Go: package main

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

func main() {
        fp := os.Stdin
        scanner := bufio.NewScanner(fp)
        var lst [3]int

        for scanner.Scan() {
                num, _ := strconv.Atoi(scanner.Text())
                if lst[0] < num {
                        lst[2] = lst[1]
                        lst[1] = lst[0]
                        lst[0] = num
                } else if lst[1] < num {
                        lst[2] = lst[1]
                        lst[1] = num
                } else if lst[2] < num {
                        lst[2] = num
                }
        }

        for _, i := range lst {
                fmt.Printf("%d\n", i)
        }
}

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

int main(){
	int i,j,iDate[10],hight[10];
	for(i=0;i<=9;++i){
		cin >> iDate[i];
		hight[i]=0;
	}
	for(i=0;i<=9;++i){
		for(j=0;j<=3;++j){
			if (iDate[i]>hight[j]){
				hight[j+2]=hight[j+1];
				hight[j+1]=hight[j];
				hight[j]=iDate[i];
				break;
			}
		}
	}
	for(i=0;i<=2;++i){
		cout << hight[i] << endl;
	}
	return 0;
}

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

using namespace std;

int main()
{
	int mt[10];
	for(int i=0;i<10;i++)
	 cin >> mt[i];
	sort(mt,mt+10,greater<int>());
	for(int i=0;i<3;i++)
		cout << mt[i] << endl;
}

C++: //
//  main.cpp
//  sanpie
//
//  Created by h3037178 on 2017/07/28.
//  Copyright ?? 2017??´ ?????£?????????. All rights reserved.
//

#include <iostream>
#include <algorithm>
using namespace std;
int main(){
    int i[10];
    for(int o=1;o<=10;o++){
        cin>>i[o];
    }
    sort(i,i+10);
    cout<<i[9]<<endl<<i[8]<<endl<<i[7]<<endl;
}

C++: #include<iostream>
#include<algorithm>
#include<set>
#include<map>
#include<vector>
#include<queue>
#include<cstring>
#include<cmath>
#include<cstdio>
#include<cstdlib>
using namespace std;
#define REP(i,a,n) for(int i = a ; i < n ; i++)
#define rep(i,n) REP(i,0,n)

typedef long long ll;

int main(){
  vector<int> v(10);
  rep(i,10) cin>>v[i];
  sort(v.rbegin(),v.rend());
  rep(i,3) cout<<v[i]<<endl;
}

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

int main(void){
    int a,b=0,c=0,d=0;
    for(int i=0;i<10;i++){
        cin>>a;
        if(b<a){
            swap(b,a);
        }
        if(c<a){
            swap(c,a);
        }
        if(d<a){
            swap(d,a);
        }
    }
    cout<<b<<endl<<c<<endl<<d<<endl;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main()
{
	int a[10];
	for(int b=0;b<10;b++)
	cin>>a[b];
	for(int i=0;i<90000000;i++)sort(a,a+10);
	for(int c =9;c>=7;c--)
	cout<<a[c]<<endl;
	}

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

int main(){
int a[10];
for(int i=0;i<10;i++)cin >> a[i];
sort(a,a+10);
for(int i=9;i>6;i--)cout << a[i] << endl;
}

C++: #include <stdio.h>

int main(void)
{
	int       i = 0;
	int buf[10] = { 0 };
	int top3[3] = { 0 };
	while(i < 10) {
		scanf("%d",&buf[i]);
		if(10000 < buf[i] ||
		   0     > buf[i]) {
			continue;
		}
		i++;
	}
	
	for(i = 0; i < 10; i++) {
		if(buf[i] > top3[2]) {
			if(buf[i] > top3[1]){
				if(buf[i] > top3[0]){
						top3[2] = top3[1];
						top3[1] = top3[0];
						top3[0] = buf[i];
				}
				else{
					top3[2] = top3[1];
					top3[1] = buf[i];
				}
			}
			else {
				top3[2] = buf[i];
			}
		}
	}
	printf("%d\n%d\n%d\n", top3[0],top3[1],top3[2]);
	return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <cstdlib>
#include <math.h>
#include <vector>
#include <queue>
#include <algorithm>
#include <iterator>
#include <sstream>
#include <string>
using namespace std;
#define rep(I,N) for(int I = 0; I < (int)(N); I++)
#define FIN(V) cout<<V<<endl
#define pb push_back
#define INF (1 << 30)
typedef pair<int, int> P;
typedef long long ll;
typedef priority_queue<int> pq;

int main(void){
	pq que;
	rep(i, 10){
		int a;
		cin >> a;
		que.push(a);
	}
	rep(i, 3){
		int x = que.top();
		que.pop();
		cout << x << endl;
	}
	return 0;	
}

