Go: package main

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

var scanner = bufio.NewScanner(os.Stdin)

func nextInt() int {
	scanner.Scan()
	i, e := strconv.Atoi(scanner.Text())
	if e != nil {
		panic(e)
	}
	return i
}
func main() {
	heighs := make([]int, 10)
	for i := range heighs {
		heighs[i] = nextInt()
	}
	sort.Sort(sort.Reverse(sort.IntSlice(heighs)))
	for i := 0; i < 3; i++ {
		fmt.Println(heighs[i])
	}
}

C++: #include<stdio.h>
         
int main(void){
    /* 宣言と初期化 */
    int hai[10];
    int id[2];
    int i;
    int temp2nd;
    int temp3rd;
    int tempmax;
         
for(i=0;i<10;i++)
{
scanf("%d",&hai[i]);
}
    /* 代入 */
    temp2nd=hai[0];
    tempmax=hai[0];
    temp3rd=hai[0]; 
    /* 計算 */
    for(i=0;i<10;i++){
        /* 最大値求める */
        if(hai[i]>tempmax)
       {tempmax=hai[i];id[0]=i;}
    }
    for(i=0;i<10;i++){
        /*2番目求める */
        if(hai[i]<tempmax&&hai[i]>temp2nd&& i=! id[0])
        {temp2nd=hai[i];id[1]=i;}
    }   
    for(i=0;i<10;i++){
        /* 3番目求める */
        if(hai[i]>temp3rd&&hai[i]<temp2nd && i =! id[1] && i =! id[0])
       {temp3rd=hai[i];}
    }
         
    /* 表示 */
    printf("最も高い山の高さ　%d\n",tempmax);
    printf("２番目に高い山の高さ　%d\n",temp2nd);
    printf("３番目に高い山の高さ　%d\n",temp3rd);
         
    return 0;
}

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

C++: #include<stdio.h>
int main(void){
  int high[10]={},i;
  int max=0;
  int sec=0;
  int thi=0;
 
  for(i=0;i<10;i++){
    scanf("%d",&high[i]);
  }
 
  for(i=0;i<10;i++)
    if(max<high[i])
      max=high[i];
   
  for(i=0;i<10;i++)
    if(high[i]<max && sec<high[i])
      sec=high[i];
 
  for(i=0;i<10;i++)
    if(high[i]<sec && thi<high[i])
      thi=high[i];
 
  printf("%d\n%d\n%d\n",max,sec,thi);
 
  return 0;
}

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

int main(){
  int array[10];
  
  for(int i=0; i<10; i++){
    std::cin >> array[i];
  }
  
  std::vector<int> vector(array, array+10);
  std::sort(vector.begin(), vector.end());
  for(int i=0; i<3; i++){
    std::cout << vector[i] << std::endl;
  }
  
  return 0;
}

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

int main(){
	int h = 0,m = 0,l = 0,tmp,i;

	for(i = 0;i < 9;i++){
		cin>>tmp;
		if(tmp > h){
			l = m;
			m = h;
			h = tmp;
		}else if(tmp > m){
			l = m;
			m = tmp;
		}else if(tmp > l){
			l = tmp;
		}
	}
	cout<<h<<endl;
	cout<<m<<endl;
	cout<<l<<endl;
	}
	return 0;
}

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

bool compare(int a, int b) {
    return a < b;
}

int main(void) 
{
    int i;
    std::vector<int> hs(0, 10);

