CSES - Datatähti 2015 loppu - Results
Submission details
Task:Urkupillit
Sender:MusserO
Submission time:2015-01-29 15:58:51
Language:Java
Status:READY
Result:45
Feedback
groupverdictscore
#1ACCEPTED12
#2ACCEPTED33
#30
Test results
testverdicttimegroup
#1ACCEPTED0.05 s1details
#2ACCEPTED0.03 s1details
#3ACCEPTED0.04 s1details
#4ACCEPTED0.04 s1details
#5ACCEPTED0.03 s1details
#6ACCEPTED0.04 s2details
#7ACCEPTED0.04 s2details
#8ACCEPTED0.06 s2details
#9ACCEPTED0.05 s2details
#10ACCEPTED0.04 s2details
#11--3details
#120.04 s3details
#130.05 s3details
#140.20 s3details
#15--3details

Code

import java.io.*;
import java.util.*;

public class Urkupillit {
	public static void main(String[] args) {
		IO io = new IO();
		int n = io.nextInt();
		int k = io.nextInt();
		int j = 1;
		int m = 0;
		String v = "";
		String w = "";
		ArrayList<Integer> l = new ArrayList<Integer>();	
		for (int i = 1; i <= n; ++i){
			if ((n-i)*(n-i-1)/2 > k){
				v += i+ " ";
				++j;	
			} else {
				l.add(i);	
			}
		}
		if (k!=1){
			for (int i = n; i >= j; --i){
				if (m+i-j <= k && i != j){
					v += i+" ";
					l.remove(l.indexOf(i));
					m += i-j;			
				} else if (m == k) {
					break;
				} else {
					
					if (j+n-i > i){
						--n;
					} else {
						l.remove(l.indexOf(j+n-i));
						v += j+i+" ";	
						m += n-i;				
					}
				}
			}
			
		}
		for (int i : l){
			if (k == 1 && i+1 == n && l.get(l.indexOf(i)+1) == n){
				v += i+1+" "+i;
				break;
			}
			v += i+" ";
		}
		/*if (k-m < j-1){
			boolean br = false;
			for (int i = 0; i < l.size(); ++i){
				if (br){
					br =false;
					continue;
				}
				if (i % 2 == 0 && m < k){
					v += l.get(i+1) + " ";
					v += l.get(i) + " ";
					++m;
					br = true;
				} else {
					v+= l.get(i)+" ";
				}
			}
		} else {

		}*/
		io.println(v);
		io.close();
	}

}


class IO extends PrintWriter {
	private InputStreamReader r;
	private static final int BUFSIZE = 1 << 15;
	private char[] buf;
	private int bufc;
	private int bufi;
	private StringBuilder sb;
	
	public IO() {
		super(new BufferedOutputStream(System.out));
		r = new InputStreamReader(System.in);
		
		buf = new char[BUFSIZE];
		bufc = 0;
		bufi = 0;
		sb = new StringBuilder();
	}
	
	private void fillBuf() throws IOException {
		bufi = 0;
		bufc = 0;
		while(bufc == 0) {
			bufc = r.read(buf, 0, BUFSIZE);
			if(bufc == -1) {
				bufc = 0;
				return;
			}
		}
	}
	
	private boolean pumpBuf() throws IOException {
		if(bufi == bufc) {
			fillBuf();
		}
		return bufc != 0;
	}
	
	private boolean isDelimiter(char c) {
		return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f';
	}
	
	private void eatDelimiters() throws IOException {
		while(true) {
			if(bufi == bufc) {
				fillBuf();
				if(bufc == 0) throw new RuntimeException("IO: Out of input.");
			}
			
			if(!isDelimiter(buf[bufi])) break;
			++bufi;
		}
	}
	
	public String next() {
		try {
			sb.setLength(0);
			
			eatDelimiters();
			int start = bufi;
			
			while(true) {
				if(bufi == bufc) {
					sb.append(buf, start, bufi - start);
					fillBuf();
					start = 0;
					if(bufc == 0) break;
				}
				
				if(isDelimiter(buf[bufi])) break;
				++bufi;
			}
			
			sb.append(buf, start, bufi - start);
			
			return sb.toString();
		} catch(IOException e) {
			throw new RuntimeException("IO.next: Caught IOException.");
		}
	}
	
	public int nextInt() {
		try {
			int ret = 0;
			
			eatDelimiters();
			
			boolean positive = true;
			if(buf[bufi] == '-') {
				++bufi;
				if(!pumpBuf()) throw new RuntimeException("IO.nextInt: Invalid int.");
				positive = false;
			}
			
			boolean first = true;
			while(true) {
				if(!pumpBuf()) break;
				if(isDelimiter(buf[bufi])) {
					if(first) throw new RuntimeException("IO.nextInt: Invalid int.");
					break;
				}
				first = false;
				
				if(buf[bufi] >= '0' && buf[bufi] <= '9') {
					if(ret < -214748364) throw new RuntimeException("IO.nextInt: Invalid int.");
					ret *= 10;
					ret -= (int)(buf[bufi] - '0');
					if(ret > 0) throw new RuntimeException("IO.nextInt: Invalid int.");
				} else {
					throw new RuntimeException("IO.nextInt: Invalid int.");
				}
				
