CSES - Datatähti 2025 alku

Submission details
Task:	Robotti
Sender:	Resident_emu
Submission time:	2024-11-01 09:20:47 +0200
Language:	Python3 (PyPy3)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	TIME LIMIT EXCEEDED	0
#2	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	TIME LIMIT EXCEEDED	--	1, 2	details
#2	TIME LIMIT EXCEEDED	--	1, 2	details
#3	TIME LIMIT EXCEEDED	--	1, 2	details
#4	TIME LIMIT EXCEEDED	--	1, 2	details
#5	RUNTIME ERROR	0.06 s	1, 2	details
#6	RUNTIME ERROR	0.06 s	1, 2	details
#7	RUNTIME ERROR	0.07 s	1, 2	details
#8	TIME LIMIT EXCEEDED	--	1, 2	details
#9	TIME LIMIT EXCEEDED	--	1, 2	details
#10	WRONG ANSWER	0.04 s	1, 2	details
#11	WRONG ANSWER	0.04 s	1, 2	details
#12	TIME LIMIT EXCEEDED	--	2	details
#13	RUNTIME ERROR	0.07 s	2	details
#14	TIME LIMIT EXCEEDED	--	2	details
#15	WRONG ANSWER	0.04 s	2	details
#16	WRONG ANSWER	0.04 s	2	details
#17	TIME LIMIT EXCEEDED	--	2	details
#18	TIME LIMIT EXCEEDED	--	2	details
#19	TIME LIMIT EXCEEDED	--	2	details
#20	TIME LIMIT EXCEEDED	--	2	details
#21	RUNTIME ERROR	0.09 s	2	details
#22	RUNTIME ERROR	0.09 s	2	details
#23	WRONG ANSWER	0.04 s	2	details
#24	WRONG ANSWER	0.06 s	2	details

Code

n = int(input(""))
m  = input("")
steps_taken = 0
coins_collected = 0
while True:
    m_reversed = m[::-1]
    location_of_R = m.find("R")
    location_of_reversed_R = m_reversed.find("R")
    
    Location_for_nearest_coin_forward = m.find("*", location_of_R)
    Location_for_nearest_coin_backward = m_reversed.find("*", location_of_reversed_R)
    Location_for_nearest_coin_backward = (n-1)-Location_for_nearest_coin_backward
    
    steps_to_nearest_coin_F = Location_for_nearest_coin_forward-location_of_R
    steps_to_nearest_coin_B = Location_for_nearest_coin_backward-location_of_reversed_R
    if Location_for_nearest_coin_forward == -1 and Location_for_nearest_coin_backward == -1:
        print(steps_taken, coins_collected)
        break
    
    elif Location_for_nearest_coin_forward == -1:
        steps_taken += steps_to_nearest_coin_B
        coins_collected += 1
        m = m.replace("R", ".")
        List_m = list(m)
        List_m[Location_for_nearest_coin_forward+1] = "R"
        m = "".join(List_m)
    elif Location_for_nearest_coin_backward == -1:
        steps_taken += steps_to_nearest_coin_F
        coins_collected += 1
        m = m.replace("R", ".")
        List_m = list(m)
        List_m[Location_for_nearest_coin_forward] = "R"
        m = "".join(List_m)
    elif steps_to_nearest_coin_F > steps_to_nearest_coin_B:
        steps_taken += steps_to_nearest_coin_B
        coins_collected += 1
        m = m.replace("R", ".")
        List_m = list(m)
        List_m[Location_for_nearest_coin_backward+1] = "R"
        m = "".join(List_m)
    elif steps_to_nearest_coin_F < steps_to_nearest_coin_B:
        steps_taken += steps_to_nearest_coin_F
        coins_collected += 1
        m = m.replace("R", ".")
        List_m = list(m)
        List_m[Location_for_nearest_coin_forward] = "R"
        m = "".join(List_m)
    else:
        print(steps_taken, coins_collected)
        break

