Go: package main

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

func sliceAtof64(sa []string) ([]float64, error) {
	si := make([]float64, 0, len(sa))
	for _, a := range sa {
		i, err := strconv.ParseFloat(a, 64)
		if err != nil {
			return si, err
		}
		si = append(si, i)
	}
	return si, nil
}

func answer(ans bool) {
	if ans {
		fmt.Println("YES")
	} else {
		fmt.Println("NO")
	}
}
func isRightTriangle(ary []float64) (ans bool) {
	sort.Sort(sort.Reverse(sort.Float64Slice(ary)))
	ans = math.Pow(ary[1], 2.0)+math.Pow(ary[2], 2.0) == math.Pow(ary[0], 2.0)

	return
}

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Scan()
	lineCount, _ := strconv.Atoi(scanner.Text())
	lines := make([]string, lineCount)

	for i := 0; i < lineCount; i++ {
		scanner.Scan()
		lines[i] = scanner.Text()
	}

	for _, v := range lines {
		ary, _ := sliceAtof64(strings.Split(v, " "))
		answer(isRightTriangle(ary))
	}
}

C++: #include<iostream>
using namespace std;
int main(){
  int n;
  int a,b,c;
  int cnt[100];
  cin>>n;
  for(int i=0;i<n;i++){
    cin>>a>>b>>c;
    if(a*a==b*b+c*c||b*b==a*a+c*c||c*c==a*a+b*b){
      cnt[i]=1;
    }
  }
  for(int i=0;i<n;i++){
    if(cnt[i]==1){
      cout<<"YES"<<endl;
    }else{
      cout<<"NO"<<endl;
    }
  }
  return(0);
}

C++: #include <iostream>
#include<algorithm>
using namespace std;
int main(){
    int a,b,c,d;
    cin>>d;
    for(int e=0;e<d;e++){
        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 <cstdio>
using namespace std;
int main(){
  int a,b,c,n;
  scanf("%d",&n);
  for(int i=0;i<n;i++){
    if(a*a+b*b==c*c) printf("YES\n");
    else if(a*a+c*c==b*b) printf("YES\n");
    else if(b*b+c*c==a*a) printf("YES\n");
    else printf("NO\n");
  }
  return 0;
}

C++: #include<iostream>
#include<math.h>
#include<algorithm>
using namespace std;
int main(){
    int n,a[1000],b,c,i[3],f[3],j,max,l,k,gou=0,gou2;
    float opi=4;
    cin>>n;
    for(l=0;l<n;l++){
        for(k=0;k<3;k++){
            cin>>i[k];
            f[k]=i[k]^2;
        }
        sort(f,f+3);
        if(f[2]==f[0]+f[1]){
            cout<<"YES"<<endl;
        }
        else{
            cout<<"NO"<<endl;
        }
    }
}

C++: #include <iostream>
#include <algorithm>
using namespace std;
int main() {
	int a[3];
	int n;
	cin>>n;
	while(0<n){
		cin>>a[1]>>a[2]>>a[3];
		sort(a,a+2);
		if(a[1]*a[1]+a[2]*a[2]==a[3]*a[3]){
			cout<<"YES"<<endl;
		}else {
			cout<<"NO"<<endl;
		}
	}
	return 0;
}

C++: #include<stdio.h>


int main(){
	int n,a[3];
	scanf("%d",&n);
	int i,j,k;
	for(k=0;k<n;k++){
		scanf("%d %d %d",&a[0],&a[1],&a[2]);
		for(i=0;i<3;i++){
			a[i]=a[i]*a[i];
		}
		j=0;
		for(i=0;i<3;i++){
			if(a[i%3]-a[(i+1)%3]-a[(i+2)%3]==0){
				j=1;
			}
		}
		if(j==1){
			printf("YES\n");
		}else{
			printf("NO\n");
		}

	}
	return 0;
}

C++: #include <iostream>

int triangle(int x, int y, int z);

int main()
{
	int N, x, y, z;
	
	std::cin >> N;
	std::cout << std::endl;
	
	for(int i = 0; i < N; i++){
		std::cin >> x >> y >> z;
		if ( triangle(x, y, z) == 0 ){
			std::cout << "YES" << std::endl;
		} else {
			std::cout << "NO" << std::endl;
		}
	}
	
	return 0;
}

int triangle(int x, int y, int z)
{
	int a = x * x;
	int b = y * y;
	int c = z * z;
	return (a + b - c) * (b + c - a) * (c + a - b);
}

