C :

#include<stdio.h>
void main()
{
int a,b,c;
scanf("%d%d%d",&a,&b,&c);	
if(a+b<c||a+c<b||b+c<a){
printf("no");}
else if(a*a+b*b==c*c||a*a+c*c==b*b||c*c+b*b==a*a){
printf("zhijiao");	
}
else if(a*a+b*b<c*c||a*a+c*c<b*b||b*b+c*c<a*a){
printf("dunjiao");	
}
else if(a*a+b*b>c*c||a*a+c*c>b*b||b*b+c*c>a*a){
printf("ruijiao");	
}	
 } 

C++ :

#include <iostream>
#include <iomanip>
using namespace std;

int main(){
    int a,b,c;
    cin>>a>>b>>c;
    if(a+b>c&&b+c>a&&c+a>b){
    	if(a*a+b*b==c*c||a*a+c*c==b*b||b*b+c*c==a*a){
    		cout<<"zhijiao";
		}else if(a*a+b*b<c*c||a*a+c*c<b*b||b*b+c*c<a*a){
			cout<<"dunjiao";
		}else{
			cout<<"ruijiao";
		}
	}else{
		cout<<"no";
	}
}

Pascal :

var a:array[1..100] of longint;
    i,j,t:longint;
begin
  for i:=1 to 3 do
   read(a[i]);

  for i:=1 to 2 do
   for j:=i+1 to 3 do
     if a[i]>a[j] then begin t:=a[i];a[i]:=a[j];a[j]:=t; end;

  if a[1]+a[2]>a[3] then
   begin
    if a[1]*a[1]+a[2]*a[2]=a[3]*a[3] then writeln('zhijiao');
    if a[1]*a[1]+a[2]*a[2]<a[3]*a[3] then writeln('dunjiao');
    if a[1]*a[1]+a[2]*a[2]>a[3]*a[3] then writeln('ruijiao');
   end else writeln('no');
end.

Java :

import java.util.Scanner;
public class Main{
	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		String str=scanner.nextLine();
		String[] strArray=str.split(" ");
		int[] intArray=new int[strArray.length];
		for(int i=0;i<strArray.length;i++){
			intArray[i]=Integer.valueOf(strArray[i]);
		}
		for(int i=0;i<intArray.length;i++){
			for(int j=0;j<intArray.length-1;j++){
				if(intArray[j]>=intArray[j+1]){
					int temp=intArray[j];
					intArray[j]=intArray[j+1];
					intArray[j+1]=temp;
				}		
			}
		}
		int a=intArray[0];
		int b=intArray[1];
		int c=intArray[2];
		if((a+b>c)&&(c-a<b)&&(c-b<a)){
			if(a*a+b*b==c*c){
				System.out.println("zhijiao");
			}else if(a*a+b*b>c*c){
				System.out.println("ruijiao");
			}else{
				System.out.println("dunjiao");
			}
		}else{
			System.out.println("no");
		}
	}
}

Python :

a,b,c=map(int,input().split())
if a+b<=c or a+c<=b or b+c<=a:
    print('no')
if a+b>c and a+c>b and b+c>a:
    if a*a+b*b==c*c or a*a+c*c==b*b or b*b+c*c==a*a:
        print('zhijiao')
        
    elif a*a+b*b>c*c and a*a+c*c>b*b and b*b+c*c>a*a:
        print('ruijiao')

    elif a*a+b*b<c*c or a*a+c*c<b*b or b*b+c*c<a*a:
        print('dunjiao')