CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:osmukka
Submission time:2024-11-04 09:46:05 +0200
Language:Python3 (PyPy3)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#1ACCEPTED0.04 s1, 2details
#2ACCEPTED0.04 s1, 2details
#30.04 s1, 2details
#4ACCEPTED0.04 s1, 2details
#50.04 s1, 2details
#60.07 s1, 2details
#70.07 s1, 2details
#8ACCEPTED0.04 s1, 2details
#9ACCEPTED0.04 s1, 2details
#100.04 s1, 2details
#110.06 s1, 2details
#120.04 s2details
#130.07 s2details
#140.08 s2details
#150.04 s2details
#160.07 s2details
#17ACCEPTED0.05 s2details
#180.06 s2details
#190.38 s2details
#20ACCEPTED0.06 s2details
#210.05 s2details
#220.05 s2details
#230.06 s2details
#240.08 s2details

Code


amount = int(input())
rooms = input()
coin_rooms = []
robot_index = None
steps = 0
coins = 0

# Parse input.
for i in range(amount):
    if rooms[i] == '*':
        coin_rooms.append(i)
    elif rooms[i] == 'R':
        coin_rooms.append(i)
        robot_index = len(coin_rooms)-1

while True:
    if robot_index == 0 or robot_index == amount:
        break

    d_left = coin_rooms[robot_index] - coin_rooms[robot_index - 1]
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]

    if d_left < d_right:
        steps += d_left
        coins += 1
        del coin_rooms[robot_index]
        robot_index -= 1

    elif d_right < d_left:
        steps += d_right
        coins += 1
        del coin_rooms[robot_index]

    elif d_left == d_right:
        break
    

print(steps, coins)

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
1
R

correct output
0 0

user output
0 0

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
10
...R......

correct output
0 0

user output
0 0

Test 3

Group: 1, 2

Verdict:

input
10
**.R...***

correct output
12 5

user output
3 2

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
10
***R******

correct output
0 0

user output
0 0

Test 5

Group: 1, 2

Verdict:

input
1000
R................................

correct output
947 9

user output
0 0

Test 6

Group: 1, 2

Verdict:

input
1000
.................................

correct output
886 9

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range

Test 7

Group: 1, 2

Verdict:

input
1000
.....*..*....**..**..*......*....

correct output
1287 400

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
1000
************.*****************...

correct output
0 0

user output
0 0

Test 9

Group: 1, 2

Verdict: ACCEPTED

input
1000
******************************...

correct output
0 0

user output
0 0

Test 10

Group: 1, 2

Verdict:

input
1000
R*****************************...

correct output
999 999

user output
0 0

Test 11

Group: 1, 2

Verdict:

input
1000
******************************...

correct output
999 999

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range

Test 12

Group: 2

Verdict:

input
10000
.......**........*...........*...

correct output
10971 999

user output
998 99

Test 13

Group: 2

Verdict:

input
10000
*..*....*......*.....*..*........

correct output
9999 999

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range

Test 14

Group: 2

Verdict:

input
10000
*.*.*...**.*...*....**.**.**.....

correct output
18766 5000

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range

Test 15

Group: 2

Verdict:

input
10000
R*****************************...

correct output
9999 9999

user output
0 0

Test 16

Group: 2

Verdict:

input
10000
******************************...

correct output
9999 9999

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range

Test 17

Group: 2

Verdict: ACCEPTED

input
200000
.................................

correct output
0 0

user output
0 0

Test 18

Group: 2

Verdict:

input
200000
.................................

correct output
299934 10000

user output
99985 5054

Test 19

Group: 2

Verdict:

input
200000
**.***....**..**.....***.*..*....

correct output
299998 100000

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range

Test 20

Group: 2

Verdict: ACCEPTED

input
200000
******************************...

correct output
0 0

user output
0 0

Test 21

Group: 2

Verdict:

input
200000
R................................

correct output
133765 3

user output
0 0

Test 22

Group: 2

Verdict:

input
200000
R................................

correct output
199982 5000

user output
0 0

Test 23

Group: 2

Verdict:

input
200000
R*****************************...

correct output
199999 199999

user output
0 0

Test 24

Group: 2

Verdict:

input
200000
******************************...

correct output
199999 199999

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    d_right = coin_rooms[robot_index+1] - coin_rooms[robot_index]
IndexError: list index out of range