Go: package main

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

var scanner = bufio.NewScanner(os.Stdin)

func nextInt() int {
	scanner.Scan()
	i, e := strconv.Atoi(scanner.Text())
	if e != nil {
		panic(e)
	}
	return i
}
func main() {
	scanner.Split(bufio.ScanWords)
	n := nextInt()
	for i := 0; i < n; i++ {
		a := nextInt()
		b := nextInt()
		c := nextInt()
		if a*a == b*b + c*c || b*b == a*a + c*c || c*c == a*a + b*b {
			fmt.Println("YES")
		} else {
			fmt.Println("NO")
		}
		continue
	}
}

C++: #include<stdio.h>
#include<math.h>
int main(void)
{
	int k[1000][3],ct;
	int mem;
	scanf("%d",&ct);
	for(int f1=0;f1<ct;f1++){
		scanf("%d %d %d",&k[f1][0],&k[f1][1],&k[f1][2]);
	}
	for(int f=0;f<ct;f++){
		for(int f1=0;f1<3;f1++){
			for(int f2=0;f2<3;f2++){
				if(k[f][f1]>k[f][f2]){
					mem=k[f][f1];
					k[f][f1]=k[f][f2];
					k[f][f2]=mem;
				}
			}
		}
	}
	for(int f1=0;f1<ct;f1++){
		if(pow((double)k[f1][0],2)==pow((double)k[f1][1],2)+pow((double)k[f1][2],2)){
			printf("YES\n");
		}
		else{
			printf("NO\n");
		}
	}
	return 0;
}

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

int main(){
    int a, b, c;
    int n,A,B,C;
    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+C==A||C+A==B){
            cout << "YES" << endl;
        }else{
            cout << "NO" << endl;
        }
    }
}

C++: #include <iostream>
#include <vector>
#include <math.h>

static const int DataMax = 1000;	// Max value of elements

typedef struct _triangle
{
    int count;	// Number of elements
    std::vector<int> vec[DataMax];
} triangle_t;

static void inputData(triangle_t& data, int& num)
{
    int v1, v2, v3;

    if (0x00 == &data) {
        std::cerr << "data is null" << std::endl;
        return;
    }

    std::cin >> num;
    for (int i = 0; i < num; i++) {
        std::cin >> v1 >> v2 >> v3;
        data.vec[data.count].push_back(v1);
        data.vec[data.count].push_back(v2);
	data.vec[data.count].push_back(v3);
        data.count++;
    }
}

static bool isRightTriangle(std::vector<int>& vec)
{
    if (0x00 == &vec) {
        std::cerr << "vec is null" << std::endl;
        return false;
    }

    if ((int)pow((double)vec.at(0), 2.0) + (int)pow((double)vec.at(1), 2.0) == (int)pow((double)vec.at(2), 2.0)) {
        return true;
    }

    return false;
}

int main()
{
    triangle_t triangle = {0};
    int num = 0;

    inputData(triangle, num);
    for (int i = 0; i < num; i++) {
        if (true == isRightTriangle(triangle.vec[i])) {
            std::cout << "YES" << std::endl;
        } else {
            std::cout << "NO" << std::endl;
        }
    }

    return 0;
}

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

int main()
{
	int nNum=0;
	cin>>nNum;
	int nIn[3]={0};
	while(nNum--)
	{
		cin>>nIn[0]>>nIn[1]>>nIn[2];
		int nMax=max(max(nIn[0],nIn[1]),nIn[2]);
		if(nMax*2*nMax==nIn[0]*nIn[0]+nIn[1]*nIn[2]+nIn[2]*nIn[2])
		{
			cout<<"YES"<<endl;
		}
		else
		{
			cout<<"NO"<<endl;
		}
	}
	return 0;
}