AlgorithmStudy_Java/src/backjoon/_1904.java at master · dsguseong/AlgorithmStudy_Java

Repository navigation

package backjoon;

// https://www.acmicpc.net/problem/1904

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class _1904 {

// 첫 번째 줄에 자연수 N이 주어진다. (1 ≤ N ≤ 1,000,000)

// memory 51820 runtime 264

public static int[] dp = new int[1000001];

public static void main(String[] args) throws IOException {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

int N = Integer.parseInt(br.readLine());

//피보나치 수열

dp[0] = 0;

dp[1] = 1;

dp[2] = 2;

// -1로 초기화

for(int i=3; i < dp.length; i++ ){

dp[i] = -1;

}

System.out.println(Tile(N));

}

static int Tile(int n){

if(dp[n] == -1){

dp[n] = (Tile(n-1) + Tile(n-2)) % 15746;

}

return dp[n];

}

input

output