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>

int main(){
	int N = 0 ,i,j,k,cheak = 0,tmp = 0;
	int tri[2];
	scanf("%d",&N);
	for(i=0;i<N;i++){
		scanf("%d %d %d",&tri[0],&tri[1],&tri[2]);
		for(j = 0;j <= 2;j++){
			for(k = j + 1;k <= 2;k++){
				tmp = tri[j];
				tri[j] = tri[k];
				tri[k] = tmp;
			}
		}
		if(tri[0] * tri[0] == tri[1] * tri[1] + tri[2] * tri[2]){printf("YES\n");}
		else{printf("NO\n");}
	}
	return 0;
}

C++: #include <iostream>
using namespace std;
int main ()
{
    int N;
    cin>>N;
    int a,b,c,t,m,x;
    for(int i=1; i<=N; i++){

        cin>>a>>b>>c;
         t=a*a+b*b+c*c;
         m=max(a*a,max(b*b,c*c));
         x=t-m;
        if(m==x){
                cout<<"YES";
        }
        else {
            cout<<"NO";
        }
        
            cout<<endl;
    }
    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
  int n,j=0;
  int a[3];
  cin>>n;
    for(int i=0;i<n;i++){
      cin>>a[0]>>a[1]>>a[2];
    sort(a,a+3);
    if(a[2]*a[2]==(a[1]*a[1])+(a[0]*a[0])){
    cout<<"Yes"<<endl;
  }
  else{
    cout<<"No"<<endl;
  }
    }
  return 0;
}

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

bool IsRightTriangle(const int a, const int b, const int c)
{
	if(a <= b){
		if(b <= c){
			if(c*c == a*a + b*b){
				return true;
			}else{
				return false;
			}
		}else{
			if(b*b == c*c + a*a){
				return true;
			}else{
				return false;
			}
		}
	}else{
		if(a <= c){
			if(c*c == a*a + b*b){
				return true;
			}else{
				return false;
			}
		}else{
			if(a*a == b*b + c*c){
				return true;
			}else{
				return false;
			}
		}
	}
}

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

C++: #include <cstdio>

using namespace std;

int main(){
	int N;
	scanf("%d",&N);
	for(int i=0;i<N;i++){
		int a,b,c;
		scanf("%d %d %d",&a,&b,&c);
		if(a*a+b*b==c*c||a*a+c*c==b*b||b*b+c*c==a*a){
			puts("YES");
		}
		else puts("NO");
	}
	return 0;
}

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

#define Triangle(s1,s2,s3) if(s1*s1+s2*s2==s3*s3)
using namespace std;

int main()
{
	int n;
	int h[3];
	vector<int> side;
	int i;
	
	cin >> n;
	
	for(i=0;i<n;i++)
	{
		side.clear();
		
//		vector<int>::iterator it=side.begin();
		
		for(int j=0;j<3;j++)
		{
			cin >> h[j];
			side.push_back(h[j]);
//			cout << "side: " << side[j] << endl;
		}
		
		sort(side.begin(),side.end());
		
//		it=side.begin();
		
//		cout << endl;
		
//		for(;it!=side.end();it++)
//			cout << *it << " " ;
		
//		cout << endl;
		
//		cout << "side1:" << side[0]*side[0] << " side2:" << side[1]*side[1] << " side3:" << side[2]*side[2] << endl;
		
		Triangle(side[0],side[1],side[2])
			cout << "YES" << endl;
		else
			cout << "NO" << endl;
	}
}

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

int max(int *a);

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

C++: #include<iostream>


using namespace std;

int main(void)
{
int n,a = 0,b = 0,c = 0;
cin>>n;

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

        if(c*c == (b*b+a*a)|| (a * a + c * c )== b * b ||( b * b + c * c) == a * a){
        cout<<"YES"<<endl;
        }
        else{
            cout<<"NO"<<endl;
        }

