Problem - 6 : Triangle is valid or not.

#include <stdio.h>

int main()
{
    int a,b,c,valid = 0;

    printf("Enter three sides of triangle : ");
    scanf("%d %d %d", &a, &b, &c);

    if((side1 + side2) > side3)

    {

        if((side2 + side3) > side1)

        {

            if((side1 + side3) > side2)

            {

                valid = 1;

            }

        }

    }

    if(valid == 1)

    {

        printf("Triangle is valid\n");

    }

    else

    {

        printf("Triangle is not valid\n");

    }

    return 0;
}