Go: package main

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

var scanner = bufio.NewScanner(os.Stdin)

func main() {
	for scanner.Scan() {
		input := strings.Split(scanner.Text(), ",")
		cards := make([]int, 5)
		for i :=range input {
			cards[i], _ = strconv.Atoi(input[i])
		}
		sort.Sort(sort.IntSlice(cards))
		if cards[0] == cards[1] && cards[2] == cards[3] && cards[2] == cards[1] {
			fmt.Println("four card")
		} else if cards[1] == cards[2] && cards[3] == cards[4] && cards[3] == cards[2]{
			fmt.Println("four card")
		} else if cards[0] == cards[1] && cards[1] == cards[2] && cards[3] == cards[4] {
			fmt.Println("full house")
		} else if cards[0] == cards[1] && cards[2] == cards[3] && cards[3] == cards[4] {
			fmt.Println("full house")
		} else if cards[0] == 1 && cards[1] == 10 && cards[2] == 11 && cards[3] == 12 && cards[4] == 13 {
			fmt.Println("straight")
		} else if cards[0]+1 == cards[1] && cards[1]+1 == cards[2] && cards[2]+1 == cards[3] && cards[3]+1 == cards[4] {
			fmt.Println("straight")
		} else if (cards[0] == cards[1] && cards[1] == cards[2]) || (cards[1] == cards[2] && cards[2] == cards[3]) || (cards[2] == cards[3] && cards[3] == cards[4]) {
			fmt.Println("three card")
		} else if ((cards[0] == cards[1]) && ((cards[2] == cards[3]) || (cards[3] == cards[4]))) || ((cards[1] == cards[2]) && (cards[3] == cards[4])) {
			fmt.Println("two pair")
		} else if cards[0] == cards[1] || cards[1] == cards[2] || cards[2] == cards[3] || cards[3] == cards[4] {
			fmt.Println("one pair")
		} else {
			fmt.Println("null")
		}
	}
}

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

using namespace std;

int main()
{
  vector<int> poker;
  int check[15] = {0};
  int two = 0;
  int three = 0;
  int four = 0;
  int ans = 0;

  string trump;
  getline(cin,trump);

  int a = 0;
  int b = 0;
  for(char e : trump){
    if(e == 49){
      if(b == 0){
        b = 1;
      }
      else{
        a = (e - 48) + 10;
        poker.push_back(a);
        b = 0;
      }
    }
    else if(48 <= e && 57 >= e){
      if(b == 1){
        a = (e - 48) + 10;
        b = 0;
      }
      else{
        a = e - 48;
      }
      poker.push_back(a);
    }
    else{
      if(b == 1){
        poker.push_back(b);
        b = 0;
      }
    }
  }
  
  if(b == 1){
    poker.push_back(b);
  }

  for(int e : poker){
    cout<<e<<endl;
    ++check[e];
  }
  check[14] = check[1];

  for(int i = 1;i < 14;++i){
    if(check[i] == 4){
      ++four;
    }
    else if(check[i] == 3){
      ++three;
    }
    else if(check[i] == 2){
      ++two;
    }
  }

  for(int i = 1;i < 14;++i){
    cout<<check[i]<<endl;
  }

  cout<<two<<" "<<three<<" "<<four<<endl;

  if(four == 1){
    cout<<"four card"<<endl;
    ans = 1;
  }
  else if(three == 1){
    ans = 1;
    if(two == 1){
      cout<<"full house"<<endl;
    }
    else{
      cout<<"three card"<<endl;
    }
  }
  else if(two == 2){
    ans = 1;
    cout<<"two pair"<<endl;
  }
  else if(two == 1){
    ans = 1;
    cout<<"one pair"<<endl;
  }
  else{
    for(int i = 1;i < 11;++i){
      if(check[i] == check[i+1] && check[i] == check[i+2] && check[i] == check[i+3] && check[i] == check[i+4] && check[i] != 0){
        cout<<"straight"<<endl;
        ans = 1;
        break;
      }
    }
  }

  if(ans == 0){
    cout<<"null"<<endl;
  }

  return 0;
}

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

int main() {
  int card[5];
  while(scanf("%d,%d,%d,%d,%d", 
	      &card[0], &card[1], &card[2], &card[3], &card[4]) != EOF) {
    sort(&card[0], &card[4] + 1);

