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 <cstdio>
int main()
{

        int i;
        scanf("%d",&i);

        int tri[8][3];

        int cnt,k;

        for(cnt=0;cnt<i;cnt++)
        {
                scanf("%d %d %d",&tri[cnt][0],&tri[cnt][1],&tri[cnt][2]);        
                for(k=0;k<3;k++)
                {
                        tri[cnt][k]=tri[cnt][k]*tri[cnt][k];
                }
                if(tri[cnt][0]==(tri[cnt][1]+tri[cnt][2])||tri[cnt][1]==(tri[cnt][2]+tri[cnt][0])||tri[cnt][2]==(tri[cnt][0]+tri[cnt][1])) printf("YES\n");
                else printf("NO\n");
        }

        return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

int main() {
	int N;
	cin >> N;

	for (int i = 0; i < N; i++) {
		vector<int> v(3);
		cin >> v.at(0) >> v.at(1) >> v.at(2);

		sort(v.begin(), v.end());
		int& a = v.at(0),
			& b = v.at(1),
			& c = v.at(2);
		a *= a;
		b *= b;
		c *= c;
		if (a + b == c) {
			cout << "YES" << endl;
		}
		else {
			cout << "NO" << endl;
		}
	}
}

C++: #include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
	int n;
	cin>>n;
	while(n--){
		vector<int> v(3);
		for (int i = 0; i < 3; ++i){
			cin>>v[i];
		}
		sort(v.begin(), v.end());
		if (v[2]*v[2] == v[0]*v[0] + v[1]*v[1])
			cout<<"YES";
		else
			cout<<"NO";
		cout<<endl;
	}
	return 0;
}

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

int a, b, c, n;

int main()
{
    cin >> n;

    for (int i = 0; i < n; ++i) {
        cin >> a >> b >> c;

        if (a > c) swap(a, c);
        if (b > c) swap(b, c);

        cout << (a * a + b * b == c * c ? "YES" : "NO") << endl;
    }

    return 0;
}

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

int main()
{
  int n;
  cin >> n;
  for (int dataset=0; dataset<n; dataset++)
  {
    int triangle[3];
    cin >> triangle[0] >> triangle[1] >> triangle[2];
    for (int i=0; i<3; i++)   //sort
    {
      int tmp;
      for (int j=i; j != 0 && triangle[j] > triangle[j-1]; j--)
      {
        tmp = triangle[j];
        triangle[j] = triangle[j-1];
        triangle[j-1] = tmp;
      }
    }

    if ( triangle[0]*triangle[0] == triangle[1]*triangle[1] + triangle[2]*triangle[2] )
    {
      cout << "YES" << endl;
    }
    else
    {
      cout << "NO" << endl;
    }
  }  
}

C++: #include<iostream>
#include<cstdio>
#include<vector>
#include<string>
#include<algorithm>

#define doubled( x ) (x * x)

//?????°?????°?????? (in:??´??° out:?????°)
int digit_count(int num);

using namespace std;

int main()
{
	int N; cin >> N;
	vector<int> data(3);
	
	for(int i = 0; i < N; i++)
	{
		for(int j = 0; j < 3; j++)
		{
			cin >> data[j];
		}
		sort(data.begin(), data.end());
		
		if( ( doubled(data[0]) + doubled(data[1]) ) == doubled(data[2]) )cout << "YES";
		else cout << "NO";
		
		cout << endl;
	}
	return 0;
}

int digit_count(int num)
{
	if( num < 0 )num *= (-1);
	
	int count = 0;
	
	for(int i = 10; num != 0; i *= 10)
	{
		int diff = num % i;
		num -= diff;
		count++;
	}
		
	return count;
}

C++: #include <iostream>
#include <cmath>
#define REP(i,n) for(int i=0;i<n;i++)
using namespace std;

int main()
{
    int a,b,c;
    int N;
    cin >> N;
    REP(i,N) {
        cin >> a >> b >> c;
        if (a*a+b*b==c*c) cout << "YES" << endl;
        else cout << "NO" << endl;
    }
    return 0;
}

