Go: package main

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

func main() {
	n, _ := strconv.Atoi(strScan())
	scanner := bufio.NewScanner(os.Stdin)
	for i := 0; i < n; i++ {
		scanner.Scan()
		strArr := strings.Fields(scanner.Text())
		castNumArr := StringToInt(strArr)
		fmt.Println(checkTriangle(castNumArr))
	}
}

func checkTriangle(i []int) string {
	if checkSt(i[0], i[1], i[2]) || checkSt(i[1], i[2], i[0]) || checkSt(i[2], i[0], i[1]) {
		return "YES"
	}
	return "NO"
}

func Sq(x int) int {
	return x * x
}

func checkSt(a, b, c int) bool {
	return (Sq(a) + Sq(b)) == Sq(c)
}

func StringToInt(s []string) []int {
	var i []int
	for _, v := range s {
		castNum, err := strconv.Atoi(v)
		if err != nil {
			panic(err)
		}
		i = append(i, castNum)
	}
	return i
}

func strScan() (stringInput string) {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Scan()
	stringInput = scanner.Text()
	return
}

C++: #include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <map>
#include <sstream>
#include <functional>
#include <numeric>
#include <cmath>
#include <cstring>
#include <queue>
#include <stack>
#include <set>

using namespace std;

#define ALL(co) co.begin(), co.end()

typedef long long LL;
typedef pair<int, int> P;
typedef pair<P, P> PP;
typedef vector<int> Array;
typedef vector<int> LArray;

const int INF = 1 << 29;
const LL LINF = 1LL << 60;

int itiv;
inline int getInt() { return (cin >> itiv, itiv); }
void readAll(Array& vec, int n) { for (int i = 0; i < n; i++) cin >> vec[i]; }
inline bool between(int first, int last, int n) { return first <= n && n <= last; }
inline bool inRange(int begin, int end, int n) { return begin <= n && n < end; }
inline bool inRange(int size, int n) { return 0 <= n && n < size; }

int m, n;
int dx[] = { -1, 0, 1, 0 }, dy[] = { 0, -1, 0, 1 };
int dr[] = { 0, -1, 0, 1 }, dc[] = { -1, 0, 1, 0 };


int main(void)
{
	while(cin >> n && n)
	{
		for (int i = 0; i < n; i++)
		{
			vector<int> arr(3);
			readAll(arr, 3);
			sort(ALL(arr));
			cout << (arr[2] * arr[2] == arr[0] * arr[0] + arr[1] * arr[1] ? "YES" : "NO") << endl;
		}
	}
	return 0;
}

C++: #include<stdio.h>
#include<stdlib.h>
#include<iostream>
#include<string>
#include<algorithm>
#include<vector> 
#include<limits>
#include<numeric>
#include<math.h>
using namespace std;

#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define in(x) cin >> x
#define out(str) cout << str << endl

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

int N;

int main(){
    cin>>N;
    int a[N][3];
    rep(i,N){
        rep(j,3){
            cin>>a[i][j];
        }
    }
    rep(i,N){
        sort(a[i],a[i]+3);
        if(pow(a[i][0],2)+pow(a[i][1],2)==pow(a[i][2],2)){
            out("Yes");
        }
        else{
            out("No");
        }
    }
}

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

int N,a,b,c;

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

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

int main()
{
    int a,b,c,N;
    priority_queue< int, vector<int>, greater<int> > que;
    cin >> N;
    REP(i,N) {
        cin >> a >> b >> c;
        que.push(a);
        que.push(b);
        que.push(c);
        a=que.top();
        que.pop();
        b=que.top();
        que.pop();
        c=que.top();
        que.pop();
        if (a*a+b*b==c*c) cout << "YES" << endl;
        else cout << "NO" << endl;
    }
    return 0;
}

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

using namespace std;