				++bufi;
			}
			
			if(positive) {
				if(ret == -2147483648) throw new RuntimeException("IO.nextInt: Invalid int.");
				ret = -ret;
			}
			
			return ret;
		} catch(IOException e) {
			throw new RuntimeException("IO.nextInt: Caught IOException.");
		}
	}
	
	public long nextLong() {
		try {
			long ret = 0;
			
			eatDelimiters();
			
			boolean positive = true;
			if(buf[bufi] == '-') {
				++bufi;
				if(!pumpBuf()) throw new RuntimeException("IO.nextLong: Invalid long.");
				positive = false;
			}
			
			boolean first = true;
			while(true) {
				if(!pumpBuf()) break;
				if(isDelimiter(buf[bufi])) {
					if(first) throw new RuntimeException("IO.nextLong: Invalid long.");
					break;
				}
				first = false;
				
				if(buf[bufi] >= '0' && buf[bufi] <= '9') {
					if(ret < -922337203685477580L) throw new RuntimeException("IO.nextLong: Invalid long.");
					ret *= 10;
					ret -= (long)(buf[bufi] - '0');
					if(ret > 0) throw new RuntimeException("IO.nextLong: Invalid long.");
				} else {
					throw new RuntimeException("IO.nextLong: Invalid long.");
				}
				
				++bufi;
			}
			
			if(positive) {
				if(ret == -9223372036854775808L) throw new RuntimeException("IO.nextLong: Invalid long.");
				ret = -ret;
			}
			
			return ret;
		} catch(IOException e) {
			throw new RuntimeException("IO.nextLong: Caught IOException.");
		}
	}
	
	public double nextDouble() {
		return Double.parseDouble(next());
	}
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
5 0

correct output
1 2 3 4 5 

user output
1 2 3 4 5 

Test 2

Group: 1

Verdict: ACCEPTED

input
5 10

correct output
5 4 3 2 1 

user output
5 4 3 2 1 

Test 3

Group: 1

Verdict: ACCEPTED

input
5 3

correct output
4 1 2 3 5 

user output
1 5 2 3 4 

Test 4

Group: 1

Verdict: ACCEPTED

input
5 1

correct output
2 1 3 4 5 

user output
1 2 3 5 4

Test 5

Group: 1

Verdict: ACCEPTED

input
5 2

correct output
3 1 2 4 5 

user output
1 2 5 3 4 

Test 6

Group: 2

Verdict: ACCEPTED

input
100 0

correct output
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

Test 7

Group: 2

Verdict: ACCEPTED

input
100 4950

correct output
100 99 98 97 96 95 94 93 92 91...

user output
100 99 98 97 96 95 94 93 92 91...

Test 8

Group: 2

Verdict: ACCEPTED

input
100 2279

correct output
100 99 98 97 96 95 94 93 92 91...

user output
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

Test 9

Group: 2

Verdict: ACCEPTED

input
100 2528

correct output
100 99 98 97 96 95 94 93 92 91...

user output
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

Test 10

Group: 2

Verdict: ACCEPTED

input
100 4483

correct output
100 99 98 97 96 95 94 93 92 91...

user output
1 2 3 4 100 99 98 97 96 95 94 ...

Test 11

Group: 3

Verdict:

input
100000 0

correct output
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

user output
(empty)

Test 12

Group: 3

Verdict:

input
100000 4999950000

correct output
100000 99999 99998 99997 99996...

user output
(empty)

Error:
Exception in thread "main" java.lang.RuntimeException: IO.nextInt: Invalid int.
	at IO.nextInt(Urkupillit.java:179)
	at Urkupillit.main(Urkupillit.java:8)

Test 13

Group: 3

Verdict:

input
100000 2969035543

correct output
100000 99999 99998 99997 99996...

user output
(empty)

Error:
Exception in thread "main" java.lang.RuntimeException: IO.nextInt: Invalid int.
	at IO.nextInt(Urkupillit.java:179)
	at Urkupillit.main(Urkupillit.java:8)

Test 14

Group: 3

Verdict:

input
100000 2495939870

correct output
100000 99999 99998 99997 99996...

user output
(empty)

Error:
Exception in thread "main" java.lang.RuntimeException: IO.nextInt: Invalid int.
	at IO.nextInt(Urkupillit.java:179)
	at Urkupillit.main(Urkupillit.java:8)

Test 15

Group: 3

Verdict:

input
100000 1279770330

correct output
100000 99999 99998 99997 99996...

user output
(empty)