Submission #4068732


Source Code Expand

import string

ch = string.ascii_lowercase

s = input()
K =  int(input())
pointer = 0
buf = []
boundary = [('a', i) for i in range(len(s)) if s[i] == 'a']
boundary.sort(key=lambda x: x[0])
while True:
  if len(buf) >= 5 or pointer >= len(ch):
    break
  tmp = len(boundary)
  if tmp > 0:
    for _ in range(1):
      element = boundary.pop(0)
      buf.append(element[0])
      buf = list(set(buf))
      if element[1] < len(s) - 1 and len(element[0]) <= 4:
        next_element = (element[0] + s[element[1] + 1], element[1] + 1)
        boundary.append(next_element)
  if len(boundary) == 0:
    if pointer + 1 >= len(ch):
      break
    pointer += 1
    if s.find(ch[pointer]) != -1:
      boundary = [(ch[pointer], i) for i in range(len(s)) if s[i] == ch[pointer]]
  buf.sort()
  boundary.sort(key=lambda x: x[0])
  #print(boundary)
  #print(buf)
  
print(buf[K - 1])

Submission Info

Submission Time
Task C - K-th Substring
User u271969h
Language Python (3.4.3)
Score 0
Code Size 907 Byte
Status WA
Exec Time 2104 ms
Memory 4332 KB

Judge Result

Set Name Sample Subtask All
Score / Max Score 0 / 0 0 / 200 0 / 100
Status
AC × 3
AC × 10
WA × 1
AC × 16
WA × 1
TLE × 2
Set Name Test Cases
Sample 0_000.txt, 0_001.txt, 0_002.txt
Subtask 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt
All 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 2_011.txt, 2_012.txt, 2_013.txt, 2_014.txt, 2_015.txt, 2_016.txt, 2_017.txt, 2_018.txt
Case Name Status Exec Time Memory
0_000.txt AC 24 ms 3768 KB
0_001.txt AC 25 ms 3764 KB
0_002.txt AC 25 ms 3764 KB
1_003.txt WA 24 ms 3764 KB
1_004.txt AC 25 ms 3764 KB
1_005.txt AC 26 ms 3764 KB
1_006.txt AC 25 ms 3768 KB
1_007.txt AC 24 ms 3764 KB
1_008.txt AC 25 ms 3900 KB
1_009.txt AC 24 ms 3768 KB
1_010.txt AC 25 ms 3772 KB
2_011.txt TLE 2104 ms 4332 KB
2_012.txt TLE 2104 ms 4332 KB
2_013.txt AC 30 ms 3764 KB
2_014.txt AC 31 ms 3764 KB
2_015.txt AC 28 ms 3764 KB
2_016.txt AC 31 ms 3764 KB
2_017.txt AC 32 ms 3764 KB
2_018.txt AC 31 ms 3764 KB