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<stdio.h>
#include<string.h>
#define N 3

int main()
{
    int i, j, a, b, c;
    int A[N][10];

    scanf("%d",&a);
    if(a<=1000){
        for(i=0;i<a;i++){
            for(j=0;j<N;j++){
                scanf("%d", &b);
                if(1>b || b>1000){   
                    return 1;
                }else{
                    if(j!=0 && b<A[i][j-1]){
                        c = A[i][j-1];
                        A[i][j-1] = b;
                        A[i][j] = c;
                    }else{
                        A[i][j] = b;
                    }
                }
            }

        }
        for(i=0;i<a;i++){
            if(A[i][0]*A[i][0]+A[i][1]*A[i][1]==A[i][2]*A[i][2]){
                printf("YES\n");
            }else{
                printf("NO\n");
            }
        }
    }
    return 0;
}

C++: #include <iostream>
#include <string>
#include <algorithm>
#include <cstdio>
#include <vector>
#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
using namespace std;

int main(){
    int n, x[3], i;
    cin >> n;
    REP(i, n){
        int y[3];
        cin >> x[0] >> x[1] >> x[2];
        sort(x, x+3);
        REP(j, 3)
            y[j] = x[j] * x[j];
        if(y[2] == y[0]+y[1])
            printf("YES\n");
        else
            printf("NO\n");
    }
}

C++: #include<iostream>
#include<algorithm>
#include<math.h>
using namespace std;
#define MAX_N 1000
int A[3];//三辺の長さの情報
bool Tri[MAX_N];//その三角形が直角三角形かどうか
int N;//データの個数

int main(){
  scanf("%d",&N);
  for(int j = 0;j < N;j++){
    for(int i = 0;i < 3;i++){
      cin >>A[i];
    }
    sort(A,A+3);
     Tri[j] = false;
     if(pow(A[2],2) ==pow(A[1],2) + pow(A[0],2)) {
      Tri[j] =true;
    }
    if(Tri[j])
      cout <<"YES"<<endl;
    else
      cout <<"NO"<<endl;
  }
  return 0;
}

C++: #include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef complex<double> P;
typedef pair<int,int> pii;
#define REP(i,n) for(ll i=0;i<n;++i)
#define REPR(i,n) for(ll i=1;i<n;++i)
#define FOR(i,a,b) for(ll i=a;i<b;++i)

#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()

#define MOD (ll)(1e9+7)
#define ADD(a,b) a=((a)+(b))%MOD
#define FIX(a) ((a)%MOD+MOD)%MOD

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

C++: #include<stdio.h>
int main(){
	int N,x,y,z,i;
	scanf("%d",&N);
	for(i=0;i<N;i++){
		scanf("%d %d %d",&x,&y,&z);
			if(x^2+y^2==z^2||x^2+z^2==y^2||y^2+z^2==x^2){
				printf("Yes\n");
			}
			else {
				printf("No\n");
			}
		}
	return 0;
}

C++: #include <vector>
#include <list>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <algorithm>
#include <utility>
#include <functional>
#include <sstream>
#include <iostream>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <climits>
#include <cassert>
using namespace std;
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<string> vs;
typedef pair<int, int> pii;
typedef long long ll;
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(),(a).rend()
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define EACH(t,i,c) for(t::iterator i=(c).begin(); i!=(c).end(); ++i)
const double EPS = 1e-10;
const double PI  = acos(-1.0);

int main(){
	int n;
	cin>>n;
	REP(i,n){
		vi l(3);
		REP(i,3){
			cin>>l[i];
		}
		sort(ALL(l));
		cout<<(l[2]*l[2]==l[0]*l[0]+l[1]*l[1]?"YES":"NO")<<endl;
	}
}

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

long int l[1000][3];

void swap(int a, int b, int c){
	int buf = l[c][a];
	l[c][a] = l[c][b];
	l[c][b] = buf;
}

//bubble
void sort(int c){
	for(int i = 0; i < 2; i++){
		for(int j = i; j < 2; j++){
			if(l[c][j] > l[c][j+1]) swap(j,j+1,c);	
		}
	}
}

int main(){
int buf;

cin >> buf;

for(int i = 0; i < buf; i++){	
	cin >> l[i][0] >> l[i][1] >> l[i][2];
	sort(i);
}

for(int j = 0; j < buf; j++){
	if(l[j][2]*l[j][2] == l[j][0]*l[j][0] +l[j][1]*l[j][1]){
		cout << "YES" << endl;
	}else{
		cout << "NO" << endl;
	}
}

return 0;
}

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

using namespace std;


int main(){
    int a,b,c;
    int N;
    
    cin >> N;
    for(int i=0;i<N;i++){
        cin>>a>>b>>c;
        if(c==sqrt((pow((double)a,(double)2)+pow((double)b,(double)2)))) cout << "YES" << endl;
        else cout << "NO" << endl;
    }
    
    return 0;
}

C++: #include<iostream>
#include<queue>
#include<string>
#include<stack>
#include<cstdio>
#include<algorithm>

using namespace std;

int main(void)
{
  int a[3];
  int i;
  int n;

  cin>>n;

  for(i=0;i<n;i++)
    {
      cin>>a[0]>>a[1]>>c[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;
    }

}

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

C++: #include <iostream>
bool isRight(int a, int b, int c)
{
    //?????§???c??????????????????????????´???
    if (a > c) {
        std::swap(a, c);
    }
    if (b > c){
        std::swap(b, c);
    }
    
    return a * a + b * b == c * c;
}

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

C++: #include<iostream>

using namespace std;

int aa(int x, int y, int z) {

	return (((x ^ 2) + (y ^ 2) == (z ^ 2)) || ((x ^ 2) + (z ^ 2) == (y ^ 2)) || ((y ^ 2) + (z ^ 2) == (x ^ 2)));
}

int main() {

	int a, b[1000], c[1000], d[1000];
	bool e[1000];

	cin >> a;

	for (int i = 1; i <= a; i++)
	{
		cin >> b[i] >> c[i] >> d[i];

		e[i] = aa(b[i], c[i], d[i]);

	}

	for (int i = 1; i <= a; i++)
	{

		cout << ((e[i] != 0) ? "YES" : "NO") << endl;
	}

	return 0;
}

C++: #include<stdio.h>

void handan(int a, int b, int c)
{
	if (a*a == b*b + c*c)
		printf("YES\n");
	else
		printf("NO\n");
}
int main()
{
	int n;
	int a, b, c;

	scanf("%d", &n);
	for (int i = 0; i < n; i++)
	{
		scanf("%d %d %d", &a, &b, &c);
		if (a > b&&b > c)
			handan(a, b, c);
		else if (b > a&&a > c)
			handan(b, c, a);
		else
			handan(c,a,b);
	}
	return 0;
}