot * as;

for (int i = 0; i < n % len; ++i)
if (s[i] == 'a')
++res;

printf ("%lld", res);

}```
```

```                        ```Solution in Java :

In   Java  :

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String s = in.next();
long n = in.nextLong();
long num = n/s.length();
long rem = n%s.length();
long ans = 0;
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i)=='a') {
ans += num;
if (i < rem)
ans++;
}
}
System.out.println(ans);
}
}```
```

```                        ```Solution in Python :

In   Python3  :

#!/bin/python3

import math
import os
import random
import re
import sys

# Complete the repeatedString function below.
def repeatedString(s, n):
return (s.count('a') * (n//len(s))+s[:n%len(s)].count('a'))

if __name__ == '__main__':
fptr = open(os.environ['OUTPUT_PATH'], 'w')

s = input()

n = int(input())

result = repeatedString(s, n)

fptr.write(str(result) + '\n')

fptr.close()```
```

Tree: Inorder Traversal

In this challenge, you are required to implement inorder traversal of a tree. Complete the inorder function in your editor below, which has 1 parameter: a pointer to the root of a binary tree. It must print the values in the tree's inorder traversal as a single line of space-separated values. Input Format Our hidden tester code passes the root node of a binary tree to your \$inOrder* func

Tree: Height of a Binary Tree

The height of a binary tree is the number of edges between the tree's root and its furthest leaf. For example, the following binary tree is of height : image Function Description Complete the getHeight or height function in the editor. It must return the height of a binary tree as an integer. getHeight or height has the following parameter(s): root: a reference to the root of a binary

Tree : Top View

Given a pointer to the root of a binary tree, print the top view of the binary tree. The tree as seen from the top the nodes, is called the top view of the tree. For example : 1 \ 2 \ 5 / \ 3 6 \ 4 Top View : 1 -> 2 -> 5 -> 6 Complete the function topView and print the resulting values on a single line separated by space.

Tree: Level Order Traversal

Given a pointer to the root of a binary tree, you need to print the level order traversal of this tree. In level-order traversal, nodes are visited level by level from left to right. Complete the function levelOrder and print the values in a single line separated by a space. For example: 1 \ 2 \ 5 / \ 3 6 \ 4 F

Binary Search Tree : Insertion

You are given a pointer to the root of a binary search tree and values to be inserted into the tree. Insert the values into their appropriate position in the binary search tree and return the root of the updated binary tree. You just have to complete the function. Input Format You are given a function, Node * insert (Node * root ,int data) { } Constraints No. of nodes in the tree <

Tree: Huffman Decoding

Huffman coding assigns variable length codewords to fixed length input characters based on their frequencies. More frequent characters are assigned shorter codewords and less frequent characters are assigned longer codewords. All edges along the path to a character contain a code digit. If they are on the left side of the tree, they will be a 0 (zero). If on the right, they'll be a 1 (one). Only t