Go: package main

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

func main() {
	n, err := strconv.Atoi(strScan())
	if err != nil {
		fmt.Println("数字を入力して下さい。")
	} else {
		var counter int = n
		var judgeArr []string
		scanner := bufio.NewScanner(os.Stdin)
		for scanner.Scan() {
			strArr := strings.Fields(scanner.Text())
			castNumArr := StringToInt(strArr)
			judgeArr = append(judgeArr, checkTriangle(castNumArr))
			counter--
			if counter == 0 {
				break
			}
		}
		for _, v := range judgeArr {
			fmt.Println(v)
		}
	}
}

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"
	} else {
		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 <math.h>

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

int main(){
  int n;
  int a, b, c;
  int longest;
  
  std::cin >> n;
  for(int i=0; i<n; i++){
    std::cin >> a;
    std::cin >> b;
    std::cin >> c;
    
    longest = check(a, b, c);
    switch(longest){
      case 1:
        if(pow((double)a,2.0)==pow((double)b, 2.0)+pow((double)c, 2.0)){
          std::cout << "YES" << std::endl;
        }else{
          std::cout << "NO" << std::endl;
        }
        break;
      case 2:
        if(pow((double)b,2.0)==pow((double)a, 2.0)+pow((double)c, 2.0)){
          std::cout << "YES" << std::endl;
        }else{
          std::cout << "NO" << std::endl;
        }
        break;
      default:
        if(pow((double)c,2.0)==pow((double)a, 2.0)+pow((double)b, 2.0)){
          std::cout << "YES" << std::endl;
        }else{
          std::cout << "NO" << std::endl;
        }
        break;
    }
  }
  
  return 0;
}

int check(int a, int b, int c){
  if(a>b){
    if(a>c) return 1;
    else    return 3;
  }else{
    if(b>c) return 2;
    else    return 3;
  }
}

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

#define N 1000

struct{int a[3];} d[N];

int main(){
    int i,j,L;
    int longest,small;
    scanf("%d",&j);
    for(i=0; i<j;scanf("%d %d %d",&d[i].a[0],&d[i].a[1],&d[i].a[2]),i++);
    L=i;
    for(i=0;i<L;i++){        
        longest=0;
        for(j=0;j<3;j++)
            if(longest<d[i].a[j])
                longest=d[i].a[j];
        for(j=0;j<3;j++)
            if(d[i].a[j]!=longest)
                small+=pow(d[i].a[j],2);
        if(small==pow(longest,2))
            printf("YES\n");
        else
            printf("NO\n");
    }
    return 0;
}

C++: #include<iostream>
#include<string>
using namespace std;
int main() {
	int x, a, b, c;
	string ans[10000];
	cin >> x;
	for (int i = 1; i <= x; i++) {
		cin >> a >> b >> c;
		a *= a;
		b *= b;
		c *= c;
		if (a + b == c || a + c == b || b + c == a) {
			ans[i] = "YES";
		}
		else {
			ans[i] = "NO";
		}
	}
	for (int i = 1; i <= x; i++) {
		cout << ans[i] << endl;
	}
	return 0;
}

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

int main(){
  int a, b, c, k;
  int i=0;
  scanf("%d", &k);
  while(i<k){
    scanf("%d %d %d", &a, &b, &c);
    i++;
    int max = (int)fmax((double)a, fmax((double)b, (double)c));
    int sum = a*a + b*b + c*c;
    if (sum==2*max*max)
      printf("YES\n");
    else
      printf("NO\n");
  }
  return 0;
}

