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Copy path_15650.java
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54 lines (46 loc) ยท 1.02 KB
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package backjoon;
// https://www.acmicpc.net/problem/15650
// N๊ณผ M (2)
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class _15650 {
public static int[] arr;
public static int N, M;
public static StringBuilder sb = new StringBuilder();
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer(br.readLine());
// memory 11520 runtime 80
N = Integer.parseInt(st.nextToken());
M = Integer.parseInt(st.nextToken());
arr = new int[M];
dfs(1,0);
System.out.println(sb);
}
static void dfs(int current, int depth){
if(depth == M){
for(int v : arr){
sb.append(v).append(" ");
}
sb.append("\n");
return;
}
for(int i=current; i<=N; i++){
arr[depth] = i;
dfs(i+1, depth+1);
}
}
}
/*
input
4 2
output
1 2
1 3
1 4
2 3
2 4
3 4
*/