}

return 0;
}

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

int main()
{
	int n;
	
	std::cin >> n;
	std::vector<std::string>answer;
	for(int i = 0;i < n;i++)
	{
		std::vector<int>length(3);
		for(int i = 0;i < 3;i++)
		{
			std::cin >> length[i]; 
		}
		std::sort(length.begin(),length.end());
		if((length[0]*length[0]) + (length[1]*length[1]) == (length[2]*length[2]))
		{
			answer.push_back("YES");
		}
		else
		{
			answer.push_back("NO");	
		}
	}

	for(int i = 0;i < n;i++)
	{
		std::cout << answer[i] << std::endl;
	}

	return 0;
}

C++: #include <iostream>
#include <vector>
#include <set>
#include <map>
#include <list>
#include <iterator>
#include <queue>
#include <stack>
#include <deque>
#include <sstream>
#include <algorithm>
#include <numeric>
#include <string>
#include <cmath>
#include <complex>
#include <functional>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cassert>
#include <cstdlib>
#include <cctype>
#define REP(i,m,n) for(int i=m;i<n;i++)
#define rep(i,n) for(int i=0;i<n;i++)
#define rp(i,c) rep(i,(int)c.size())
#define fr(i,c) for(__typeof((c).begin()) i=(c).begin();i!=(c).end();i++)
#define mp make_pair
#define pb push_back
#define all(c) (c).begin(),(c).end()
#define rall(u) (u).rbegin(),(u).rend()
#define dbg(x) cerr<<#x<<" = "<<(x)<<endl
#define v_delete(a,b) (a).erase(remove((a).begin(), (a).end(), b), (a).end())
#define v_unique(a) (a).erase(unique((a).begin(), (a).end()), (a).end())
#define VV(T) vector<vector< T > >
#define init(a,b) memset((a), (b), sizeof((a)))
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pi;
const int inf=1<<28;
const double INF=1e10,EPS=1e-9;


template<class T>int SIZE(T a){return a.size();}
template<class T>string IntToString(T num){string res;stringstream ss;ss<<num;return ss.str();}
template<class T>T StringToInt(string str){T res=0;for(int i=0;i<SIZE(str);i++)res=(res*10+str[i]-'0');return res;}
template<class T>T gcd(T a,T b){if(b==0)return a;return gcd(b,a%b);}
template<class T>T lcm(T a,T b){return a/gcd(a,b)*b;}

template <class T> void input(T& a, int n) { for (int i = 0; i < n; ++i) cin >> a[i]; }
template <class T> void input(T* a, int n) { for (int i = 0; i < n; ++i) cin >> a[i]; }
typedef pair<int,int> pii;

inline bool IN(int x, int y, int w, int h)
{
    return 0 <= x && x < w && 0 <= y && y < h;
}


int main()
{
	int n;
	while(cin >> n,n){
		rep(nn,n){
			int l[3];
			rep(i,3){
				cin >> l[i];
			}
			sort(l,l+3);
			if(pow(l[2],2.0)==pow(l[1],2.0)+pow(l[0],2.0)){
				cout << "YES" << endl;
			}else{
				cout << "NO" << endl;
			}

		}
	}

	return 0;
}

C++: #include<stdio.h>
int main(void)
{
	int n,i,w,a,s,d,x,j,z;
		scanf("%\n",&n);
		for(i=0;i<n;i++){
			scanf("%d %d %d",&a,&s,&d);
			if(a>s&&d<a){
				w=(d*d)+(s*s);
				x=a*a;
					if(w==x){
						printf("YES\n");
					}
					else{
						printf("NO\n");
					}	
			}	
			if(a<d&&d>s){
				w=(a*a)+(s*s);
				x=d*d;
					if(w==x){
						printf("YES\n");
					}
					else{
						printf("NO\n");
					}				
			}
			if(a<s&&s>d){
				w=(d*d)+(s*s);
				x=s*s;
					if(w==x){
						printf("YES\n");
					}
					else{
						printf("NO\n");
					}				
			}
			if(a==s&&s==d&&d==a){
				printf("NO\n");
			}	
		
		}
	return 0;
}