Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

func main() {
	heights := make([]int, 10)
	for i := 0; i < 10; i++ {
		sc.Scan()
		heights[i], _ = strconv.Atoi(sc.Text())
	}

	sort.Sort(sort.Reverse(sort.IntSlice(heights)))
	for i := 0; i < 3; i++ {
		fmt.Println(heights[i])
	}
}

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C++: #include<stdio.h>
int main()
{
    int ara[12],i,j,t,n=10;
    for(i=0;i<n;i++)
    {
        scanf("%d", &ara[i]);
    }
    for(i=0;i<n;i++)
    {
        for(j=0;j<n;j++)
        {
            if(ara[j]>ara[j+1])
            {
                t=ara[j];
                ara[j]=ara[j+1];
                ara[j+1]=t;
            }
        }
    }
    for(i=9;i>6;i--)
        printf("%d\n", ara[i]);
    return 0;
}

C++: #include <cstdio>
#include <set>
#include <iterator>

int main() {
    std::multiset<int> ms;
    int d;
    for (int i = 0; i < 10; ++i) {
        scanf("%d", &d);
        ms.insert(d);
    }
    for (auto i = ms.rbegin(); i != std::next(ms.rbegin(), 3); ++i) {
        printf("%d\n", *i);
    }
}

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

int main(void)
{
    int a[10];
    for (int i= 0; i < 10; ++i)
        cin >> a[i];

    sort(a, a+10);

    cout << a[9] << endl;
    cout << a[8] << endl;
    cout << a[7] << endl;

    return 0;
}

C++: #include <iostream>

using namespace std;

int main(){
	int h[2];
	int i,j;
	for(i=0;i<=2;i++) h[1] = 0;
	for(i=0;i<=9;i++){
		cin>>j;
		if(j > h[0]) {h[1] = h[0]; h[0] = j;}
		else if (j > h[1]) {h[2] = h[1]; h[1] = j;}
		else if (j > h[2]) h[2] = j;
		else continue;
	}
	for(i=0;i<=2;i++){
		cout<<h[i]<<endl;
	}
	cin>>j;
	return 0;
}

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

using namespace std;


int main(){

  vector<int>h;

  for(int i = 0; i < 10; i++){
    int t;
    cin >> t;
    h.push_back(t);
  }
  sort(h.rbegin(),h.rend());

  for(int i = 0; i < 3; i++){
    cout << h[i] << endl;
  }
  return 0;
}

C++: #include <iostream>

int main()
{
	int a[10];
	int work = 0;

	for(int i = 0;i < 10;i++)
	{
		std::cin >> a[i];
		if(a[i] > 10000)
		{
			std::cout << "値が大きすぎます" << std::endl;
			i -= 1;
		}
	}
	/*そうだ、バブルソートやろう*/

	for(int j = 0;j < 10;j++)
	{
		for(int k = 9;k > j;k--)
		{
			if(a[k] > a[k-1])
			{
				work = a[k-1];
				a[k-1] = a[k];
				a[k] = work;
			}
		}
	}

	std::cout << a[0] << std::endl;
	std::cout << a[1] << std::endl;
	std::cout << a[2] << std::endl;



	return 0;
}

C++: #include <iostream>
#include <algorithm>
using namespace std;
int main()
{
	int arr[10];
	for (int i = 0;i < 10;i++) cin >> arr[i];
	sort(arr, arr + 10);
	cout << arr[9] << endl << arr[8] << endl << arr[7] << endl;
	return 0;
}

C++: #include <stdio.h>
int main(void)
{
	int n,m[10],l,s;
	for(n=0;n<10;n++)
	{
		scanf("%d",&m[n]);
	}
	for(n=0;n<10;n++)
	{
		for(l=n+1;l<10;l++)
		{
			if(m[n]<m[l])
			{
				s=m[n];
				m[n]=m[l];
				m[l]=s;
			}
		}
	}
	printf("%d %d %d\n",m[0],m[1],m[2]);
	return 0;
}

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

int main(){
  int dt[10];
  for(int i=0;i<10;i++)cin>>dt[i];
  sort(dt,dt+10);
  for(int i=9;i>=7;i--)cout<<dt[i]<<endl;
  return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
	const int len = 10;
	int arr[len];

	for (int i = 0; i < len; i++)
		cin >> arr[i];

	for (int i = 0; i < len; i++)
		for (int j = 0; j < len; j++)
			if (arr[i] < arr[j])
				swap(arr[i], arr[j]);

	cout << endl;

	for (int i = len - 1; len - 4 < i; i--)
		cout << arr[i] << endl;
}

C++: #include<stdio.h>

int main(){
    int i;
    int input;
    int height[10], tmp[10];
    for (int i = 0; i < 10; i++){
        scanf("%d", &input);
        height[i] = input;
    }

    int max1 = 0, max2 = 0, max3 = 0;
    for(i = 0; i <= 10; i++){
        if (height[i] > max1)
            max1 = height[i];
    }

    for(i = 0; i <= 10; i++){
        if (max1> height[i] > max2)
            max2 = height[i];
    }

    for(i = 0; i <= 10; i++){
        if (max2 > height[i] > max3)
            max3 = height[i];
    }

    printf("%d\n", max1);
    printf("%d\n", max2);
    printf("%d\n", max3);

    return 0;
}

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

int main() {
	int m[10];
	int ans[3];
	for(int i=0; i<10; i++) scanf("%d", &m[i]);

	ans[0] = 0; ans[1] = 0; ans[2] = 0;
	for(int j=0; j<10; j++) {
		if(m[ans[0]] < m[j]) {
			ans[0] = j;
		}
	}
	for(int j=0; j<10; j++) {
		if(m[ans[1]] < m[j] && ans[0] != j) {
			ans[1] = j;
		}
	}
	for(int j=0; j<10; j++) {
		if(m[ans[2]] < m[j] && ans[0] != j && ans[1] != j) {
			ans[2] = j;
		}
	}
	printf("%d\n%d\n%d\n", m[ans[0]], m[ans[1]], m[ans[2]]);

	return 0;
}

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

int main(){
  array<int,10> xs;
  for(int i=0;i<10;++i)scanf("%d",&xs[i]);
  sort(xs.begin(),xs.end(),greater<int>());
  for(int i=0;i<3;++i)printf("%d",xs[i]);
  return 0;
}

C++: 
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <cmath>
#include <stack>
#include <cctype>
#include <complex>
#include <vector>
#include <algorithm>

using namespace std;


bool solve(){

	vector<int> h(10,0);
	for(int i=0;i<10;i++){
		cin>> h[i];
	}
	sort(h.begin(),h.end());
	
	cout<< h[9]<< "\n"<< h[8]<< "\n"<< h[7]<< endl;
	
	return true;
}

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

	return 0;
}