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MakeIt1.java
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MakeIt1.java
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package Baekjoon.DP;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class MakeIt1 {
public static void main(String[] args) throws IOException {
//21676KB 232ms
// Scanner stdIn = new Scanner(System.in);
// int N = stdIn.nextInt();
//BufferedReader 사용 시 18288KB 148ms
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int N = Integer.parseInt(br.readLine());
int[] dp = new int[N + 1];
dp[1] = 0;
for (int i = 2; i < N + 1; i++) {
if (i % 6 == 0) {
dp[i] = Math.min(dp[i - 1], Math.min(dp[i / 3], dp[i / 2])) + 1;
} else if (i % 3 == 0) {
dp[i] = Math.min(dp[i - 1], dp[i / 3]) + 1;
} else if (i % 2 == 0) {
dp[i] = Math.min(dp[i - 1], dp[i / 2]) + 1;
} else {
dp[i] = dp[i - 1] + 1;
}
}
System.out.println(dp[N]);
}
}