Go: package main

import (
	"bufio"
	"fmt"
	"math"
	"os"
	"sort"
	"strconv"
	"strings"
)

func sliceAtof64(sa []string) ([]float64, error) {
	si := make([]float64, 0, len(sa))
	for _, a := range sa {
		i, err := strconv.ParseFloat(a, 64)
		if err != nil {
			return si, err
		}
		si = append(si, i)
	}
	return si, nil
}

func answer(ans bool) {
	if ans {
		fmt.Println("YES")
	} else {
		fmt.Println("NO")
	}
}
func isRightTriangle(ary []float64) (ans bool) {
	sort.Sort(sort.Reverse(sort.Float64Slice(ary)))
	ans = math.Pow(ary[1], 2.0)+math.Pow(ary[2], 2.0) == math.Pow(ary[0], 2.0)

	return
}

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Scan()
	lineCount, _ := strconv.Atoi(scanner.Text())
	lines := make([]string, lineCount)

	for i := 0; i < lineCount; i++ {
		scanner.Scan()
		lines[i] = scanner.Text()
	}

	for _, v := range lines {
		ary, _ := sliceAtof64(strings.Split(v, " "))
		answer(isRightTriangle(ary))
	}
}

C++: #include<stdio.h>

int main(){
	
	int a,b,c,N,t,A,B,C;
	
	scanf("%d",&N);
	
	for(t=0;t<N;t++){
		
		scanf("%d %d %d",&a,&b,&c);
		
		A=a*a-b*b-c*c;
		B=b*b-c*c-b*b;
		C=c*c-a*a-b*b;
		
		if(A==0||B==0||C==0){
			
			printf("YES\n");
		}
		else printf("NO\n");
		
	}
	
	return 0;
	
}

C++: #include <stdio.h>

int main(void){
	int N,a,b,c,i;
	scanf("%d",&N);
	for(i=0;i<N;i++){
		scanf("%d %d %d",&a,&b,&c);
		if(a*a+b*b==c*c || a*a+c*c==b*b || b*b+c*c==a*a){printf("YES\n");}
		else{printf("NO\n");}
	}
}

C++: #include <utility>
#include <iostream>
#include <algorithm>

using namespace std;

int main()
{
	int L[3], E[1000], N;
	
	cin >> N;

	for (int i = 0; i < N; i++)
	{
		cin >> L[0] >> L[1] >> L[2];

		if (L[0] < L[1]){ swap(L[0], L[1]); }
		if (L[0] < L[2]){ swap(L[0], L[2]); }
		if (L[1] < L[2]){ swap(L[1], L[2]); }

		E[i] = L[0] * L[0] - (L[1] * L[1] + L[2] * L[2]);
	}

	for (int i = 0; i < N; i++)
	{
		cout << ((E[i] == 0) ? "YES" : "NO") << endl;
	}

	return 0;
}

C++: #include <iostream>
#include <stdio.h>
#include <vector>
#include <algorithm>
#include <math.h>

int main() {
    int n;
    std::vector<int> V;
    
    scanf("%d", &n);
    for (int i = 0; i < n; i++) {
        int a, b, c; std::cin >> a >> b >> c;
        V.push_back(a); V.push_back(b); V.push_back(c);
        std::sort(V.begin(), V.end());
        if (pow(V[2], 2) == pow(V[0], 2) + pow(V[1], 2)) printf("YES\n");
        else printf("NO\n");
    }
    
    return 0;
}

C++: #include <iostream>
#include <cmath>
#include <vector>

#define upper 1000
#define lower 1
#define eN 1000

using namespace std;


void swap(int& e1, int& e2, int& e3){
	if (e1 > e2){
		int tmp = e1;
		e1 = e2;
		e2 = tmp;
	}
	if (e2 > e3){
		int tmp = e2;
		e2 = e3;
		e3 = tmp;
	}
	if (e1 > e3){
		int tmp = e1;
		e1 = e3;
		e3 = tmp;
	}
}

