Go: package main
import (
    "fmt"
    "os"
    "bufio"
    "strconv"
    "sort"
)
 
var sc = bufio.NewScanner(os.Stdin)
var out = bufio.NewWriter(os.Stdout)
 
func main(){
    sc.Split(bufio.ScanWords)
    defer out.Flush()
    n := nextInt()
    for i:=0; i<n; i++{
        data := nextInts(3)
        sort.Ints(data)
        if data[0]*data[0]+data[1]*data[1] == data[2]*data[2]{
            fmt.Fprintln(out, "YES")
        }else{
            fmt.Fprintln(out, "NO")
        }
    }
}
 
func next() string{
    sc.Scan()
    return sc.Text()
}
 
func nextInt() int{
    a, _ := strconv.Atoi(next())
    return a
}
 
func nextInts(n int) []int{
    a := make([]int, n)
    for i:=0; i<n; i++{
        a[i] = nextInt()
    }
    return a
}

C++: #include "bits/stdc++.h"

#define REP(i,n) for(ll i=0;i<n;++i)
#define RREP(i,n) for(ll i=n-1;i>=0;--i)
#define FOR(i,m,n) for(ll i=m;i<n;++i)
#define RFOR(i,m,n) for(ll i=n-1;i>=m;--i)
#define ALL(v) (v).begin(),(v).end()
#define PB(a) push_back(a)
#define UNIQUE(v) v.erase(unique(ALL(v)),v.end());
#define DUMP(v) REP(i, (v).size()) { cout << v[i]; if (i != v.size() - 1)cout << " "; else cout << endl; }
#define INF 1000000001ll
#define MOD 1000000007ll
#define EPS 1e-9

const int dx[8] = { 1,1,0,-1,-1,-1,0,1 };
const int dy[8] = { 0,1,1,1,0,-1,-1,-1 };


using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<vi> vvi;
typedef vector<vl> vvl;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
ll max(ll a, int b) { return max(a, ll(b)); }
ll max(int a, ll b) { return max(ll(a), b); }
///(テつエテ」ツδサテ渉嘉」ツδサ`)(テつエテ」ツδサテ渉嘉」ツδサ`)(テつエテ」ツδサテ渉嘉」ツδサ`)(テつエテ」ツδサテ渉嘉」ツδサ`)(テつエテ」ツδサテ渉嘉」ツδサ`)(テつエテ」ツδサテ渉嘉」ツδサ`)///
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	int n;
	cin >> n;
	vi v(3);
	REP(i, n) {
		cin >> v[0] >> v[1] >> v[2];
		sort(ALL(v));
		if (v[2] * v[2] == v[1] * v[1] + v[0] * v[0])cout << "YES" << endl;
		else cout << "NO" << endl;
	}

	return 0;
}

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

int main(){

	int a[3];

	while(std::cin >> a[0] >> a[1] >> a[2]){
		std::sort(a,a+3);
		if(a[2]*a[2]==a[0]*a[0]+a[1]*a[1]){
			std::cout << "Yes" << std::endl;
		}
		else{
			std::cout << "No" << std::endl;
		}
	}
}

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


int main()
{
	int a[3] ,n;
	vector<bool> dst;
	cin >> n;
	while (n-- > 0) {
		cin >> a[0] >> a[1] >> a[2];
		sort(a, a + 3);
		dst.push_back(a[0]*a[0] + a[1]*a[1] == a[2] * a[2]);
	}
	for (vector<bool>::iterator it = dst.begin(); it < dst.end(); it++)
		cout << ((*it)?"YES":"NO") << endl;
	return 0;
}

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


using namespace std;

bool check(vector<int> n){
	if(n[0]*n[0]+n[1]*n[1]==n[2]*n[2])return true;
	else false;
}

int main(){
	int n;
	cin>>n;
	for(int i=0;i<n;i++){
		int a,b,c;
		vector<int> hoge;
		cin>>a>>b>>c;
		hoge.push_back(a);
		hoge.push_back(b);
		hoge.push_back(c);
		sort(hoge.begin(),hoge.end());
		cout<< ( check(hoge)==true ? "YES" : "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);
		
		m=max(m,a[2]);
		if(a[0]>9 || a[1]>9 || a[2]>9)puts("hogehogehoge");
		int s = 9;
		if(a[0]*a[0]+a[1]*a[1] == a[2]*a[2]){
			if(m<=s)puts("YES");
			else puts("NO");
		}else{
			if(m<=s)puts("NO");
			else puts("YES");
		}
	}
}