Test details

Test 1

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`1 R` view save

correct output
`0 0` view save

user output
(empty)

Test 2

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`10 ...R......` view save

correct output
`0 0` view save

user output
(empty)

Test 3

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`10 .R...*` view save

correct output
`12 5` view save

user output
(empty)

Test 4

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`10 *R****` view save

correct output
`0 0` view save

user output
(empty)

Test 5

Group: 1, 2

Verdict: RUNTIME ERROR

input
`1000 R................................` view save

correct output
`947 9` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 39, in <module>
    List_m[Location_for_nearest_coin_backward+1] = "R"
IndexError: list index out of range

Test 6

Group: 1, 2

Verdict: RUNTIME ERROR

input
`1000 .................................` view save

correct output
`886 9` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 39, in <module>
    List_m[Location_for_nearest_coin_backward+1] = "R"
IndexError: list index out of range

Test 7

Group: 1, 2

Verdict: RUNTIME ERROR

input
`1000 .........................` view save

correct output
`1287 400` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 39, in <module>
    List_m[Location_for_nearest_coin_backward+1] = "R"
IndexError: list index out of range

Test 8

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`1000 **********.***************...` view save

correct output
`0 0` view save

user output
(empty)

Test 9

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

input
`1000 ******************************...` view save

correct output
`0 0` view save

user output
(empty)

Test 10

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 R*****************************...` view save

correct output
`999 999` view save

user output
`0 0` view save

Test 11

Group: 1, 2

Verdict: WRONG ANSWER

input
`1000 ******************************...` view save

correct output
`999 999` view save

user output
`998 1` view save

Test 12

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`10000 .......*...................*...` view save

correct output
`10971 999` view save

user output
(empty)

Test 13

Group: 2

Verdict: RUNTIME ERROR

input
`10000 ...........................` view save

correct output
`9999 999` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 39, in <module>
    List_m[Location_for_nearest_coin_backward+1] = "R"
IndexError: list index out of range

Test 14

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`10000 ...............*.....` view save

correct output
`18766 5000` view save

user output
(empty)

Test 15

Group: 2

Verdict: WRONG ANSWER

input
`10000 R*****************************...` view save

correct output
`9999 9999` view save

user output
`0 0` view save

Test 16

Group: 2

Verdict: WRONG ANSWER

input
`10000 ******************************...` view save

correct output
`9999 9999` view save

user output
`9998 1` view save

Test 17

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`200000 .................................` view save

correct output
`0 0` view save

user output
(empty)

Test 18

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`200000 .................................` view save

correct output
`299934 10000` view save

user output
(empty)

Test 19

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`200000 ............*...*....` view save

correct output
`299998 100000` view save

user output
(empty)

Test 20

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`200000 ******************************...` view save

correct output
`0 0` view save

user output
(empty)

Test 21

Group: 2

Verdict: RUNTIME ERROR

input
`200000 R................................` view save

correct output
`133765 3` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 39, in <module>
    List_m[Location_for_nearest_coin_backward+1] = "R"
IndexError: list index out of range

Test 22

Group: 2

Verdict: RUNTIME ERROR

input
`200000 R................................` view save

correct output
`199982 5000` view save

user output
(empty)

Error:

Traceback (most recent call last):
  File "input/code.py", line 39, in <module>
    List_m[Location_for_nearest_coin_backward+1] = "R"
IndexError: list index out of range

Test 23

Group: 2

Verdict: WRONG ANSWER

input
`200000 R*****************************...` view save

correct output
`199999 199999` view save

user output
`0 0` view save

Test 24

Group: 2

Verdict: WRONG ANSWER

input
`200000 ******************************...` view save

correct output
`199999 199999` view save

user output
`199998 1` view save

Datatähti 2025 alku

Robotti

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

Test 22

Test 23

Test 24

Tasks

Submissions (Resident_emu)