11479 - Is this the easiest problem?

[lighted]

Try input in this thread first.

Can anyone give some special input output?
input:

Code: Select all

1
9 2 2

output:

Code: Select all

Case 1: Invalid

Accepted.

A triangle is invalid if any side_length <= 0 or (sum of smaller 2 sides <= largest side).
A triangle is scalene if it is valid && all the sides are distinct.

To check if the sides form a triangle, you should performe 2 tests:

1. See if every input is greater than zero
2. | b - c | < a < b + c

I got accepted and I didn't check if input is negative. Maybe judge doesn't contain negative input

[LanceHAOH]

I have researched this forums for possible hints to why my code is wrong. But I cannot find any. Could someone please help me?

Code: Select all

class Main {

    public static void main(String[] args) {
        java.util.Scanner in = new java.util.Scanner(System.in);
        long[] sides = new long[3];
        long cases = in.nextLong();
        String triangleType;

        for (int i = 1; i <= cases; i++) {

            sides[0] = in.nextLong();
            sides[1] = in.nextLong();
            sides[2] = in.nextLong();

            triangleType = "Invalid";

            /* Ensure sum of any two sides > third side */
            if (sides[0] > 0 && sides[1] > 0 && sides[2] > 0) {
                if (sides[0] + sides[1] > sides[2] && sides[1] + sides[2] > sides[0]
                        && sides[0] + sides[2] > sides[1]) {
                    if (sides[0] == sides[1] && sides[1] == sides[2]) {
                        /* Check for equilateral triangle */
                        triangleType = "Equilateral";
                    } else if (sides[0] != sides[1] && sides[0] != sides[2] && sides[1] != sides[2]) {
                        /* Check for scalene triangle */
                        triangleType = "Scalene";
                    } else {
                        /* Check for isoceles triangle */
                        triangleType = "Isosceles";
                    }
                }
                System.out.println("Case " + i + ": " + triangleType);
            }
        }
    }
}

[brianfry713]

Next time post in the existing thread and use code blocks.
It looks like you figured it out.

[Sabrina Haque]

got WA

Code: Select all

#include<stdio.h>

int main()
{
    int test_case,i;
    long long int a,b,c;

    scanf("%d",&test_case);

    for(i=1;i<=test_case;i++)
    {
        scanf("%llu %llu %llu",&a,&b,&c);

        if(a>=b+c || b>=a+c || c>=a+b || a<=0 || b<=0 || c<=0)
            printf("case %d: Invalid\n",i);
        else if(a==b && b==c)
            printf("case %d: Equilateral\n",i);
        else if(a==b || a==c || b==c || c==a)
            printf("case %d: Isosceles\n",i);
        else if(a!=b && b!=c)
             printf("case %d: Scalene\n",i);
    }

    return 0;
}