#include<stdio.h>
#include<conio.h>
int main()
{
    //we are assuming only integer values for triangle sides
    int x, y, z;
    int max, valid;
    // x for AB y for BC z for AC

    //now calculate max side value among all the sides
    //Take input
    printf("Enter the first side of triangle: ");
    scanf("%d", &x);
    printf("Enter the second side of triangle: ");
    scanf("%d", &y);
    printf("Enter the third side of triangle: ");
    scanf("%d", &z);

    max = x;

    if(max<y)
        max=y;

    if(max<z)
        max=z;

    //now check for validation rules
    //if largest side is lower than the sum of two remaining sides
    if(max == x && x < (y+z))
        valid = 1;

    if(max == y && y < (x+z))
        valid = 1;

    if(max == z && z < (x+y))
        valid = 1;

if (valid==1)
    printf("Triangle is valid");
else
     x i' opiprintf("Triangle is not valid");
}