P2 - Pythagorean Math Test

pymate.c

/*
 * foobar - Shubham Chaudhary
 *          Nitul Datt

Pythagorean Math TestPythagoras is teaching mathematics to a class of N students. He wants to test if his students understood his new theorem. He gives his students the length of the sides of a triangle and they have to tell him if it is a right triangle.InputFirst line an integer N, the number of students.	0<N<=50Next N lines each containing 3 integers a, b and c which are the length of the sides of the triangle. 0<a,b,c. (DO NOT PRINT ANY PROMPT MESSAGE TO READ THE INPUT.)OutputIf the given triangle is right angled print "RIGHT TRIANGLE" in a single line. If the given triangle is not right angled print "NOT RIGHT TRIANGLE" in a single line. (DO NOT PRINT ANY MESSAGE OTHER THAN THE SPECIFIED OUTPUT.)Sample input23 5 43 2 1Sample outputRIGHT TRIANGLENOT RIGHT TRIANGLE
 */
#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int fastread()
{
    unsigned int input;
    char c=0;
    while (c<33){
        c=getchar_unlocked();
        //printf("\nWHILE: c is %c",c);
    }
    input=0;
    while (c>33)
    {
        //printf("\nWHILE 2 : c is %c",c);
        input=input*10+c-'0';
        //printf("\n%d * 10 + %d - %d",input,c,'0');
        c=getchar_unlocked();
    }
    //printf("\nInput is : %d",input);
    return input;
}

int main(){
    //foobar
    int n;
    n=fastread();//scanf("%d",&m);
    int i;
    for(i=0;i<n;i++){
        //~ int a,b,c;
        int a[3];
        a[0]=fastread();
        a[1]=fastread();
        a[2]=fastread();
        //~ a=fastread();
        //~ b=fastread();
        //~ c=fastread();
        //~ int max=(a>b&&a>c? a :  b>c?b:c);
        //~ int pa=pow(fastread(),2);
        //~ int pb=pow(fastread(),2);
        //~ int pc=pow(fastread(),2);
        //int max;
        int index;
        if(a[0]>a[1] && a[0]>a[2]){
            //max=a[0];
            index=0;
        }else if(a[1]>a[2]){
            //max=a[1];
            index=1;
        }else{
            //max=a[2];
            index=2;
        }
        //~ if(pa==pb+pc || pc==pb+pa || pb==pc+pa){
            //(pow(a,2)==(pow(b,2)+pow(c,2))) || (pow(b,2)==(pow(a,2)+pow(c,2))) || (pow(c,2)==(pow(b,2)+pow(a,2)))){
        if(pow(a[index],2) == pow(a[(index+1)%3],2) + pow(a[(index+2)%3],2)){
            printf("RIGHT TRIANGLE\n");
        }else{
        printf("NOT RIGHT TRIANGLE\n");
        }
    }
    return 0;
}