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 <cstdio>
#include <cstring>

int main()
{
	int top[3];
	memset(top, 0, sizeof(top));
	int h;
	while (scanf("%d", &h) != EOF)
	{
		for (int i = 0; i < 3; ++i)
		{
			if (top[i] < h)
			{
				for (int j = 2; j > i; --j)
					top[j] = top[j-1];
				top[i] = h;
				break;
			}
		}
	}
	for (int i = 0; i < 3; ++i)
		printf("%d\n", top[i]);

	return 0;
}

C++: #include <bits/stdc++.h>

using namespace std;

#define LOG(...) fprintf(stderr, __VA_ARGS__)
//#define LOG(...)
#define FOR(i, a, b) for(int i=(int)(a); i<(int)(b); ++i)
#define REP(i, n) for(int i=0; i<(int)(n); ++i)
#define ALL(a) (a).begin(), (a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define EXIST(s, e) ((s).find(e)!=(s).end())
#define SORT(c) sort(ALL(c))
#define RSORT(c) sort(RALL(c))
#define SQ(n) (n) * (n)

typedef long long ll;
typedef unsigned long long ull;
typedef vector<bool> vb;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<vb> vvb;
typedef vector<vi> vvi;
typedef vector<vll> vvll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

int main() {
  vi mt(10);
  REP(i, 10) cin >> mt[i];
  RSORT(mt);
  REP(i, 3) cout << mt[i] << endl;
}

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

int main(){
	std::vector<int> height;
	for (int i = 0; i < 10; i++)
	{
		int scan_num;
		std::cin >> scan_num;
		height.push_back(scan_num);
	}
	std::sort(height.begin(), height.end());
	for (int i = 10; i > 10 - 3; i--)
	{
		std::cout << height[i-1] << '\n';
	}
	return 0;

}

C++: #include <iostream>
using namespace std;
int main(){
	int h[10],one=0,two=0,three=0;
	for(int i=0;i<10;i++){
		cin>>h[i];
		if(three<h[i]){
			if(two<h[i]){
				if(one<h[i]){
					two=one;
					one=h[i];
				}else{
					three=two;
					two=h[i];
				}
			}else{
				three=h[i];
			}
		}
	}
	cout<<one<<endl<<two<<endl<<three<<endl;
	return 0;
}

C++: #include <cstdio> #include <algorithm> using namespace std; int main(void){ int a[10]; int i; for(i=0;i<10;i++){ scanf("%d",&(a[i])); } sort(a,a+10); for(i=9;i>6;i--){ printf("%d\n",a[i]); } return 0; }

C++: #include<stdio.h>

int main()
{
    int i,j,temp,height[15];

    for(i=0;i<10;i++)
    {
        scanf("%d",&height[i]);
    }
    for(i=0;i<10;i++)
    {
        for(j=i+1;j<10;j++)
        {
            if(height[i]>height[j])
            {
                temp=height[j];
                height[j]=height[i];
                height[i]=temp;
            }
        }
    }
    for(i=9;i>6;i--)
    {
        printf("%d\n",height[i]);
    }
    return 0;
}

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

int main(){
  int h,first,second,third;
  first = second = third = -1;
  for(int i=0;i<10;i++){
     cin >> h;
     if(third < h)third = h;
     if(second < third){
       int tmp = second; second = third; third = tmp;
     }
     if(first < second){
       int tmp = first; first = second; second = tmp;
     } 
  }
  cout << first << endl << second << endl << third << endl;
}

C++: #include <iostream>
using namespace std;
int main(void){
    // Your code here!
    int a,b,c;
    a=0;
    b=0;
    c=0;
    int r[10]={};
    for(int u=1;u<=10;u++){
        cin>>r[u];
        if(a<r[u]){
            c=b;
            b=a;
            a=r[u];
        }else if(b<r[u]){
            c=b;
            b=r[u];
        }else if(c<r[u]){
            c=r[u];
        }
    }
    cout<<a<<endl;
    cout<<b<<endl;
    cout<<c<<endl;
}