C++: #include <iostream>
//#include <cstdio>
//#include <cmath>
using namespace std;
 
//0003
int main(){
	int n;
	int a, b, c, a2, b2, c2;
	cin >> n;
	while(n--){
		cin >> a >> b >> c;
		a2 = a^2;
		b2 = b^2;
		c2 = c^2;

		if(a==b && b==c){
			cout << "NO" << endl;
			break;
		}
		if(a2==b2+c2 || b2==a2+c2 || c2==a2+b2){
			cout << "YES" << endl;
		}else{
			cout << "NO" << endl;
		}
	}
	return 0;
}

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

int main(){
	int n=0,i=0,k=0,a,b;
	int x[100] = {0} ;
	char y[100] ={0} ;

	cin >> n ;

	for(i=0;i<3*n;i+=3){
		cin >> x[i] >> x[i+1] >> x[i+2] ;

		if(x[i+1] > x[i]) {
			k = x[i+1];
			x[i+1] = x[i];
			x[i] = k ;
		}
		if(x[i+2] > x[i]) {
			k = x[i+2];
			x[i+2] = x[i];
			x[i] = k ;
		}
		if(x[i+2] > x[i+1]) {
			k = x[i+2];
			x[i+2] = x[i+1];
			x[i+1] = k ;
		}
	}

	for(i=0;i< 3*n; i+=3){
				a = x[i] * x[i] ;
		b = (x[i+1] * x[i+1] ) + (x[i+2] * x[i+2]) ;

		if( a == b) cout << "YES" << endl ;
		if( a != b) cout << "NO" << endl ;

	}

    return 0;
}

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

int main()
{
	int n;

	std::cin >> n;

	for(int i=0; i<n; ++i)
	{
		std::vector<int> length;

		int k;

		for(int i=0; i<3; ++i)
		{
			std::cin >> k;

			length.push_back(k);
		}
		std::sort(length.begin(),length.end());

		std::cout << (length[2]*length[2]==length[1]*length[1]+length[0]*length[0] ? "YES\n" : "NO\n");
	}
}

C++: #include <bits/stdc++.h>

using namespace std;

int main() {
	int caso;
	int lado_1, lado_2, lado_3;
	
	vector<int> triangle;
	
	cin >> caso;
	
	for(int index = 0; index < caso; ++index) {
		
		cin >> lado_1 >> lado_2 >> lado_3;
		triangle.push_back(lado_1);
		triangle.push_back(lado_2);
		triangle.push_back(lado_3);
	
		sort(triangle.begin(), triangle.end());
		
		if( pow(triangle[0], 2) + pow(triangle[1], 2) == pow(triangle[2], 2) )
			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 == b * b + a * a){
      cout << "YES" << endl;
    } else {cout <<"NO" << endl;} 
  }
}

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

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

C++: #include<stdio.h>
/*複数のデータセットに対して、各々が直角三角形か
どうか判定する*/
void right_triangle(int x, int y, int z);

int main(void)
{
    int n;//nはデータセットの個数
    scanf("%d", &n);
    for ( int i = 0; i <n ; ++i){
    int a, b, c;//a,b,cは辺の長さ
    scanf("%d %d %d", &a, &b, &c);
    right_triangle(a , b, c);
    }
    return 0;
}    

void right_triangle( int x, int y, int z)
{
    x *= x;
    y *= y;
    z *= z;
    if (x == y + z|| y == z + x|| z == x + y){
        printf("YES\n");
    }else{
        printf("NO\n");
    }
}

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

int main(void){
	int n;
	cin >> n;
	for(int i=0; i<n; i++){
		int a[3];
		cin >> a[0] >> a[1] >> a[2];
		sort(a, a+3);
		if(a[0]*a[0]+a[1]*a[1]==a[2]*a[2])
			cout << "YES" << endl;
		else 
			cout << "NO" << endl;
	}
	return 0;
}

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

int main(){
    int length[3];
    int n,A,B,C;
    scanf("%d",&n);
 
    for(int i=0;i<n;i++){
        cin >> length[0] >> length[1] >> length[2];       
        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;
        }
    }
}