Strings and Array

#include <iostream>
#include<string.h>
using namespace std;

//checking the length of string without using strlen function
int getLength(char name[]) {
        int length = 0;
        int i = 0; 

        while(name[i] != '\0') {
                length++;
                i++;
        }
        return length;
}

//Using two pointers approach to reverse a string
void reverseCharArray(char name[]) {
        int i = 0;
        int n = getLength(name);
        int j = n - 1;

        while(i<=j) {
                swap(name[i], name[j]);
                i++;
                j--;
        }

}

void replaceSpaces(char sentence[ ]){
        
        int i = 0;
        int n = strlen(sentence);

        for(int i=0; i<n; i++) {
                if(sentence[i] == ' ') {
                        sentence[i] = '@';
                }
        }
}

bool checkPalindrome(char word[] ) {
        int i=0;
        int n = strlen(word);
        int j = n - 1;

        while(i <= j) {
                if(word[i] != word[j]) {
                        return false;
                }
                else {
                        i++;
                        j--;
                }
        }
        return true;
}

void convertIntoUpperCase(char arr[]) {
        int n = getLength(arr);

        for(int i=0; i<n; i++) {
                arr[i] = arr[i] -'a' + 'A';
        }
}


int main() {
  char name[100];
  cout<< "Enter your Name " << endl;

  cin >> name;

  cout << "Aapka naam: " << name << " hai " << endl;

        char ch[100];

        ch[0] = 'a';
        ch[1] = 'b';
        cin >> ch[2];

        cout << ch[0] << ch[1] << ch[2] << endl;

        char name[100];

        cin >> name;

        for(int i=0; i<7; i++) {
                cout << "index: " << i << " value: " << name[i] << endl;
        }

        int value = (int)name[6];
        cout << "value is : " << value << endl;


        char arr[100];
        cin >> arr;
        getline(cin, arr);
        cin.getline(arr, 50);

        cout << arr;
        
        char name[100];
        cin >> name;

        cout << "length is: " << getLength(name) << endl;
        cout << "Length is -> " << strlen(name) << endl;

        cout << "Initially: " << name << endl;
        reverseCharArray(name);
        cout << "After reversal process: " << name << endl;

        char sentence[100];
        cin.getline(sentence, 100);

        replaceSpaces(sentence);
        cout << "printing sentence " << endl << sentence << endl;

        char arr[100] = "hahahahha";
        cout << "palindrome check: " << checkPalindrome(arr);

        char arr[100] = "babbar";
        convertIntoUpperCase(arr);
        cout << arr << endl;


  return 0;
}