Write a C, C++ program to find the greatest of three numbers. Given three input numbers, we have to write a code to find greatest of three numbers.

In this tutorial, we cover following topics.

2. In next step, Compare a with b and c. If a is greater than b and c than a is greatest among three numbers.

3. Similarly, Compare b with a and c. if b is greater than a and c than b is greatest among three numbers.

4. Compare c with a and b. If c is greater than a and b than c is greatest among three numbers.

C interview questions

We have discussed the algorithm to find greatest of three numbers. Let's write a C++ code to print the greatest number.

8 is Greatest

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In this tutorial, we cover following topics.

- Algorithm to find greatest of three numbers.
- C Program to find greatest of three numbers.
- C++ program to find greatest of three numbers.

## Algorithm to Find Greatest of three Numbers

1. In first step, let's declare three variables to hold the values of three input numbers.2. In next step, Compare a with b and c. If a is greater than b and c than a is greatest among three numbers.

3. Similarly, Compare b with a and c. if b is greater than a and c than b is greatest among three numbers.

4. Compare c with a and b. If c is greater than a and b than c is greatest among three numbers.

C interview questions

## Find Greatest of three Numbers in C++

We have discussed the algorithm to find greatest of three numbers. Let's write a C++ code to print the greatest number.

#include <iostream> using namespace std; int main() { int a,b,c; cout << "Enter three numbers"; cin >> a >> b >> c; /*check whether a is greater than b and c*/ if(a > b && a > c) { cout<<"Greatest number is"<<a; /* check whether b is greater than a and c */ } else if( b > a && b > c) { cout << "Greatest number is "<<b; } else { cout << "Greatest number is "<<c; } return 0; }

## Find Greatest of three Numbers in C

#include <stdio.h> int main(){ int a, b, c; printf("Enter three numbers "); scanf("%d %d %d", &a, &b, &c); if (a > b && a > c) { printf("%d is Greatest",a); } else if (b > a && b > c) { printf("%d is Greatest",b); } else { printf("%d is Greatest",c); } return 0; }

**Output :**

**Enter three numbers : 8 2 1**

8 is Greatest

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