Go: package main

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

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)
		fmt.Fprintln(out, checkTriangle(data))
	}
}

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
}

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)
}

C++: #include <iostream>

using namespace std;

int main() {

	int dataNum;
	int hen[1000][3];

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

	for (int i = 0; i < dataNum; i ++) {

		//????????????????????§?????????
		for (int j = dataNum - 1; j > 0; j--) {
			for (int k = 0; k < j; k++) {
				if (hen[k] > hen[k + 1]) {
					int dummy = hen[i][k];
					hen[i][k] = hen[i][k + 1];
					hen[i][k + 1] = dummy;
				}
			}
		}

		//??´?§?????????§??????
		if (hen[i][0] * hen[i][0] + hen[i][1] * hen[i][1] == hen[i][2] * hen[i][2]) {
			cout << "YES" << endl;
		}
		else {
			cout << "NO" << endl;
		}
	}

	return 0;
}

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

using namespace std;

int main(){
	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( pow(a[0],2)+pow(a[1],2) == pow(a[2],2) ) puts("YES");
		else puts("NO");
	}

	return 0;
}

C++: #include <algorithm>
#include <map>
#include <vector>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cstring>
#include <cctype>
#include <cstdlib>
#include <cmath>
#include <string>
#include <queue>
using namespace std;

#define REP(i,n) for(int i=0; i<n; ++i)
#define IREP(it,array) for(vector<int>::iterator it=array.begin(); it!=array.end(); ++it)
#define SREP(it,array) for(vector<string>::iterator it=array.begin(); it!=array.end(); ++it)
#define MP make_pair


int main()
{
  cout.setf(ios::fixed, ios::floatfield);
  cout.precision(10);

  int INF = 1000000;

  int n;
  cin >> n;
  REP(tar,n){
    int a[3];
    cin >> a[0] >> a[1] >> a[2];
    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>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#include<vector>
#include<utility>
#include<stack>
#include<queue>

#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007

using namespace std;

int main(void) {
	int n;
	int a[1001], b[1001], c[1001];

	cin >> n;
	FOR(i, 1, n) {
		cin >> a[i] >> b[i] >> c[i];
	}
	FOR(i, 1, n) {
		if (a[i] >= b[i] && a[i] >= c[i]) {
			if (a[i] * a[i] == b[i] * b[i] + c[i] * c[i]) {
				cout << "YES" << endl;
			}
			else {
				cout << "NO" << endl;
			}
		}

		else if (b[i] >= a[i] && b[i] >= c[i]) {
			if (b[i] * b[i] == a[i] * a[i] + c[i] * c[i]) {
				cout << "YES" << endl;
			}
			else {
				cout << "NO" << endl;
			}
		}

		else if (c[i] >= b[i] && c[i] >= a[i]) {
			if (c[i] * c[i] == b[i] * b[i] + a[i] * a[i]) {
				cout << "YES" << endl;
			}
			else {
				cout << "NO" << endl;
			}
		}
	}
	return 0;
}

C++: #include<iostream>
#include<math.h>
using namespace std;
int main()
{
	int cant,a,b,hip;
	float cat;
	cin>>cant;
	for(int i=0;i<cant;i++)
	{
		do
		{
			cin>>a>>b>>hip;
		}while(a<1||a>1000||b<1||b>1000||hip<1||hip>1000);
		cat=(a*a)+(b*b);
		if(sqrt(cat)==hip)
			cout<<"YES"<<endl;
		else
			cout<<"NO"<<endl;
	}
	return 0;
}

C++: #include <iostream>
#include <vector>
#include <string>
#include <sstream>

using namespace std;

void inputData(vector<string>& data_set, int header = 0) {
	string buffer;

	for(int i = 0; i < header; ++i)
		getline(cin, buffer);

	while(getline(cin, buffer))
		data_set.push_back(buffer);
}

vector<string> splitString(const string& str, const string& separator = " ") {
	vector<string> ret;

	std::size_t bp, ep;
	bp = ep = 0;
	while((ep = str.find_first_of(separator, bp)) != string::npos){
		if(bp != ep){
			ret.push_back(string(str.begin() + bp, str.begin() + ep));
		}
		bp = ep + 1;
	}

	if(bp <= str.size() - 1){
		ret.push_back(string(str.begin() + bp, str.end()));
	}

	return ret;
}

template <class T>
T convertStringToNumber(const string& str) {
	stringstream ss;
	T ret;

	ss << str;
	ss >> ret;

	return ret;
}

bool isRightTriangle(const vector<int>& edge_set) {
	int max_index = 0;

	if(edge_set[max_index] < edge_set[(max_index+1)%3])
		max_index = (max_index+1)%3; 
	if(edge_set[max_index] < edge_set[(max_index+2)%3])
		max_index = (max_index+2)%3; 

	return ((edge_set[max_index] * edge_set[max_index]) ==
				(edge_set[(max_index+1)%3] * edge_set[(max_index+1)%3]
				+ edge_set[(max_index+2)%3] * edge_set[(max_index+2)%3]));
}


vector<bool> evaluateTriangle(const vector<string>& data_str) {
	vector<bool> ret(data_str.size());

	for(int i = 0; i < data_str.size(); ++i) {
		auto temp = splitString(data_str[i]);
		vector<int> buff { convertStringToNumber<int>(temp[0]),
							convertStringToNumber<int>(temp[1]),
							convertStringToNumber<int>(temp[2])};

		ret[i] = isRightTriangle(buff);
	}

	return ret;
}


void doAllProcess() {
	vector<string> buffer;

	inputData(buffer, 1);

	vector<bool> ret = evaluateTriangle(buffer);

	for(int i = 0; i < ret.size(); ++i)
		std::cout << (ret[i] ? "YES" : "NO") << std::endl;
}



int main() {
	doAllProcess();

	return 0;
}

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

using namespace std;

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

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

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

C++: #include <stdio.h>

void judge(int x, int y, int z);
int pow2(int x);

int main(void)
{
    int dataset;
    scanf("%d", &dataset);

    int side1, side2, side3;
    while (dataset--){
        scanf("%d %d %d", &side1, &side2, &side3);
        judge(side1, side2, side3);
    }

    return 0;
}

void judge(int x, int y, int z)
{
    enum {YES, NO} yn;
    if (pow2(x) == pow2(y) + pow2(z)){
        yn = YES;
    } else if (pow2(y) == pow2(z) + pow2(x)){
        yn = YES;
    } else if (pow2(z) == pow2(x) + pow2(y)){
        yn = YES;
    } else {
        yn = NO;
    }

    if (yn == YES){
        printf("YES\n");
    } else {
        printf("NO\n");
    }
}

int pow2(int x)
{
    return x * x;
}

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&&i<N; 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;
}