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

C++: #include <stdio.h>
#include <math.h>
#include <ctype.h>
void bsort(int a[])
{
  int i,j,k,l;
  for(j=0;j<2;j++) {
	for(k=2;k>j;k--) {
	  if(a[k] > a[k-1]) {
		int tmp = a[k-1];
		a[k-1] = a[k];
		a[k] = tmp;
	  }
	}
  }
}

int main(void)
{
  int i,j,k,l;
  int n,m;
  int a[3];
  int yes[200] = {0};
  scanf("%d",&n);
  for(i=0;i<n;i++) {
	scanf("%d %d %d",&a[0],&a[1],&a[2]);
	bsort(a);
	if(a[1] + a[2] > a[0]) {
	  if(a[0]*a[0] == a[1]*a[1] + a[2]*a[2]) yes[i] = 1;
	}
  }
  for(i=0;i<n;i++) {
	if(yes[i]) printf("YES\n");
	else  printf("NO\n");
  }
  return 0;
}

C++: // ------------------------------------
// Date:2018/ 2/12
// Problem:0003 : IsItRightTriangle 3.cpp
//
// ------------------------------------

#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <random>

using namespace std;

#define FOR(i,a,b) for(int i=(int)a;i<(int)b;++i)
#define REP(i,n) FOR(i,0,n)

int main()
{
  int N;
  vector<int> d(3,0);
  cin >> N;
  while(N--) {
    scanf("%d %d %d",&d[0], &d[1], &d[2]); 
    sort(d.begin(),d.end(), std::greater<int>());
    if (d.at(0)*d.at(0)==d.at(1)*d.at(1)+d.at(2)*d.at(2)) {
      cout << "YES" << endl;
    } else {
      cout << "NO" << endl;
    }
  }
  return 0;
}

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

int main(void)
{
    int n, a, b, c;
    cin >> n;
    for (int i = 0; i < n; ++i) {
        cin >> a >> b >> c;
        int min, mid, max;
        min = (a <= b && a <= c)? a : (b <= a && b <= c)? b : c;
        max = (a >= b && a >= c)? a : (b >= a && b >= c)? b : c;
        mid = (a!=min && a!=max)? a : (b!=min &&b!=max)? b : c;
        cout << ((pow(min, 2.0) + pow(mid, 2.0) == pow(max, 2.0))? "YES" : "NO") << endl;
    }
    return 0;
}

C++: #include <iostream>

int main(int argc, char **argv) {
	int num, i, a, b, c;
	
	std::cin >> num;
	
	for(i = 0; i < num; i++) {
		std::cin >> a >> b >> c;
		if (a*a + b*b == c*c &&
		    b*b + c*c == a*a &&
			c*c + a*a == b*b) {
			std::cout << "YES" << std::endl;
		} else {
			std::cout << "NO" << std::endl;
		}
	}
}

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

int main() {
    int N;
    cin >> N;
    int a, b, c;
    while (N--) {
        cin >> a >> b >> c;
        int l=max(a,max(b,c));
        int x, y;
        if (a==l) {
            x=b;
            y=c;
        } else if (b==l) {
            x=a;
            y=c;
        } else if (c==l) {
            x=a;
            y=b;
        }
        if (l==sqrt(pow(x,2)+pow(y,2))) {
            printf("Yes\n");
        } else {
            printf("No\n");
        }
    }
    return 0;
}

C++: #include <iostream>
using namespace std;
int main(){

	int n;
	int sd[3];
	int max,m=-1;
	bool isRect=false;
	bool isTri=true;

	cin>>n;

	for(int i=0;i<n;++i){
		cin>>sd[0]>>sd[1]>>sd[2];
		//長辺の判定
		max=0;
		for(int i=0;i<3;++i){
			if(sd[i]==0){isTri=false;}
			if(sd[i]>max){m=i;max=sd[i]}
		}

		//直角三角形の判定
		if(isTri){
			switch(m){
			case 0:
				if(sd[0]*sd[0] == (sd[1]*sd[1] + sd[2]*sd[2])){isRect=true;}else{isRect=false;}
				break;
			case 1:
				if(sd[1]*sd[1] == (sd[0]*sd[0] + sd[2]*sd[2])){isRect=true;}else{isRect=false;}
				break;
			case 2:
				if(sd[2]*sd[2] == (sd[1]*sd[1] + sd[0]*sd[0])){isRect=true;}else{isRect=false;}
				break;
			}
		}

		if(isRect){cout<<"YES\n";}else{cout<<"NO\n";}

	}
}

C++: #include <iostream>

using namespace std;

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