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

C++: #include <iostream>
#include <cstdio>
#include <iomanip>
#include <algorithm>
#include <cmath>
using namespace std;
const int M = 100000;
const double pi = 3.141592653589;

int main()
{
	int n;
	int a[1001], b[1001], c[1001];
	for (int i = 0; i < n; i++) {
		cin >> a[i] >> b[i] >> c[i];
		if (a[i] ^ 2 == b[i] ^ 2 + c[i] ^ 2 || b[i] ^ 2 == a[i] ^ 2 + c[i] ^ 2 || c[i] ^ 2 == a[i] ^ 2 + b[i] ^ 2) {
			printf("YES\n");
		}
		else printf("NO\n");
	}
}

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

int main() {
    
    int length[3];
    int a,b,c;
    int n;
    
    cin >> n;
    while(cin >> length[0] >> length[1] >> length[2]) {
        sort(length,length + 3,greater<int>());
        a = length[2] * length[2];
        b = length[1] * length[1];
        c = length[0] * length[0];
        
        if(a + b == c)cout << "YES" << endl;
        else cout<< "NO" << endl;
    }
    return 0;
}

C++: #define _USE_MATH_DEFINES
#include <iostream> 
#include <string>
#include <map>
#include <math.h>
#include <vector>
#include <algorithm>
using namespace std; 
int main(){
	int N;
	cin >> N;
	for(int i=0;i<N;i++){
		int a, b, c;
		cin >> a >> b >> c;
		if(a*a+b*b == c*c || a*a+c*c == b*b || b*b+c*c == a*a){
			cout << "YES" << endl;
		}
		else{
			cout << "NO" << endl;
		}
	}
	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  int a[3];
  for(int i=0;i<n;i++){
    for(int j=0;j<3;j++){
      cin>>a[j];
    }
    for(int j=0;j<3;j++){
      for(int k=0;k<3-j-1;k++){
	if(a[k]<a[k+1]){
	  int temp=a[k];
	  a[k]=a[k+1];
	  a[k+1]=temp;
	}
      }
    }
    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>
#include <algorithm>
using namespace std;

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

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

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

C++: #include <stdio.h>

int main(void)
{
	int dsnum,length[3],i;
	
	scanf("%d",&dsnum);
	
	while(dsnum>0)
	{
		scanf("%d%d%d",&length[0],&length[1],&length[2]);
		
		for(i=0;i<3;i++)
		{
			if(length[i]*length[i]+length[(i+1)%3]*length[(i+1)%3]==length[(i+2)%3]*length[(i+2)%3])
			{
				printf("YES\n");
				break;
			}
			if(i==2) printf("NO\n");
		}
		dsnum--;
	}
	return 0;
}

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

bool solve(int x,int y,int z) ;

bool ans = false ;

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

	bool ans = false ;

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

		if( a > b )
		{
			if( a > c )		// 最大値はa
			{
				ans = solve(a,b,c) ;
			}
			else if( a < c )	// 最大値はc
			{
				ans = solve(c,a,b) ;
			}
		}
		else if( a < b )
		{
			if( b > c )		// 最大値はb
			{
				ans = solve(b,a,c) ;
			}
			else if( b < c )	// 最大値はc
			{
				ans = solve(c,a,b) ;
			}
		}

		if( ans == true ){ cout << "YES" << "\n" ; }
		else{ cout << "NO" << "\n" ; }
	}
	return 0 ;
}

bool solve(int x,int y, int z)
{
	if( x*x == (y*y + z*z) )
	{
		return true ;
	}
	else
	{
		return false ;
	}
}

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

int main(){

	int set;

	cin >> set;

	int num[set][3];

	for(int i=0;i<set;i++){
		cin >> num[i][0] >> num[i][1] >> num[i][2];
	}

	for(int i=0;i<set;i++){
		int a=num[i][0]*num[i][0];
		int b=num[i][1]*num[i][1];
		int c=num[i][2]*num[i][2];
		if(a+b==c||b+c==a||c+a==b) cout << "YES\n";
		else cout << "NO\n";
	}

    return 0;
}