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Merge Sort in C++

  Merge Sort in C++ Introduction Merge Sort is a popular sorting algorithm that follows the Divide and Conquer approach. It divides an array into smaller subarrays, recursively sorts those subarrays, and finally merges the sorted subarrays to produce a completely sorted array. In this tutorial, we will learn how to implement Merge Sort in C++ . The program divides the array into two halves using the mid index, recursively sorts both halves, and then combines them using the merge() function. Merge Sort has a time complexity of O(n log n) in the best, average, and worst cases. Table of Contents Algorithm C++ Program Input Sample Output Output Explanation Dry Run Flow of Execution Time Complexity Space Complexity Applications Key Points Interview Questions Frequently Asked Questions Keywords Conclusion Algorithm Start the program. Read the size of the array. Read the array elements from the user. Call the mer...

Write a program to find the greatest of given 3 numbers in c

Description : 

You should read 3 integers from user and find the maximum of three numbers.

Sample Execution : 

Test case 1 : 

Enter the three numbers : 10 20 30

Max of three number is 30

Test case 2 :

Enter the three numbers : 90 20 40

Max of three number is 90

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#include<stdio.h>

int main()

{

    int num1,num2,num3;

    printf("Enter the three numbers:");

    scanf("%d %d %d",&num1,&num2,&num3);

    if(num1>=num2 && num1>num3)

    {

    printf("Max of three number is %d",num1);

    }

    else if (num2>=num1 && num2>=num3)

    {

        printf("Max of three number is %d",num2);

    }

    else if(num3>=num1 && num3>=num2)

        printf("Max of three number is %d",num3);

}

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sample input;Enter three numbers:10 20 30

sample output:Max of three numberis 30

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