C Program to Print Number of Rounds Needed to Bubble Sort an Array

Problem Statement: Given an Array, print the number of rounds
needed in bubble sort

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

void swap(int *xp, int *yp)
{
    int temp = *xp;
    *xp = *yp;
    *yp = temp;
}

bool isSorted(int arr[], int n)
{
    for (int i = 0; i < n - 1; i++)
    {
        if (arr[i] > arr[i + 1])
        {
            return false;
        }
    }

    return true;
}

int bubbleSort(int arr[], int n)
{
    int i, j;
    int flag;
    int rounds = 0;
    if (isSorted(arr, n))
    {
        return 0;
    }
    else
    {
        for (i = 1; i < n; i++)
        {

            for (j = 0; j < n - 1; j++)
            {

                if (arr[j] > arr[j + 1])
                {
                    swap(&arr[j], &arr[j + 1]);
                }
            }

            rounds = i;

            if (isSorted(arr, n))
            {
                return i;
            }
        }
    }
    return rounds;
}

int main()
{
    int i, n;
    printf("\nEnter number of elements:");
    scanf("%d", &n);
    int arr[n];
    printf("\nEnter elements:");
    for (i = 0; i < n; i++)
    {
        scanf("%d", &arr[i]);
    }
    printf("\nBubble sort rounds:\t%d", bubbleSort(arr, n));
    //printArray(arr,n);
    return 0;
}

Time complexity:O(n2)

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