Go: package main

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

var rdr = bufio.NewReaderSize(os.Stdin, 1000000)

func readLine() string {
	buf := make([]byte, 0, 1000000)
	for {
		l, p, e := rdr.ReadLine()
		if e != nil {
			panic(e)
		}
		buf = append(buf, l...)
		if !p {
			break
		}
	}
	return string(buf)
}

func toInt(str string) int {
	n, _ := strconv.Atoi(str)
	return n
}

func main() {
	lst := make([]int, 0)
	for i := 0; i < 10; i++ {
		lst = append(lst, toInt(readLine()))
	}
	sort.Ints(lst)
	for i := 9; i > 6; i-- {
		fmt.Println(lst[i])
	}
}

C++: #include <stdio.h>

int main(){

	int a[10] = {}, i, g, n;
	for (i = 0; i < 10; i++){ scanf("%d", &a[i]); }
	for (n = 0; n < 9; n++){
		for (i = 0; i < 9; i++){
			if (a[i] > a[i + 1]){
				g = a[i];
				a[i] = a[i + 1];
				a[i + 1] = g;
			}
		}
	}
	for (i = 0; i < 3; i++){ printf("%d ", a[i]); }
	printf("\n");
	return 0;
}

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

using namespace std;

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

    sort(m, m+10, greater<int>());

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

C++: #include<stdio.h>

int main(){
	
	int a[3]={-1,-1,-1},i,b;
	
	for(i=0;i<10;i++){
		
		scanf("%d",&b);
		
		if(b>=a[0]){
			
			a[1]=a[0];
			a[0]=b;
		}
		else if(b>=a[1]){
			
			a[2]=a[1];
			a[1]=b;
		}
		else if(b>=a[2]){
			
			a[2]=b;
		}
	}
	printf("%d\n%d\n%d\n",a[0],a[1],a[2]);
	
	return 0;
}

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

int main(){
  using namespace std;
  set<int, greater<int> > mts;
  for(int i = 0; i < 10; i++){
    int tmp = 0;
    scanf("%d", &tmp);
    mts.insert(tmp);
  }
  int count = 0;
  for(int const mt : mts){
    printf("%d\n", mt);
    if(++count >= 3) break;
  }
  return 0;
}

C++: #include<iostream>

int main(){
	int a[10],i,n,p;

	for(i=0;i<10;i++){
		std::cin >> a[i];
	}for(i=0;i<9;i++){
		for(p=i+1;p<10;p++){
			if(a[i]<a[p]){
				n=a[i];
				a[i]=a[p];
				a[p]=n;
				}
			}
		}
	for(i=0;i<3;i++){
		std::cout<<a[i]<<std::endl;
		}
	return 0;
	}

C++: #include <stdio.h>
int main(void){
  int i,j,data[10],tmp;
  for(i=0;i<10;i++){
    scanf("%d",&data[i]);
  }
  for(i=0;i<10;i++){
    for(j=9;j>i;j--){
      if(data[j]>data[j-1]){
    tmp=data[j];
    data[j]=data[j-1];
    data[j-1]=tmp;
      }
    }
  }
  for(i=0;i<3;i++){
    printf("%d\n",data[i]);
  }
  return(0);
}

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

int main()
{

    int a[10];

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

    for(int i=0; i<10; i++)
        for(int j=i; j<10; j++)
        {
            if(a[i]<a[j])
            {
                int temp = a[i];
                a[i] = a[j];
                a[j] = temp;
            }

        }

    for(int i=0; i<3; i++)
        cout << a[i] << " ";

    return 0;
}

C++: #include <cstdio>
#include <queue>
#include <vector>

using namespace std;


int main(){
	priority_queue<int> q;
	int self;
	for(int i=0;i<10;i++){
		scanf("%d",&self);
		q.push(self);
	}
	printf("%d\n",q.top());
	q.pop();
	printf("%d\n",q.top());
	q.pop();
	printf("%d\n",q.top());
	q.pop();
	return 0;
}

C++: #include<iostream>
using namespace std;
main()
{ int  s=0;
  int x[10]={0,0,0,0,0,0,0,0,0,0,0};
  int t[3]={0,0,0};
  for(int i=0;i<0;i++){
    cin>>x[i];
  }

  for(int k=0;k<3;k++){
    for(int j=0;j<10;j++){
      if(t[k]<x[j]){
        s=t[k];
        t[k]=x[j];
        x[j]=s;
       }
     }
  }
  for(int e=0;e<3;e++){
    cout<<t[e]<<endl;
  }
return 0;
}

C++: #include<iostream>
using namespace std;
int main()
{
   int d[10],i,j,tmp;
   for(i=0;i<10;i++)
        cin >> d[10]; 
   for(i=0;i<9;i++)
     {
        for(l=i+1;j<10;j++)
          { 
             if(d[i]<d[j])
                {
                   tmp=d[i];
                   d[i]=d[j];
                   d[j]=tmp;
                }
           }
     }
    for(i=0;i<3;i++)
       cout << d[i] <<endl;
    return 0;
}

