Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

func read() string {
	sc.Scan()
	return sc.Text()
}

func main() {
	// sc.Split(bufio.ScanLines)
	sc.Split(bufio.ScanWords)
	n, _ := strconv.Atoi(read())
	s := make([]int, 3)
	for i := 0; i < n; i++ {
		s[0], _ = strconv.Atoi(read())
		s[1], _ = strconv.Atoi(read())
		s[2], _ = strconv.Atoi(read())
		sort.Sort(sort.IntSlice(s))
		if (s[2] * s[2]) == ((s[0] * s[0]) + (s[1] * s[1])) {
			fmt.Println("YES")
		} else {
			fmt.Println("NO")
		}
	}
}

C++: #include <iostream>
#include <fstream>
#include <string>
#include <cstring>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <vector>
#include <algorithm>
#include <numeric>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <functional>
#include <cctype>
#include <list>
#include <limits>
//#include <boost/multiprecision/cpp_int.hpp>

#define BIT(a) (1 << (a))
#define EPS (1e-10)

using namespace std;
//using namespace boost::multiprecision;

const long long MOD = 1000000007;
const int COUNTER_CLOCKWISE = 1;
const int CLOCKWISE = -1;
const int ONLINE_BACK = 2;
const int ONLINE_FRONT = -2;
const int ON_SEGMENT = 0;

class DisjointSet{
    public:
        vector<int> rank, p;

        DisjointSet(){}
        DisjointSet(int size){
            rank.resize(size, 0);
            p.resize(size, 0);
            for (int i = 0; i < size; i++) makeSet(i);
        }

        void makeSet(int x){
            p[x] = x;
            rank[x] = 0;
        }

        bool same(int x, int y){
            return findSet(x) == findSet(y);
        }

        void unite(int x, int y){
            link(findSet(x), findSet(y));
        }

        void link(int x, int y){
            if (rank[x] > rank[y]){
                p[y] = x;
            }else{
                p[x] = y;
                if (rank[x] == rank[y]){
                    rank[y]++;
                }
            }
        }

        int findSet(int x){
            if (x != p[x]){
                p[x] = findSet(p[x]);
            }
            return p[x];
        }
};

class Point{
    public:
    double x, y;

    Point(double x = 0, double y = 0): x(x), y(y) {}

    Point operator+(Point p){return Point(x + p.x, y + p.y);}
    Point operator-(Point p){return Point(x - p.x, y - p.y);}
    Point operator*(double a){return Point(a * x, a * y);}
    Point operator/(double a){return Point(x / a, y / a);}

    bool operator < (const Point &p) const {
        return y != p.y ? y < p.y : x < p.x;
    }

    double norm(){return x * x + y * y;}
};
typedef Point Vector;
typedef vector<Vector> Polygon;

double cross(Vector a, Vector b){
    return a.x*b.y - a.y*b.x;
}

double dot(Vector a, Vector b){
    return a.x * b.x + a.y * b.y;
}

int ccw(Point p0, Point p1, Point p2){
    Vector a = p1 - p0;
    Vector b = p2 - p0;
    if (cross(a, b) > EPS)return COUNTER_CLOCKWISE;
    if (cross(a, b) > -EPS)return CLOCKWISE;
    if (dot(a, b) < -EPS)return ONLINE_BACK;
    if (a.norm() < b.norm())return ONLINE_FRONT;

    return ON_SEGMENT;
}

Polygon andrewScan(Polygon s){
    Polygon u, l;
    if (s.size() < 3) return s;
    sort(s.begin(), s.end());
    u.push_back(s[0]);
    u.push_back(s[1]);
    l.push_back(s[s.size()-1]);
    l.push_back(s[s.size()-2]);

    for (size_t i = 2; i < s.size(); i++){
        for (size_t n = u.size(); n >= 2 && ccw(u[n-2], u[n-1], s[i]) == COUNTER_CLOCKWISE; n--){
            u.pop_back();
        }
        u.push_back(s[i]);
    }

    for (int i = (int)s.size() - 3; i >= 0; i--){
        for (size_t n = l.size(); n >= 2 && ccw(l[n-2], l[n-1], s[i]) == COUNTER_CLOCKWISE; n--){
            l.pop_back();
        }
        l.push_back(s[i]);
    }

    reverse(l.begin(), l.end());
    for (size_t i = u.size() - 2; i >= 1; i--) l.push_back(u[i]);

    return l;
}

long long mod_pow(long long x, long long n){
    long long res = 1;
    for(int i = 0;i < 60; i++){
        if(n >> i & 1) res = res * x % MOD;
        x = x * x % MOD;
    }
    return res;
}

