C PROGRAMMING PROGRAM • LOOPS & NUMBER PROBLEMS

Print Numbers from 1 to N

Learn how to print numbers from 1 to n using a clear C program.

Beginnerfor loopCounterSequence

PROBLEM UNDERSTANDING

Input and expected output

Sample input

Sample output

1 2 3 4 5

COMPLETE C PROGRAM

Complete C implementation

#include <stdio.h>

int main(void)
{
    int limit;

    printf("Enter N: ");
    scanf("%d", &limit);
    for (int number = 1; number <= limit; number++)
        printf("%d%c", number, number == limit ? '\n' : ' ');
    return 0;
}

CURRENT STEP

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SELECTED LINE

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EXPECTED OUTPUT FOR THE SAMPLE

1 2 3 4 5

0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

Read the required input values.
Increment a loop counter from 1 through N and print each value.
Display the computed result.

Increment a loop counter from 1 through N and print each value.

EFFICIENCY

Time and space complexity

Time complexity

O(n)

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.