CSES - Datatähti 2025 alku

Submission details
Task:	Robotti
Sender:	yo_chico1
Submission time:	2024-10-30 21:03:37 +0200
Language:	Python3 (PyPy3)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	RUNTIME ERROR	0
#2	RUNTIME ERROR	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.04 s	1, 2	details
#2	ACCEPTED	0.04 s	1, 2	details
#3	RUNTIME ERROR	0.89 s	1, 2	details
#4	ACCEPTED	0.04 s	1, 2	details
#5	RUNTIME ERROR	0.93 s	1, 2	details
#6	ACCEPTED	0.05 s	1, 2	details
#7	ACCEPTED	0.04 s	1, 2	details
#8	ACCEPTED	0.04 s	1, 2	details
#9	ACCEPTED	0.04 s	1, 2	details
#10	WRONG ANSWER	0.04 s	1, 2	details
#11	ACCEPTED	0.04 s	1, 2	details
#12	RUNTIME ERROR	0.84 s	2	details
#13	ACCEPTED	0.05 s	2	details
#14	ACCEPTED	0.09 s	2	details
#15	WRONG ANSWER	0.04 s	2	details
#16	ACCEPTED	0.11 s	2	details
#17	ACCEPTED	0.04 s	2	details
#18	TIME LIMIT EXCEEDED	--	2	details
#19	TIME LIMIT EXCEEDED	--	2	details
#20	ACCEPTED	0.04 s	2	details
#21	RUNTIME ERROR	0.94 s	2	details
#22	RUNTIME ERROR	0.97 s	2	details
#23	WRONG ANSWER	0.04 s	2	details
#24	TIME LIMIT EXCEEDED	--	2	details

Code

n = int(input())  # 20
s = input()  # '..*.R....*'
coins = 0
steps = 0
while True:
    robot_pos = s.find('R')
    left_pos = s[:robot_pos].rfind('*')
    right_pos = s.find('*', robot_pos)
    distance_to_left = robot_pos - left_pos
    distance_to_right = right_pos - robot_pos
    if distance_to_left == distance_to_right or left_pos == right_pos == -1:
        break
    elif distance_to_left < distance_to_right and distance_to_right > 0 or right_pos == -1:
        coins += 1
        steps += distance_to_left
        # print(s)
        s = s[:left_pos] + 'R' + ('.' * distance_to_left) + s[robot_pos + 1:]  # '..*.R....*' --> '..R.....*'
        # print(s)
    elif distance_to_left > distance_to_right and distance_to_left > 0 or left_pos == -1:
        coins += 1
        steps += distance_to_right
        # print(s)
        # s = s[:right_pos - 1] + '.R' + s[right_pos + 1:]  # '.*...R..*.'  --> '.*......R.'
        s = s[:robot_pos] + ('.' * distance_to_right) + 'R' + s[right_pos + 1:]
        # print(s)

print(steps, coins)

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
`1 R` view save

correct output
`0 0` view save

user output
`0 0` view save

Test 2

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

Test 3

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`12 5` view save

user output
(empty)

Test 4

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

Test 5

Group: 1, 2

Verdict: RUNTIME ERROR

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

correct output
`947 9` view save

user output
(empty)

Test 6

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`886 9` view save

user output
`886 9` view save

Test 7

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`1287 400` view save

user output
`1287 400` view save

Test 8

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

Test 9

Group: 1, 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

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: ACCEPTED

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

correct output
`999 999` view save

user output
`999 999` view save

Test 12

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`10971 999` view save

user output
(empty)

Test 13

Group: 2

Verdict: ACCEPTED

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

correct output
`9999 999` view save

user output
`9999 999` view save

Test 14

Group: 2

Verdict: ACCEPTED

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

correct output
`18766 5000` view save

user output
`18766 5000` view save

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: ACCEPTED

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

correct output
`9999 9999` view save

user output
`9999 9999` view save

Test 17

Group: 2

Verdict: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

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: ACCEPTED

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

correct output
`0 0` view save

user output
`0 0` view save

Test 21

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`133765 3` view save

user output
(empty)

Test 22

Group: 2

Verdict: RUNTIME ERROR

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

correct output
`199982 5000` view save

user output
(empty)

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: TIME LIMIT EXCEEDED

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

correct output
`199999 199999` view save

user output
(empty)

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 (yo_chico1)