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

using namespace std;

int main() {
	int a[10];
	for(int i = 0; i < 10; i++) {
		scanf("%d\n", a+i);
	}
	sort(a,a+10);
	printf("%d\n%d\n%d\n",a[9],a[8],a[7]);
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
typedef long long ll;
// Welcome to my source code!

int main() {
    int m[10];
    for (int i = 0; i < 10; i++) cin >> m[i];
    sort(m, m+10, greater<int>());
    printf("%d\n%d\n%d\n", m[0], m[1], m[2]);
}

C++: #include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int main(void)
{
  vector<int> a(10);
  for(int i=0;i<10;i++){
    cin >> a[i];
  }
  sort(a.begin(),a.end());
  reverse(a.begin(),a.end());
  /*
    ±êÍ
    sort(a.begin(),a.end(),greater<int>());
    ÆµÄàÇ¢
   */
  for(int i=0;i<3;i++){
    cout << a[i] << endl;
  }
}

C++: #include <stdio.h>
??
int main(void)
{
????????int yama[10],i,j;
????????for(i=0;i<10;i++){
????????????????scanf("%d",&yamja[i]);
????????}
????????for(i=0;i<10;i++){
????????????????for(j=0;j<10;j++){
????????????????????????if(yama[i]<yama[j]){
????????????????????????????????a=yama[i];
????????????????????????????????????????????????????????????????yama[i]=yama[j];
????????????????????????????????????????????????????????????????yama[j]=a;
}
}
}
for(i=0;i<3;i++){
printf("%d\n",yama[i]);
}
}

C++: #include <iostream>
#include <cstdio>
using namespace std;
 
int main() {
	int arr[10];
	for(int i=0; i<10; i++){
		scanf("%d", &arr[i]);
	}
	int max1=arr[0];
	for(int i=0; i<10; i++){
		if(max1<arr[i]){
			max1 = arr[i];
		}
	}
	int max2 = arr[0];
	for(int i=0; i<10; i++){
		if(max2<arr[i] && arr[i]!=max1){
			max2 = arr[i];
		}
	}
	int max3 = arr[0];
	for(int i=0; i<10; i++){
		if(max3<arr[i] && arr[i]!=max1 && arr[i]!=max2){
			max3 = arr[i];
		}
	}
	printf("%d\n%d\n%d\n", max1,max2,max3);
	return 0;
}

C++: #include<iostream>
 using namespace std;
int main(){
int input[10];
int first;
int second;
int third;
for(int i=0;i<30;i++){
cin>>input[i];
if(first<input[i]){first = input[i];}
else if(second<input[i-10]){second = input[i-10];}
else if(third<input[i-20]){third = input[i-20];}
}
cout<<first<<endl;
cout<<second<<endl;
cout<<third<<endl;
return 0;

}

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

C++: #include<iostream>
#include<string>
#include<algorithm>
#include<functional>
#include<vector>
#include<math.h>
#define L(_i,_N) for(int _i=0;_i<_N;_i++)
typedef long long int lli;
using namespace std;

int main() {
	vector<int> Mountain(10);
	L(i, 10) cin >> Mountain[i];
	sort(Mountain.begin(),Mountain.end(),greater<int>());
	L(i, 3) cout << Mountain[i] << endl;
	return 0;
}

C++: #include<cstdio>
#include<algorithm>
#include<iostream>
#include<cstring>
#include<string>
#include<algorithm>
using namespace std;
int c[11];
int main(){
  for(int i=0;i<10;i++){
    cin>>c[i];
  }
  sort(c,c+10,greater<int>());
  cout<<c[0]<<"\n"<<c[1]<<"\n"<<c[2]<<"\n";
}

C++: #include <iostream>

int main(int argc, char const* argv[])
{
	int top1 = 0, top2 = 0, top3 = 0;
	int input;

	for (size_t i = 0; i < 10; i++)
	{
		std::cin >> input;
		if(input > top1)
		{
			top3 = top2;
			top2 = top1;
			top1 = input;
		}
		else if (input > top2)
		{
			top3 = top2;
			top2 = input;
		}
		else if(input > top3)
			top3 = input;
	}

	std::cout << top1 << std::endl;
	std::cout << top2 << std::endl;
	std::cout << top3 << std::endl;
	return 0;
}