C++: #include <iostream>
#include <set>

using namespace std;

int main(void){
	set<int, greater<int> > nums;
	for (int i=0; i<10; ++i){
		int num;
		cin >> num;
		nums.insert(num);
	}
	set<int, greater<int> >::iterator it = nums.begin();
	while (it != nums.end()){
		cout << *it << endl;
		++it;
	}

	return 0;
}

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

int main(int,char**){
	std::vector<int> vec(10);
	for(int i(0);i<10;++i) std::cin >> vec[i];
	std::sort(vec.begin(),vec.end());
	std::cout << vec[9] << std::endl<< vec[8] << std::endl<< vec[7] << std::endl;
	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
int max[3]={0},a,i;
for(i=0;i<10;i++){
cin>>a;
if(a>max[0]){max[2]=max[1];max[1]=max[0];max[0]=a;}
else if(a>max[1]){max[2]=max[1];max[1]=a;}
else if(a>max[2]){max[2]=a;}}
for(i=0;i<3;i++)cout<<max[i]<<endl;
return 0;}

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

int main()
{
	int h1 = 0, h2 = 0, h3 = 0,n1,n2;
	int hdata[10];
	for (int n = 0; n < 10; n++) {
		cin >> hdata[n];
		if (hdata[n] > h1) {
			h1 = hdata[n];
			n1 = n;
		}
	}
	for (int n = 0; n < 10; n++) {
		if (hdata[n] > h2 && n != n1) {
			h2 = hdata[n];
			n2 = n;
		}
	}
	for (int n = 0; n < 10; n++) {
		if (hdata[n] > h3 && n != n1 && n != n2)
			h3 = hdata[n];
	}

	cout << h1 << endl << h2 << endl << h3 << endl;
}

C++: #include<iostream>
using namespace std;
int main()
{
	int a,mountain[10],j,k;
	for(int i=0;i<10;i++){
		cin>>mountain[i];
	}
	for(j=0;j<10;j++){
		for(k=0;k<10-j;k++){
			if(mountain[k]<mountain[k+1]){
				a=mountain[k];
				mountain[k]=mountain[k+1];
				mountain[k+1]=a;
			}
		}
	}
	cout<<mountain[0]<<"\n"<<mountain[1]<<"\n"<<mountain[2];
	return 0;
}

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

using namespace std;

int data;
int mountain[10];
int i=0;

int main(){
	while(i < 10){
		scanf("%d",&data);
		mountain[i] = data;
		i++;
	}

	sort(mountain, mountain + 10);

	for(int j=0;j<3;j++){
		printf("%d\n",mountain[j]);
	}

    return 0;
}

C++: #include <iostream>
#include <algorithm>
using namespace std;
    
int main(){
	int data,m[10];

	
	for (int j=0;j<=9;j++){
			while(cin >> data){
			if (data<=10000 && data >= 0) {
			m[j]=data;
			break;
		}
			}
	}

for (int j=0;j<=9;j++){
for (int i=0;i<=9;i++){

	if (m[i] <= m[i+1])
		std::swap(m[i],m[i+1]);

}
}
 
for (int i=0;i<=9;i++){
cout <<  m[i] <<'\n';
}

    return 0;
}

C++: #define _USE_MATH_DEFINES

#include <iostream>
#include <string>
#include <iomanip>
#include <cmath>
#include <algorithm>
#include <utility>
#include <vector>
#include <numeric>

using namespace std;

int main()
{
	vector<int> h(10);

	for (int i = 0; i < h.size(); i++)
	{
		cin >> h.at(i);
	}

	sort(h.begin(), h.end());
	reverse(h.begin(), h.end());

	for (int i = 0; i < 3; i++)
	{
		cout << h.at(i) << endl;
	}

}

C++: #include<stdio.h>

int main(){
	int i,h[10];
	for(i=0;i<10;i++){
		scanf("%d",&h[i]);
	}
	int temp=0,j;
	for(j=0;j<10;j++){
		for(i=0;i<9;i++){
			if(h[i]<h[i+1]){
				temp=h[i];
				h[i]=h[i+1];
				h[i+1]=temp;
			}
		}
	}
	for(j=0;j<3;j++){
		printf("%d\n",h[j]);
	}
	return 0;
}

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

int main(void){

	int n=10, h1, h2, h3, h0;
	for (int i=1; i<n; i++){
		cin>>h0;
		if (h0>h1) swap(h0, h1);
		if (h0>h2) swap(h0, h2);
		if (h0>h3) swap(h0, h3);
	}
	cout<<h1<<endl;
	cout<<h2<<endl;
	cout<<h3<<endl;

	return 0;
}

C++: #include <iostream>
#include <queue>
#include <vector>
using namespace std;
 
int main()
{
    priority_queue< int,vector<int>,less<int> > que;
    int in;
 
    for(int i = 0; i < 10; i++){
        cin >> in;
        que.push(in);
    }
 
 
    for(int j = 0; j < 3; j++){
        cout << que.top() << '\n';
        que.pop();
    }
 
    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;

int main()
{
    long long a[10];

    for(int i=0; i<10; i++)     scanf("%lld", &a[i]);

    sort(a, a+10);

    printf("%lld\n%lld\n%lld\n", a[9],a[8], a[7]);

    return 0;
}