    int data1[5];
    int kumi = -1;
    int before = 0;
    int count = 1;

    for(int i = 0; i < 5; i++) {
      if(card[i] != before) {
	data1[++kumi] = 1;
      } else {
	data1[kumi]++;
      }
      before = card[i];
    }
    kumi++;
    for(int i = 0; i < 5; i++) {
      cout << data1[i] << ", ";
    }
    cout << kumi << endl;
    if(kumi == 2) {
      if(data1[0] == 4 || data1[1] == 4) {
	cout << "four card" << endl;
      }
      if(data1[0] == 3 || data1[1] == 3) {
	cout << "full house" << endl;
      }
    }
    if(kumi == 3) {
      if(data1[0] == 3 || data1[1] == 3 || data1[2] == 3) {
	cout << "three card" << endl;
      }
      if(data1[0] == 1 || data1[1] == 1 || data1[2] == 1) {
	cout << "two pair" << endl;
      }
    }
    if(kumi == 4) {
      cout << "one pair" << endl;
    }
    if(kumi == 5) {
      bool flag = false;
      for(int i = 0; i+1 < 5; i++) {
	if(card[i+1] - card[i] != 1) {
	  break;
	}
	if((i+1)+1 == 5) flag = true;
      }
      if(card[0] == 1 && card[1] == 10 &&
	 card[2] == 11 && card[3] == 12 && card[4] == 13) flag = true;

      if(flag) {
	cout << "straight" << endl;
      } else {
	cout << "null" << endl;
      }
    }
  }
  return 0;
}

C++: #include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <cstring>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include <stdio.h>
#include <sstream>
#include <stdlib.h>
#include <math.h>
using namespace std;
 
#define rep(i,n) for(int i=0; i<n; i++)
#define FOR(i,s,n) for(int i=s; i<n; i++)
#define ALL(x) x.begin(), x.end()
#define pb push_back
#define foreach(it,con) for(auto it=con.begin();it!=con.end();it++)
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef vector<int> vi;

string judge(int* nums){
	set<int> st;
	map<int,int> count;
	FOR(i,1,14){
		count[i] = 0;
	}
	rep(i,5){
		st.insert(nums[i]);
		count[nums[i]]++;
	}
	
	bool is2 = false;
	bool is3 = false;
	int c=0;
	int mc=0;
	for(auto it=count.begin();it!=count.end();it++){
		if(*it>0){
			c++; 
			mc=max(mc,c);
		}else{
			c=0;
		}
		if(*it==4){
			return "four card";
		}else if(*it==3){
			is3 = true;
		}else if(*it==2){
			if(is3){
				return "full house";
			}else if(is2){
				return "two pair";
			}else{
				is2 = true;
			}
		}
	}
	if(mc==5){
		return "straight";
	}
	if(is3){
		return "three card";
	}else if(is2){
		return "one pair";
	}
	return "null";
}

int main(){
	int nums[5];
	while(scanf("%d,%d,%d,%d,%d",&nums[0],&nums[1],&nums[2],&nums[3],&nums[4])+1){
		cout << judge(nums) << endl;
	}
	return 0;	
}

C++: #include <string>
#include <iostream>
#include <map>
#include <cstdio>
 
using namespace std;
 
int main(){
    int hand[5];
 
    while(~scanf("%d", &hand[0])){
        for(int i = 1; i < 5; i++){
            scanf(",%d", &hand[i]);
        }
        int num[15] = {0};
 
        for(int i = 0; i < 5; i ++){
			if(hand[i] == 1) num[14]++;
			num[hand[i]]++;
		} 
        int h[7] = {0};
        string s[] = {"null", "one pair", "two pair", "three card", "straight", "full house", "four card"};
        int seq = 0;
        h[0] = 1;
        for(int i = 1; i < 15; i++){
            if(num[i-1] && num[i]) seq++;
            if(num[i] == 2 && i != 14) h[1]++;
            if(num[i] == 3) h[3]++;
            if(num[i] == 4) h[6]++;
        }
        if(h[1] > 1) h[2]++;
        if(h[1] && h[3]) h[5]++;
        if(seq == 4)
			if(!(num[2] && num[13])) h[4]++;
 
        for(int i = 6; i >= 0; i--){
            if(h[i]){
                cout << s[i] << endl;
                break;
            }
        }
    }
 
 
    return 0;
}