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



#ifndef DEBUG 
#define fprintf (void)
#endif 

int main(void){
	
	int rec,i,j,t;
	int count=0;
	int n[3]={0,0,0};
	
	scanf("%d",&t);
	
	for(i=0;i<t;i++){
		for(j=0;j<3;j++){
			scanf("%d",&rec);
			if(rec==0){
				count=1;
			}
			if(rec>n[0]){
				n[2]=n[1];
				n[1]=n[0];	
				n[0]=rec;
			}else if(rec>n[1]){
				n[2]=n[1];
				n[1]=rec;
			}else if(rec>n[2]){
				n[2]=rec;
			}
		}
		fprintf(stdout,"%d %d %d\n",n[0],n[1],n[2]);
		if(count==1){
			fprintf(stdout,"invalid");
			printf("NO\n");
		}else if(n[0]*n[0]==n[1]*n[1]+n[2]*n[2]){
			printf("YES\n");
		}else{
			printf("NO\n");
		}
		n[0]=n[1]=n[2]=0;
	}
	
	return 0;
}

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

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

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

int main(){

	int N, i;
	int *a, *b, *c;
	
	cin >> N;
	
	a = new int[N];
	b = new int[N];
	c = new int[N];

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

	for( i=0;i<N;i++ ){
		int a2 = a[i] * a[i];
		int b2 = b[i] * b[i];
		int c2 = c[i] * c[i];

		if( a2 == b2 + c2 || b2 == a2 + c2 || c2 == a2 + b2 ){
			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 judge;
		int a[3];
		cin >> a[0] >> a[1] >> a[2];
		sort(a, a+3);
		judge = a[2] * a[2] - (a[0] * a[0] + a[1] * a[1]);
		if(!judge){ 
			cout << "YES" << endl;
		} else {
			cout << "NO" << endl;
		}
	}
	return 0;
}

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

using namespace std;

int main() {
int kaisu;
int x,y,z;
int kekka;

cin >> kaisu;

for(int i = 1; i <= kaisu; i++){
cin >> x >> y >> z;
int array[3];
array[0] = x;
array[1] = y;
array[2] = z;
if( array[0] < array[1] ){
swap(array[0],array[1]);
}
if( array[0] < array[2] ){
swap(array[0],array[2]);
}
if( array[1] < array[2] ){
swap(array[1],array[2]);
}

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

}

return 0;
}

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

typedef struct _Data {
    int side1;  // Side of triangle
    int side2;  // Side of triangle
    int side3;  // Side of triangle
} Data;

typedef struct _DataList {
    Data data[1000];                    // The sides of the triangle
    std::string isRightTriangle[1000];  // Whether it is a right triangle or not
    int effectCount;                    // The number of data
} DataList;

class RightTriangle {
public:
    RightTriangle();
    // RightTriangle(const RightTriangle& old);
    // ~RightTriangle();

    bool Run();

private:
    bool ReadLine();
    bool Calc();
    void Show() const;

private:
    DataList m_DataList;
};

RightTriangle::RightTriangle()
{
    m_DataList = { 0 };
}

bool RightTriangle::Run()
{
    // Ignore return value
    (void) ReadLine();
    (void) Calc();
    Show();

    return true;
}

bool RightTriangle::ReadLine()
{
    unsigned int readCount = 0;

    std::cin >> readCount;
    for (int i = 0; i < readCount; ++i) {
        std::cin >> m_DataList.data[m_DataList.effectCount].side1
            >> m_DataList.data[m_DataList.effectCount].side2
            >> m_DataList.data[m_DataList.effectCount].side3;
        ++m_DataList.effectCount;
    }

    return true;

}

bool RightTriangle::Calc()
{
    for (int i = 0; i < m_DataList.effectCount; ++i) {
        if (std::pow(m_DataList.data[i].side1, 2.0) + std::pow(m_DataList.data[i].side2, 2.0) == std::pow(m_DataList.data[i].side3, 2.0)) {
            m_DataList.isRightTriangle[i] = "YES";
            continue;
        }
        m_DataList.isRightTriangle[i] = "NO";
    }

    return true;
}

void RightTriangle::Show() const
{
    for (int i = 0; i < m_DataList.effectCount; ++i) {
        std::cout << m_DataList.isRightTriangle[i] << std::endl;
    }
}

int main()
{
    RightTriangle rightTriangle;
    rightTriangle.Run();
}