Go: package main

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

var scanner = bufio.NewScanner(os.Stdin)

// 文字列を1行取得
func StrStdin() (stringReturned string) {
//	scanner := bufio.NewScanner(os.Stdin)

	scanner.Scan()
	stringInput := scanner.Text()

	stringReturned = strings.TrimSpace(stringInput)
	return
}

// 整数値1つ取得
func IntStdin() (int, error) {
	stringInput := StrStdin()
	return strconv.Atoi(strings.TrimSpace(stringInput))
}

// 空白や空文字だけの値を除去したSplit()
func SplitWithoutEmpty(stringTargeted string, delim string) (stringReturned []string) {
	stringSplited := strings.Split(stringTargeted, delim)

	for _, str := range stringSplited {
		if str != "" {
			stringReturned = append(stringReturned, str)
		}
	}

	return
}

// デリミタで分割して文字列スライスを取得
func SplitStrStdin(delim string) (stringReturned []string) {
	// 文字列で1行取得
	stringInput := StrStdin()

	// 空白で分割
	// stringSplited := strings.Split(stringInput, delim)
	stringReturned = SplitWithoutEmpty(stringInput, delim)

	return
}

// デリミタで分割して整数値スライスを取得
func SplitIntStdin(delim string) (intSlices []int, err error) {
	// 文字列スライスを取得
	stringSplited := SplitStrStdin(" ")

	// 整数スライスに保存
	for i := range stringSplited {
		var iparam int
		iparam, err = strconv.Atoi(stringSplited[i])
		if err != nil {
			return
		}
		intSlices = append(intSlices, iparam)
	}
	return
}

func main() {
	nk, _ := SplitIntStdin(" ")
	n, k := nk[0], nk[1]
	kind := make([]int, n)
	for i := 0; i < k; i++ {
		var tmp []int
		var err error
		if tmp, err = SplitIntStdin(" "); err != nil {
			panic(err)
		}
		kind[tmp[0]-1] = tmp[1]
	}
	dp := make([][3][3]int, n)
	if kind[0] > 0 {
		dp[0][0][kind[0]-1] = 1
	} else {
		for i := 0; i < 3; i++ {
			dp[0][0][i] = 1
		}
	}
	if kind[1] > 0 {
		for i := 0; i < 3; i++ {
			dp[1][i][kind[1]-1] = dp[0][0][i]
		}
	} else {
		for i := 0; i < 3; i++ {
			for j := 0; j < 3; j++ {
				dp[1][i][j] = dp[0][0][i]
			}
		}
	}
	for i := 1; i < n-1; i++ {
		if kind[i+1] > 0 {
			for j := 0; j < 3; j++ {
				if j == kind[i+1]-1 {
					for k := 0; k < 3; k++ {
						if j != k {
							dp[i+1][j][kind[i+1]-1] += dp[i][k][j]
							dp[i+1][j][kind[i+1]-1] %= 10000
						}
					}
				} else {
					for k := 0; k < 3; k++ {
						dp[i+1][j][kind[i+1]-1] += dp[i][k][j]
						dp[i+1][j][kind[i+1]-1] %= 10000
					}
				}
			}
		} else {
			for j := 0; j < 3; j++ {
				for k := 0; k < 3; k++ {
					for l := 0; l < 3; l++ {
						if j != k || k != l {
							dp[i+1][k][j] += dp[i][l][k]
							dp[i+1][k][j] %= 10000
						}
					}
				}
			}
		}
	}
	result := 0
	for i := 0; i < 3; i++ {
		for j := 0; j < 3; j++ {
			result += dp[n-1][i][j]
		}
	}
	// fmt.Println(dp)
	// fmt.Println(kind)
	fmt.Println(result % 10000)
}

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

enum Sauce{NOT_DETERMINED=0, Tomato=1, Cream=2, Basil=3};
enum Seq{SAME, DIFF};

const int divisor = 10000;

class Pasta{
public:
	Pasta(int _N);
	~Pasta();

