CSES - Datatähti 2015 loppu - Results
Submission details
Task:Urkupillit
Sender:MusserO
Submission time:2015-01-29 15:58:51 +0200
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)