C PROGRAMMING PROGRAM • FUNCTIONS & RECURSION

Find Maximum Using a Function

Learn how to find maximum using a function using a clear C program.

BeginnerFunctionsParametersReturn values

PROBLEM UNDERSTANDING

Input and expected output

Sample input

14 39 27

Sample output

Maximum = 39

COMPLETE C PROGRAM

Complete C implementation

#include <stdio.h>

int maximum(int first, int second)
{
    return first > second ? first : second;
}

int main(void)
{
    int first, second, third;

    printf("Enter three integers: ");
    scanf("%d %d %d", &first, &second, &third);
    printf("Maximum = %d\n", maximum(maximum(first, second), third));
    return 0;
}

CURRENT STEP

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SELECTED LINE

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EXPECTED OUTPUT FOR THE SAMPLE

Maximum = 39

0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

Read the required input values.
Use a two-value maximum function twice to handle three inputs.
Display the computed result.

Use a two-value maximum function twice to handle three inputs.

EFFICIENCY

Time and space complexity

Time complexity

O(1)

Auxiliary space

O(1)

DEBUGGING CHECKLIST

Common mistakes

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Use the correct format specifier for every variable.

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Initialize variables before using their values.

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Check braces, semicolons and input order carefully.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.