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

C++: #include <iostream>


using namespace std;
 
int main()
{

	int a, b, c, d1, d2, d3, i = 0;

	for ( i = 0; i < 1000; i++ ) {
		
		cin >> a >> b >> c;

		d1 = a * a;
		d2 = b * b;
		d3 = c * c;
	

		if ( d1 == ( b * b ) + ( c * c ) ) {
			cout << "YES" << endl;
		} else if ( d2 == ( a * a ) + ( c * c ) ) {
			cout << "YES" << endl;
		} else if ( d3 == ( a * a ) + ( c * c ) ) {
			cout << "YES" << endl;
		} else {
			cout << "NO" << endl;
		}
	}
	return 0;
}

C++: #include <iostream>

using namespace std;
int main(){
  int n;
  while( cin >> n){
    int a,b,c;
    cin >> a >> b >> c;
    if(a == b && b == c)cout << "YES";
    else cout << "NO";
    cout << endl;
  }
  return 0;
}

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

void swap(int &i, int &j) {
    if (j < i) {
        int tmp = i;
        i = j;
        j = tmp;
    }
}

int main() {

    int n;
    cin >> n;
    for (int i = 0; i < n; ++i) {
        int a, b, c;
        cin >> a >> b >> c;
        swap(a, b);
        swap(a, c);
        swap(b, c);
        if (pow(c, 2) == (pow(a, 2) + pow(b, 2))) {
            cout << "YES" << endl;
        } else {
            cout << "NO" << endl;
        }
    }

    return 0;
}

C++: #include<stdio.h>
#include<stdlib.h>
#include<iostream>
#include<string>
#include<vector>
#include<math.h>
#include<queue>
#include <algorithm>
#include<functional>
#include<cstdlib>
#include<cmath>

#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define CI cin >>
#define CO cout <<
#define E << endl;

using namespace std;

typedef pair<int, int> P;
typedef pair<long, long> LP;
typedef pair<int, P> PP;
typedef pair<long, LP> LPP;



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

int A = 0, B = 0, K = 0, T = 0, W = 0, N = 0, H = 0;
int n = 0;
double L = 0;
double S = 0;
double ar = 0, br = 0, cr = 0;
int answer = 0;

string C;
string sA, strB;
vector<vector<char>> map;
vector<double> num;
vector<string> str;

int sum = 0;

vector<int> value;
vector<int> weight;

int dp[110][10010];

int data_[210][2] = {-2};

void input() {
	CI N;

	

	return;
}


int main(void) {
	input();
	
	int a = 0;
	int b = 0;
	int c = 0;
	int max = 0;
	int other1 = 0;
	int other2 = 0;

	for (int i = 0; i < N; i++) {
		CI a >> b >> c;
		if (a > max) {
			max = a;
			other1 = b;
			other2 = c;
		}
		if (b > max) {
				max = b;
				other1 = a;
				other2 = c;
		}
		
		if (c > max) {
			max = c;
			other1 = a;
			other2 = b;
		}
			
		

		if (other1 * other1 + other2 * other2 == max * max) {
			CO "YES" E
		}
		else {
			CO "NO" E
		}

		max = 0;


	}


	return 0;
}

C++: #include <iostream>

using namespace std;

void solve(int a, int b, int c) {
	bool f = false;
	int max_num = max(a, max(b, c);
	int sum = a+b+c-max_num;
	if (max_num < sum) f = true;
	if (f) cout << "YES" << endl;
	else cout << "NO" << endl;
}

int main() {
	int num, a, b, c;
	cin >> num;
	for (int i=0; i<num; i++) {
		cin >> a >> b >> c;
		solve(a,b,c);
	}
	return 0;
}