CSES - Aalto Competitive Programming 2024 - wk7 - Wed

CSES - Aalto Competitive Programming 2024 - wk7 - Wed - Results

Submission details
Task:	Longest route
Sender:	aalto2024h_007
Submission time:	2024-10-23 16:56:26 +0300
Language:	Python3 (CPython3)
Status:	READY
Result:	RUNTIME ERROR

Test results
test	verdict	time
#1	ACCEPTED	0.02 s	details
#2	ACCEPTED	0.02 s	details
#3	RUNTIME ERROR	0.02 s	details
#4	RUNTIME ERROR	0.02 s	details
#5	RUNTIME ERROR	0.02 s	details
#6	RUNTIME ERROR	0.66 s	details
#7	RUNTIME ERROR	0.65 s	details
#8	RUNTIME ERROR	0.67 s	details
#9	RUNTIME ERROR	0.65 s	details
#10	RUNTIME ERROR	0.67 s	details
#11	ACCEPTED	0.60 s	details
#12	RUNTIME ERROR	0.59 s	details
#13	ACCEPTED	0.02 s	details
#14	RUNTIME ERROR	0.02 s	details
#15	RUNTIME ERROR	0.48 s	details
#16	ACCEPTED	0.02 s	details
#17	RUNTIME ERROR	0.46 s	details
#18	RUNTIME ERROR	0.58 s	details
#19	RUNTIME ERROR	0.02 s	details
#20	RUNTIME ERROR	0.35 s	details
#21	ACCEPTED	0.02 s	details

Code

def find_path(s, f, visited=None):
    global g, n

    path = [s]
    if s == f:
        paths[s] = path
        return path

    max_path = None
    res_path = None
    for w in g[s]:
        # print(w)
        if paths[w]:
            res_path = paths[w]
            if res_path and (not max_path or len(res_path) > len(max_path)):
                max_path = res_path
        else:
            res_path = find_path(w, f)
            if res_path and (not max_path or len(res_path) > len(max_path)):
                max_path = res_path

    path.extend(max_path)
    paths[s] = path
    # print('mp', max_path, res_path)
    return path


n, m = map(int, input().split())
g = [[] for _ in range(n)]
for i in range(m):
    a, b = map(int, input().split())
    g[a - 1].append(b - 1)

paths = [[] for _ in range(n)]
# print(paths)
#
# print(g)
path = find_path(0, n - 1)
# print(paths)
print(len(path))
for i in range(len(path)):
    path[i] += 1
print(*path)

Test details

Test 1

Verdict: ACCEPTED

input
`10 10 2 6 1 2 4 6 5 6 ...` view save

correct output
`5 1 2 5 6 10` view save

user output
`5 1 2 5 6 10` view save

Test 2

Verdict: ACCEPTED

input
`10 10 3 9 6 5 6 9 2 8 ...` view save

correct output
`4 1 2 8 10` view save

user output
`4 1 2 8 10` view save

Test 3

Verdict: RUNTIME ERROR

input
`10 10 5 10 4 10 8 7 7 10 ...` view save

correct output
`3 1 4 10` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 4

Verdict: RUNTIME ERROR

input
`10 10 8 10 2 6 2 10 7 10 ...` view save

correct output
`IMPOSSIBLE` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 5

Verdict: RUNTIME ERROR

input
`10 10 8 4 2 10 1 3 4 9 ...` view save

correct output
`5 1 8 7 2 10` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 6

Verdict: RUNTIME ERROR

input
`100000 200000 86085 57043 45527 29537 41919 84699 95993 82082 ...` view save

correct output
`IMPOSSIBLE` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 7

Verdict: RUNTIME ERROR

input
`100000 200000 10961 53490 59843 36636 40674 66772 32618 41570 ...` view save

correct output
`31 1 37239 44082 21537 90572 7332...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 7 more times]
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 8

Verdict: RUNTIME ERROR

input
`100000 200000 87375 76468 38855 27547 49415 83191 38572 1524 ...` view save

correct output
`35 1 91343 59014 56722 34054 3875...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 1 more time]
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 9

Verdict: RUNTIME ERROR

input
`100000 200000 17973 70097 19982 80323 96486 2404 75650 63274 ...` view save

correct output
`36 1 25685 90292 59380 91058 2663...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 10

Verdict: RUNTIME ERROR

input
`100000 200000 74343 53088 97443 7885 64807 58252 9374 33312 ...` view save

correct output
`28 1 26390 15278 11333 48479 6881...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 2 more times]
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 11

Verdict: ACCEPTED

input
`100000 199998 1 100000 1 100000 2 100000 2 100000 ...` view save

correct output
`2 1 100000` view save

user output
`2 1 100000` view save

Test 12

Verdict: RUNTIME ERROR

input
`100000 199998 1 2 1 2 2 3 2 3 ...` view save

correct output
`100000 1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 995 more times]
  File "/box/input/code.py", line 5, in find_path
    if s == f:
RecursionError: maximum recursion depth exceeded in comparison

Test 13

Verdict: ACCEPTED

input
`2 1 1 2` view save

correct output
`2 1 2` view save

user output
`2 1 2` view save

Test 14

Verdict: RUNTIME ERROR

input
`5 4 1 2 2 3 3 4 1 5` view save

correct output
`2 1 5` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 15

Verdict: RUNTIME ERROR

input
`99999 149997 1 3 3 5 5 7 7 9 ...` view save

correct output
`99999 1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 995 more times]
  File "/box/input/code.py", line 5, in find_path
    if s == f:
RecursionError: maximum recursion depth exceeded in comparison

Test 16

Verdict: ACCEPTED

input
`3 2 1 3 3 2` view save

correct output
`2 1 3` view save

user output
`2 1 3` view save

Test 17

Verdict: RUNTIME ERROR

input
`99999 149997 1 2 2 4 4 6 6 8 ...` view save

correct output
`99999 1 3 2 5 4 7 6 9 8 11 10 13 12 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 995 more times]
  File "/box/input/code.py", line 5, in find_path
    if s == f:
RecursionError: maximum recursion depth exceeded in comparison

Test 18

Verdict: RUNTIME ERROR

input
`100000 200000 1 2 1 3 1 4 1 5 ...` view save

correct output
`IMPOSSIBLE` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 497 more times]
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 19

Verdict: RUNTIME ERROR

input
`5 4 2 1 3 1 1 4 1 5` view save

correct output
`2 1 5` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 22, in find_path
    path.extend(max_path)
TypeError: 'NoneType' object is not iterable

Test 20

Verdict: RUNTIME ERROR

input
`100000 99999 99999 100000 99998 99999 99997 99998 99996 99997 ...` view save

correct output
`100000 1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    path = find_path(0, n - 1)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  File "/box/input/code.py", line 18, in find_path
    res_path = find_path(w, f)
  [Previous line repeated 995 more times]
  File "/box/input/code.py", line 5, in find_path
    if s == f:
RecursionError: maximum recursion depth exceeded in comparison

Test 21

Verdict: ACCEPTED

input
`4 4 3 1 3 4 1 2 2 4` view save

correct output
`3 1 2 4` view save

user output
`3 1 2 4` view save

Aalto Competitive Programming 2024 - wk7 - Wed

Longest route

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Tasks

Submissions (aalto2024h_007)