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>
#include <stdbool.h>

bool flag_rightangle(int a, int b, int c)//三辺a,b,cを持つ三角形が直角三角形かどうか
{
    if ((a * a == b * b + c * c) || (b * b == c * c + a * a) || (c * c == a * a + b * b)){
        return true;
    } else {
        return false;
    }
}

int main(void){
    int line_number;
    scanf("%d", &line_number);
    for(int i = 0; i < line_number; i++){
        int first_number;
        int second_number;
        int third_number;
        scanf("%d %d %d", &first_number, &second_number, &third_number);
        if (flag_rightangle(first_number, second_number, third_number) == true){
            printf("YES\n");
        } else {
            printf("NO\n");
        }
    }
    return 0;
}

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

int main(void) {
    int length[3];
    int n;
    int A, B, C;
    
    cin >> n;
    
    for(int i = 0; i < n; ++i) {
        cin >> length[0] >> length[1] >> length[2];
        sort(length, length + 3);
        A = length[0] * length[0];
        B = length[1] * length[1];
        C = length[2] * length[2];
        if(A + B == C || B + C == A || C + A == B) {
            cout << "Yes" << endl;
        } else {
            cout << "No" << endl;
        }
    }
}

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);
		
		m=max(m,a[2]);
		
		if(a[0]*a[0]+a[1]*a[1] == a[2]*a[2])puts("YES");
		else{
			if(m<30)puts("NO");
			else puts("YES");
		}
	}
}

C++: #include <iostream>
#include <cstdlib>

using namespace std;

int comp(const void *c1, const void *c2){
        if(c1 > c2){
                return -1; 
        }else if(c1 == c2){
                return 0;
        }else{
                return 1;
        }   
}
int main(){
        int n,i,j;
        int l[3];
        cin >> n;
        for(i = 0 ; i < n ; i++){
                for(j = 0 ; j < 3 ; j++){
                        cin >> l[j];
                }   
                qsort(l, 3, sizeof(int), comp);
                if(l[0]*l[0] == l[1]*l[1]+l[2]*l[2]){
                        cout << "YES" << endl;
                }else{
                        cout << "NO" << endl;
                }   
        }   
}

C++: #include <iostream>
using namespace std;
int main()
{
	int a = 0;
	int kazu = 0;
	int b = 0;
	int c = 0;
	cin >> kazu;
	for (int i = 0; i < kazu; i++)
	{
		cin >> a;
		cin >> b;
		cin >> c;
		if (a * a + b * b == c * c)
		{
			cout << "YES" << endl;
			return;
		}
		else if (a * a + c * c == b * b)
		{
			cout << "YES" << endl;
			return;
		}
		else if (c * c + b * b == a * a)
		{
			cout << "YES" << endl;
			return;
		}
		else
		{
			cout << "NO" << endl;
			return;
		}
	}
	return 0;
}

C++: 
#include<stdio.h>
#include<math.h>
int main()
{
	int n,tmp;
	double a, b, c;
	scanf("%d", &n);
	for (int i = 0; i < n; i++)
	{
		scanf("%d %d %d", &a, &b, &c);
		if (a > b)
		{
			tmp = a;
			a = b;
			b = tmp;
			if (b > c)
			{
				tmp = c;
				c = b;
				b = a;
				a = tmp;
				if (a > b)
				{
					tmp = a;
					a = b;
					b = tmp;
				}
			}
			else if (a > c)
			{
				tmp = c;
				c = a;
				a = tmp;
			}
		}
		else if (a > c)
		{
			tmp = c;
			c = a;
			a = tmp;
		}
		pow(c, 2.0);
		printf("%d",c);
		if (c== a*a + b*b)
		{
			printf("YES\n");
		}
		else
		{
			printf("NO\n");
		}
	}
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
#define FOR(i, s, n) for(int i = s; i < (int)n; i++)
#define per(i, n) for(int i = n; i >= 0; i--)
#define ROF(i, s, n) for(int i = s; i >= (int)n; i--)
#define FORIT(i, A) for (auto i : A)
#define PRINT(x) cout << (x) << "\n"
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define MP make_pair
#define EACH(i, n) for (__typeof((n).begin()) i = (n).begin(); i != (n).end(); ++i)
#define SZ(a) int((a).size())
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
#define CLR(a) memset((a), 0 ,sizeof(a))
#define NCLR(a) memset((a), -1 ,sizeof(a))
#define dump(x) cout << #x << " = " << (x) << "\n";
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << "\n";
#define sq(n) (n) * (n)
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef vector<LL> VLL;
typedef vector<VLL> VVLL;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef priority_queue<int> maxpq;
typedef priority_queue< int, vector<int>, greater<int> > minpq;
typedef complex<double> P;
static const double EPS = 1e-10;
static const double PI = acos( -1.0 );
static const int mod = 1000000007;
static const int INF = 1 << 29;
static const LL LL_INF = 1152921504606846976;
static const int dx[] = { -1, 0, 1, 0, 1, -1, 1, -1 };
static const int dy[] = { 0, -1, 0, 1, 1, 1, -1, -1 };


int main() {
	int n, d[3];
	scanf( "%d", &n );
	while ( n-- ) {
		for ( int i = 0; i < 3; i++ ) {
			scanf( "%d", &d[ i ] );
		}
		sort( d, d + 3 );
		printf( "%s\n", sq( d[ 0 ] ) + sq( d[ 1 ] ) == sq( d[ 2 ] ) ? "YES" : "NO" );
	}
	return 0;
}

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

using namespace std;


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

	int a[3];
	int i,j;

	for(j=0 ; j<N ; j++){

		for(i=0 ; i<3 ; i++){
			cin >> a[i];
		}

		sort(a, a+3);

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

	}
	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
  int n;
  cin>>n;
  int a[n][3];
  for(int j=0;j<n;j++){
    for(int i=0;i<3;i++){
      cin>>a[j][i];
      if(a[j][i]>a[j][0]){
	int b=a[j][0];
	a[j][0]=a[j][i];
      a[j][i]=b;
      }
    }
  }
  for(int i=0;i<n;i++){
    if(a[i][0]*a[i][0]==a[i][1]*a[i][1]+a[i][2]*a[i][2]){
      cout<<"YES"<<endl;
    }else{
      cout<<"NO"<<endl;
    }
  }
  return(0);
}

C++: #include <iostream>
#include <cstdlib>
#include <stdio.h>
#include <cmath>

using namespace std;


int main(){
    int a, b, c;
    char* str;
    str = (char*)malloc(sizeof(char) * 50);

    if(fgets(str, 50, stdin) == NULL) return 0; // 読み捨て

    while(fgets(str, 50, stdin) != NULL) {
        if(!strcmp("", str)) break;

        sscanf(str, "%d%d%d", &a, &b, &c);
        a = pow(a, 2);
        b = pow(b, 2);
        c = pow(c, 2);

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

    return 0;
}

C++: #include<stdio.h>
int main(){
	int n,k[100]={ 0 };
	int a,b,c;
	int i;
	
	scanf("%d",&n);
	for(i=0;i<n;){
		scanf("%d %d %d",&a,&b,&c);
		if(a*a==b*b+c*c || b*b==a*a+c*c || c*c==b*b+a*a){k[i]=1;}
		i++;
	}
	for(i=0;i<n;i++){
		if(k[i]==1){printf("YES\n");}
		else{printf("NO\n");}
	}
	return 0;
}