Proverka za triagolnik

/******************************************************************************

                            Online C Compiler.
                Code, Compile, Run and Debug C program online.
Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#include <stdio.h>

int main()
{
    int a,b,c,tmp;
    scanf("%d%d%d", &a, &b,&c);

if ((a+b<=c)||(a+c<=b)||(b+c<=a)){
printf("NO\n");
}
else{
printf("YES\n");

if(a>=b){
   tmp;
    tmp=a;
    a=b;
    b=tmp;
                }
if (a>=c){
a>=c;
c=tmp;
            }
if(b>=c) {
b=c;
c=tmp;
        }

if (c*c==a*a+b*b)
{
printf("Pravoagolen e\n");
float P;
P=(float)a*b/2;
printf("ploshtinata e %.2f\n" ,P);
}
else {
printf("Ne e Pravoagolen\n");
}
}
    return 0;
}