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

    std::sort(hs.begin(), hs.end(), std::greater<int>());

    for (i = 0; i < 3; i++) {
        std::cout << hs[i] << "\n";
    }

    return 0;
}

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

int main(int argc, const char * argv[]) {
    
    vector<int> heights(10);
    for (int i=0; i<10; i++){
        cin >> heights[i];
    }
    sort(heights.begin(), heights.end(), greater<int>());
    
    for (int i=0; i<3; i++){
        cout << heights[i] << endl;
    }
    
    return 0;
}

C++: #include<stdio.h>
#define N 10

int main()
{
    int i, j, n, a=0;
    int A[N];

    for(i=0;i<10;i++){
        scanf("%d", &n);
        A[i] = n;
    }   
    for(i=0;i<3;i++){
        n = A[i];
        for(j=i+1;j<N;j++){
            if(n<A[j]){
                n = A[j];
                a = j;//max_index
            }   
        }   
        n = A[i];
        A[i] = A[a];
        A[a] = n;
        printf("%d\n",A[i]);
    }   
    return 0;
}

C++: #include<iostream>
#include<algorithm>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
 
int main(){
  int a[10];
  rep(i,10){
    cin >> a[i];
    a[i] = -1*a[i];
  }

  sort(a, a+10);
 
  rep(i,3) cout << -1 * a[i] << endl;
 
     
}

C++: #include <iostream>
#include <algorithm>
#include <vector>
#include <cstdio>
#include <string>
#include <set>
#include <queue>
#include <stack>
#include <cmath>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<long long > vll;
typedef vector< vi > vvi;
int H[10];
int main() {
	for (int i = 0; i < 10; i++) {
		cin >> H[i];
	}
	sort(H.rbegin(), H.rend());
	for (int i = 0; i <3 ; i++) {
		cout << H[i] << endl;
	}
}

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

using namespace std;

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

C++: #include <iostream>
#include <algorithm>
using namespace std;
int main(){
    int input[10];
    
    for(int i = 0; i < 10; i++){
        cin >> input[i];
    }
    
    sort(input, input+10, greater<int>());
    
    for(int n = 0; n < 3; n++){
        cout << input[n] << endl;
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

int main()
{
    int temp;
    int height[10];
    int n = sizeof(height)/sizeof(height[0]);
    for(int x = 0; x < n; x++){
        cin >> height[x];//input
    }
    for(int q = 0; q < n - 1; q++){
        for(int w = 0; w < n - q - 1; w++)
        {
            if(height[w] < height [w+1])
            {
                temp  = height[w];
                height[w] = height[w+1];
                height[w+1] = temp;
            }
        }
    }
    for(int x = 0; x < 3; x++){
        cout << height[x] << endl;
    }
    return 0;
}

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

C++:  #include <cstdio>
 #include <queue>
 using namespace std;
 
 int main()
 {
         priority_queue<int> pmount;

         int mount[11];

         for(int j=0;j<10;j++){
                 scanf("%d",&mount[j]);
                 pmount.push(mount[j]);
         }

         for(int i=0;i<3;i++){
                 printf("%d\n",pmount.top());
                 pmount.pop();
         }

         return 0;

 }

C++: #include<stdio.h>
using namespace std;

int main()
{
	int length;
	int a, b, c,tmp;
	a = b = c = 0;

	for (int i = 0; i < 10; i++)
	{
		scanf("%d",&length);
		if (length > a)
		{
			if (length > b)
			{
				a = b;
				if (length > c)
				{
					b = c;
					c = length;
				}
				else
				{
					b = length;
				}
			}
			else
			{
				a = length;
			}
		}
		printf("%d\n",c);
		printf("%d\n",b);
		printf("%d\n",a);
	}
	return 0;
}

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

int main(){
	int x[10];
	for (int i = 0; i < 10; i++){
		cin >> x[i];
	}
	sort(end(x), begin(x));
	cout << x[0];
	cout << x[1];
	cout << x[2];
	
}

C++: #include <stdio.h>

int main(void){
    int data[10],bf;
    for(int i=0;i<10;i++){
        scanf("%d",&data[i]);
    }
    for(int i=10-1;i>0;i--){
        for(int j=0;j<i;j++){
            if(data[j]<data[j+1]){
                bf=data[j];
                data[j]=data[j+1];
                data[j+1]=bf;
            }
        }
    }
    for(int i=0;i<3;i++){
        printf("%d\n",data[i]);
    }
    return 0;
}