Reverse a Number using Command Line Argument

C Programming Language Command Line Arguments (Article) Command Line Arguments (Program)

3130

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Program:

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

int main(int argc, char *argv[])
{
    if(argc==1)
    {
        printf("No Arguments");
        return 0;
    }
    else
    {
        int n,reverseNumber,temp,rem;
        n=atoi(argv[1]);
        temp=n;
        reverseNumber=0;

    while(temp)
    {
        rem=temp%10;
        reverseNumber=reverseNumber*10+rem;
        temp=temp/10;
    }
    
    printf("%d",reverseNumber);
    return 0;
}
}

Output:

123

321

Explanation:

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