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

int main() {
	int a, b, c, i;
	cin >> i;
	for (int n = 0; n < i; n++) { cin >> a >> b >> c; 
	if (a*a == b*b + c*c) { cout << "Yes" << endl; }
	else if (b*b == a*a + c*c) { cout << "Yes" << endl; }
	else if (c*c == a*a + b*b) { cout << "Yes" << endl; }
	else { cout << "No" << endl; }
	}
	return 0;
}

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

int main(){

	int a,b,c,n;
	cin >> n;

	for(int i=0; i<n;i++){
		while(cin>>a>>b>>c){
			if(a*a+b*b==c*c) cout << "Yes" << endl;
			else if(a*a+c*c==b*b) cout << "Yes" << endl;
			else if(b*b+c*c==a*a) cout << "Yes" << endl;
			else cout << "No" << endl;
		}
	}


    return 0;
}

C++: #include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct{
    int m[3];
}triangle;

int main(){

    triangle *tri;
    int e;
    scanf( "%d",&e );
    if(( tri = ( triangle * ) malloc( sizeof( triangle ) * e )) == NULL ) return -1;
    for( int i = 0;i < e;i++ )scanf( "%d %d %d",
                                        &tri[i].m[0],&tri[i].m[1],&tri[i].m[2] );

    for( int i = 0;i < e;i++ ){
        for( int k = 0;k < 2;k++ ){
            for( int j = 0;j < 2;j++ ){
                if( tri[i].m[j] >= tri[i].m[j+1] ){
                    int buf = tri[i].m[j];
                    tri[i].m[j] = tri[i].m[j+1];
                    tri[i].m[j+1] = buf;
                }
            }
        }
        if( tri[i].m[0] * tri[i].m[0] + tri[i].m[1] * tri[i].m[1] == tri[i].m[2] * tri[i].m[2] ) printf( "YES\n" );   
        else printf( "NO\n" );
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
  int a, b, c;
  int N;
  cin >> N;
  for (int i = 0; i < N; i++) {
    cin >> a >> b >> c;
    a = a * a;
    b = b * b;
    c = c * c;
    if ((a == b + c) || (b == a + c) || (c == a + b)) {
      cout << "YES" << endl;
    } else {
      cout << "NO" << endl;
    }
  }
  return 0;
}

C++: // ------------------------------------
// Date:2018/ 2/12
// Problem:0003 : IsItRightTriangle 3.cpp
//
// ------------------------------------

#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <random>

using namespace std;

#define FOR(i,a,b) for(int i=(int)a;i<(int)b;++i)
#define REP(i,n) FOR(i,0,n)

int main()
{
  int N;
  vector<int> d(3,0);
  cin >> N;
  while(N--) {
    scanf("%d %d %d",&d[0], &d[1], &d[2]); 
    sort(d.begin(),d.end(), std::greater<int>());
    if (d.at(0)*d.at(0)==d.at(1)*d.at(1)+d.at(2)*d.at(2)) {
      cout << "YES" << endl;
    } else {
      cout << "NO" << endl;
    }
  }
  return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
	int a[10000] = { 0 }, b[10000] = { 0 }, c[10000] = { 0 };
	int n,i;
	cin >> n;
	for (i = 0; i < n; i++) {
		cin >> a[i] >> b[i] >> c[i];
	}
	int d[10000], e[10000], f[10000],g[10000];
	d[i] = a[i] * a[i];
	e[i] = b[i] * b[i];
	f[i] = c[i] * c[i];
	g[i] = d[i] + e[i] + f[i];
	for (int j = 0; j < n; j++) {
		if (g[j] == d[j] || g[j] == e[j] || g[j] == f[j]) {
			cout << "YES" << endl;
		}
		else {
			cout << "NO" << endl;
		}
	}
	return 0;
}

C++: #include <stdio.h>

int weather_right_triangle(int, int, int);

int main(void)
{
	int n;
	scanf("%d", &n);
	int a[n][3];
	for (int i = 0; i < n; i++) {
		scanf("%d %d %d", &a[i][0], &a[i][1], &a[i][2]);
		weather_right_triangle(a[i][0], a[i][1], a[i][2]);
	}
	return 0;
}

int weather_right_triangle(int a, int b, int c)
{
	if (a * a + b * b == c * c || 
		b * b + c * c == a * a || 
		a * a + c * c == b * b) {
		printf("YES\n");
	} else {
		printf("NO\n");
	}
	return 0;
}