CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:Sukarth
Submission time:2024-11-02 15:21:47 +0200
Language:Python3 (PyPy3)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED30
#2ACCEPTED70
Test results
testverdicttimegroup
#1ACCEPTED0.04 s1, 2details
#2ACCEPTED0.04 s1, 2details
#3ACCEPTED0.04 s1, 2details
#4ACCEPTED0.04 s1, 2details
#5ACCEPTED0.04 s1, 2details
#6ACCEPTED0.04 s1, 2details
#7ACCEPTED0.04 s1, 2details
#8ACCEPTED0.04 s1, 2details
#9ACCEPTED0.04 s1, 2details
#10ACCEPTED0.04 s1, 2details
#11ACCEPTED0.04 s1, 2details
#12ACCEPTED0.05 s2details
#13ACCEPTED0.04 s2details
#14ACCEPTED0.06 s2details
#15ACCEPTED0.05 s2details
#16ACCEPTED0.05 s2details
#17ACCEPTED0.05 s2details
#18ACCEPTED0.05 s2details
#19ACCEPTED0.06 s2details
#20ACCEPTED0.04 s2details
#21ACCEPTED0.05 s2details
#22ACCEPTED0.05 s2details
#23ACCEPTED0.05 s2details
#24ACCEPTED0.05 s2details

Code

Num_rooms = int(input())
layout = input()

robot_pos = layout.index("R")
total_steps = 0
total_coins = 0

left_star = right_star = robot_pos

while True:
    # Find the next star on the left
    while left_star >= 0 and layout[left_star] != '*':
        left_star -= 1
    
    # Find the next star on the right
    while right_star < Num_rooms and layout[right_star] != '*':
        right_star += 1
    
    # If no more stars, break
    if left_star < 0 and right_star >= Num_rooms:
        break
    
    # If stars on both sides at equal distance, break
    if left_star >= 0 and right_star < Num_rooms and (robot_pos - left_star) == (right_star - robot_pos):
        break
    
    # Move to the closer star
    if left_star >= 0 and (right_star >= Num_rooms or (robot_pos - left_star) < (right_star - robot_pos)):
        total_steps += robot_pos - left_star
        robot_pos = left_star
        left_star -= 1
    else:
        total_steps += right_star - robot_pos
        robot_pos = right_star
        right_star += 1
    
    total_coins += 1

print(total_steps, total_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: ACCEPTED

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

correct output
12 5

user output
12 5

Test 4

Group: 1, 2

Verdict: ACCEPTED

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

correct output
0 0

user output
0 0

Test 5

Group: 1, 2

Verdict: ACCEPTED

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

correct output
947 9

user output
947 9

Test 6

Group: 1, 2

Verdict: ACCEPTED

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

correct output
886 9

user output
886 9

Test 7

Group: 1, 2

Verdict: ACCEPTED

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

correct output
1287 400

user output
1287 400

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: ACCEPTED

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

correct output
999 999

user output
999 999

Test 11

Group: 1, 2

Verdict: ACCEPTED

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

correct output
999 999

user output
999 999

Test 12

Group: 2

Verdict: ACCEPTED

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

correct output
10971 999

user output
10971 999

Test 13

Group: 2

Verdict: ACCEPTED

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

correct output
9999 999

user output
9999 999

Test 14

Group: 2

Verdict: ACCEPTED

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

correct output
18766 5000

user output
18766 5000

Test 15

Group: 2

Verdict: ACCEPTED

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

correct output
9999 9999

user output
9999 9999

Test 16

Group: 2

Verdict: ACCEPTED

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

correct output
9999 9999

user output
9999 9999

Test 17

Group: 2

Verdict: ACCEPTED

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

correct output
0 0

user output
0 0

Test 18

Group: 2

Verdict: ACCEPTED

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

correct output
299934 10000

user output
299934 10000

Test 19

Group: 2

Verdict: ACCEPTED

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

correct output
299998 100000

user output
299998 100000

Test 20

Group: 2

Verdict: ACCEPTED

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

correct output
0 0

user output
0 0

Test 21

Group: 2

Verdict: ACCEPTED

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

correct output
133765 3

user output
133765 3

Test 22

Group: 2

Verdict: ACCEPTED

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

correct output
199982 5000

user output
199982 5000

Test 23

Group: 2

Verdict: ACCEPTED

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

correct output
199999 199999

user output
199999 199999

Test 24

Group: 2

Verdict: ACCEPTED

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

correct output
199999 199999

user output
199999 199999