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

int main() {
	multiset<int, greater<int>> ms; int temp;
	for (int i = 0; i < 10; i++) { cin >> temp; ms.insert(temp); }
	auto itr = ms.begin();
	for (int i = 0; i < 3; i++) { cout << *itr << endl; itr++; }
	return 0;
}

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

int main(){
        int i;
        int high[10];
        for(i = 0; i < 10; i++){
                high[i] << cin;
        }
        partial_sort(high, high + 3, greater<int>());
        cout << high[0] << endl
                << hiht[1] << endl
                << high[2] << endl;y
        return 0;
}

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

using namespace std;

int main() {
	int i, m[10];

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

	sort(m, m+10);

	for(i=9; i>6; i--) {
		cout << m[i] << endl;
	}
}

C++: #include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <ctime>
#include <list>
#include <numeric>
#include <utility>
#include <ctime>
#define INF 100000000
#define LINF 9000000000000000000
#define mod 1000000007
 
#define rep(i,n) for(int i=0;i<int(n);i++)
#define REP(i,a,b) for(int i=(a);i<int(b);i++)
#define all(x) (x).begin(),x.end()
#define pb push_back
#define mp make_pair
#define MOD(x) (x%(mod))
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef pair<int,int> pi;
 
int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};
bool debug=false;

/*---------------------------------------------------*/

int main(){
  int high[11];
  rep(i,10)cin>>high[i];
  sort(high,high+10);reverse(high,high+10);
  rep(i,3)cout<<high[i]<<endl;
  return 0;
}

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

const int SIZE = 10;

int Sort(int A[], int N, int name) {
	int j, i, v;

	for (i = 1; i < N; i++) {
		v = A[i];
		j = i - 1;
		while (j >= 0 && A[j] > v) {
			A[j + 1] = A[j];
			j--;
		}
		A[j + 1] = v;
	}
	return A[name];
}

int main(){
	int Height[10];
	int sort[3];

	for (int i = 0; i < SIZE; i++) {
		cin >> Height[i];
		if (Height[i] > 10000) {
			Height[i] = 0;
			i--;
		}
	}

	sort[0] = Sort(Height, SIZE, 9);
	sort[1] = Sort(Height, SIZE, 8);
	sort[2] = Sort(Height, SIZE, 7);
	
	cout <<  sort[0] << endl;
	cout <<  sort[1] << endl;
	cout <<  sort[2] << endl;

	return 0;
}

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

int main() {
	multiset<int, greater<int>> ms; int temp;
	for (int i = 0; i < 10; i++) { cin >> temp; ms.insert(temp); }
	auto itr_e = ms.begin();
	for (int i = 0; i < 3; ++i) ++itr_e;
	for (auto itr_s = ms.begin(); itr_s != itr_e; ++itr_s) {
		cout << *itr_s << endl;
	}
	return 0;
}

C++: #include <iostream>

using namespace std;

int main(){

	int hight[10];
	int num;
	int baffer;
	int flag=1;

	for(num=0;num!=10;num++)
	{
		cin>>hight[num];
	};

	for(num=0;num!=10;num++)
	{
		if(hight[num]<hight[(num+1)]){

		baffer=hight[(num+1)];

		hight[(num+1)] = hight[num];
		
		hight[num] = baffer;
		
		flag++;}
		
		if(num==8){
			if(flag==0){break;}
			else{num=-1;flag=0;};

		};
	};

	cout<<hight[0]<<endl;
	cout<<hight[1]<<endl;
	cout<<hight[2]<<endl;

return 0;
}

C++: #include<stdio.h>
int main(void)
{
    int x[10],i,n,y;
	for(i=0;i<10;i++){
	scanf("%d",&x[i]);
	}
	for(i=0;i<8;i++){
	    for(n=1;n<9;n++){
			if(x[i]<x[n]){
				y=x[i];
				x[i]=x[n];
				x[n]=y;
			}
		}
	}
	for(i=0;i<3;i++){
	printf("%d\n",x[i]);
	}
	return 0;
}