bool check(int e1, int e2, int e3){
	if (((e1*e1)+(e2*e2)) == (e3*e3)){
		return true;
	}
	else{
		false;
	}
}

int main(void){
	int N = 1;
	cin >> N;
	vector<bool> arr;

	for (int i=0; i<N; ++i){
		int e1, e2, e3;
		cin >> e1 >> e2 >> e3;
		swap(e1,e2,e3);
		arr.push_back(check(e1,e2,e3));
	}
	for (int i=0; i<N; ++i){
		if (arr[i] == true){
			cout << "YES" << endl;
		}
		else{
			cout << "NO" << endl;
		}
	}
	return 0;
}

C++: #include <iostream>
using namespace std;

int main(){
	int N = 0;
	int array[3] = {};
	int i, j, k;
	int work;
	cin >> N;
	for(i = 0; i < N; i++){
		cin >> array[0] >> array[1] >> array[2];


		for (j = 0; j < 3 - 1; j++) {
			for (k = 3 - 1; k > j; k--) {
				if (array[k - 1] > array[k]) {
					work = array[k];
					array[k] = array[k - 1];
					array[k - 1]= work;
				}
			}
		}	
			
		if( (array[0] + array[1]) > array[2] ){
				cout << "YES\n";
				
		}
		
		else{
			cout << "NO\n";
		}
    }
    return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i=0;i<n;i++)

int main() {
  int n;cin>>n;
  rep(i,n) {
    vector<int> a(3);
    cin>>a[0]>>a[1]>>a[2];
    sort(a.begin(),a.end());
    cout<<(a[2]*a[2]==a[1]*a[1]+a[0]*a[0] ? "YES":"NO")<<endl;
  }
  return 0;
}

C++: //
//  main.cpp
//  0003
//
//  Created by 竹内 文登 on 13/07/14.
//  Copyright (c) 2013年 竹内 文登. All rights reserved.
//

#include <iostream>
using namespace std;
int main()
{
    int M;
    int a,b,c;
    
    cin >> M;
    
    while(cin >> a >> b >> c){
        if(a*a == b*b + c*c)
            cout << "YES" <<endl;
        else if(a*a + b*b == c*c)
            cout << "YES" <<endl;
        else if(a*a + c*c ==b*b)
            cout << "YES" <<endl;
        else
            cout << "NO" << endl;
    }
    
    
    return 0;
}

C++: #include<stdio.h>
#include<algorithm>

using namespace std;

int main(){
	int n,a,b,c;
	int m=0;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
		int a[3];
		for(int j=0;j<3;j++)scanf("%d",&a[j]);
		std::sort(a,a+3);
		
		int d = 10;
		if(a[0]>d || a[1]>d || a[2]>d)puts("hogehogehoge");
		
		if(a[0]*a[0]+a[1]*a[1] == a[2]*a[2]){
			puts("YES");
		}else{
			puts("NO");
		}
	}
}

C++: /*
    2014.07.04 1250~1255
    C language Lecture week ∞
*/

#include <stdio.h>
#include <string.h>

int rtri_chk ( int a, int b, int c );

int main (void) {
    
    // 三角形の辺の長さ用
    int a;
    int b;
    int c;
    
    int max;
    
    scanf ( "%d", &max );
    
    for ( int cnt = 0; cnt < max; cnt ++ ) {
        scanf ( "%d", &a );
        scanf ( "%d", &b );
        scanf ( "%d", &c );
        if ( rtri_chk ( a, b, c ) ) {
            printf ( "YES\n" );
        } else {
            printf ( "NO\n" );
        }
    }
    
    return 0;
    
}

int rtri_chk ( int a, int b, int c ) {
    
    int a2 = a * a;
    int b2 = b * b;
    int c2 = c * c;
    if ( a2 == b2 + c2 || b2 == a2 + c2 || c2 == a2 + b2 ) {
        return 1;
    } else {
        return 0;
    }
    
}