	Sauce* sauceary;
	int schedule(int i, Sauce yesterday, Seq seq);

private:
	int N;
	int** memo;
};

Pasta::Pasta(int _N){
	N = _N;
	static Sauce* sauceary = new Sauce[N+1];
	memo = new int*[N+1];

	for (int i = 0; i <= N; i++) sauceary[i] = NOT_DETERMINED;

	for (int i = 0; i <= N; i++){
		memo[i] = new int[4];
		for (int j = 0; j < 4; j++) memo[i][j] = -1;
	}
}

Pasta::~Pasta(){
	delete[] sauceary;
	delete[] memo;
}

int Pasta::schedule(int i, Sauce yesterday, Seq seq){
	if (i == N+1) return 1;
	if (seq == SAME && yesterday == sauceary[i]) return 0;

	if (sauceary[i] == NOT_DETERMINED){
		switch (yesterday){
		case Tomato: 
			if (seq == SAME) return (schedule(i+1, Cream, DIFF) + schedule(i+1, Basil, DIFF)) % divisor;
			else if (seq == DIFF) return (schedule(i+1, Tomato, SAME) + schedule(i+1, Cream, DIFF) + schedule(i+1, Basil, DIFF)) % divisor;
		case Cream:
			if (seq == SAME) return (schedule(i+1, Tomato, DIFF) + schedule(i+1, Basil, DIFF)) % divisor;
			else if (seq == DIFF) return (schedule(i+1, Tomato, DIFF) + schedule(i+1, Cream, SAME) + schedule(i+1, Basil, DIFF)) % divisor;
		case Basil:
			if (seq == SAME) return (schedule(i+1, Tomato, DIFF) + schedule(i+1, Cream, DIFF)) % divisor;
			else if (seq == DIFF) return (schedule(i+1, Tomato, DIFF) + schedule(i+1, Cream, DIFF) + schedule(i+1, Basil, SAME)) % divisor;
		}
	}
	else {
		if (yesterday == sauceary[i]) return schedule(i+1, sauceary[i], SAME) % divisor;
		else return schedule(i+1, sauceary[i], DIFF) % divisor;
	}
}

int main(){
	int N, K;
	cin >> N >> K;

	Pasta* pasta = new Pasta(N);

	for (int i = 0; i < K; i++){
		int A, B;
		cin >> A >> B;
		pasta->sauceary[A] = (Sauce)B;
	}

	int ans;
	if (pasta->sauceary[1] == NOT_DETERMINED){
		ans = pasta->schedule(2, Tomato, DIFF) + pasta->schedule(2, Cream, DIFF) + pasta->schedule(2, Basil, DIFF);
	} else {
		ans = pasta->schedule(2, pasta->sauceary[1], DIFF);
	}

	cout << ans % divisor << endl;

	delete pasta;
	return 0;
}

C++: #include <iostream>
#define rep(i,n) for(int i = 0; i < n; i++)
using namespace std;
 
int dp[3][110][2], num[110];
int n,k;
 
int main(){
    rep(i,110) num[i] = -1;
    cin >> n >> k;
    rep(i,k){
        int a,b;
        cin >> a >> b;
        a--; b--;
        num[a] = b;
    }
    if(num[0] == -1) rep(i,3) dp[i][0][0] = 1;
    else dp[num[0]][0][0] = 1;
    for(int i = 1; i < n; i++){
        rep(j,3){
            if(num[i] != -1 && num[i] != j) continue;
            dp[j][i][1] += dp[j][i-1][0];
            dp[j][i][1] %= 10000;
            rep(u,3){
                if(j == u) continue;
                dp[j][i][0] += dp[u][i-1][0]+dp[u][i-1][1];
                dp[j][i][0] %= 10000;
            }
        }
    }
        /*
    rep(i,n){
        rep(j,3){
            rep(u,2){
                cout << dp[j][i][u] << " ";
            }
            cout << endl;
        }
        cout << endl;
    }
    */
    int ans = 0;
    rep(i,3) rep(j,2) ans += dp[i][n-1][j];
    cout << ans%10000 << endl;
}