CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:Sukarth
Submission time:2024-11-02 12:54:39 +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
#40.04 s1, 2details
#50.04 s1, 2details
#6ACCEPTED0.04 s1, 2details
#70.05 s1, 2details
#80.05 s1, 2details
#90.05 s1, 2details
#100.05 s1, 2details
#11ACCEPTED0.05 s1, 2details
#120.05 s2details
#13ACCEPTED0.05 s2details
#140.09 s2details
#150.18 s2details
#16ACCEPTED0.17 s2details
#17ACCEPTED0.05 s2details
#180.20 s2details
#19--2details
#20--2details
#210.05 s2details
#220.09 s2details
#23--2details
#24--2details

Code

Num_rooms = int(input())
layout = input()
total_steps = 0
total_coins = 0
robot_pos = layout.index("R")
star_positions = [i for i, x in enumerate(layout) if x == "*"]

while star_positions:
    left_dist = robot_pos - max(star_positions[:robot_pos]) if star_positions[:robot_pos] else float('inf')
    right_dist = min(star_positions[robot_pos+1:]) - robot_pos if star_positions[robot_pos+1:] else float('inf')

    if left_dist == right_dist == float('inf'): # No more coins left
        break

    if left_dist == right_dist:
        break  # Stuck between two coins

    if left_dist < right_dist:
        total_steps += left_dist
        robot_pos -= left_dist
    else:
        total_steps += right_dist
        robot_pos += right_dist

    total_coins += 1
    star_positions.remove(robot_pos)

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:

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

correct output
12 5

user output
3 5

Test 4

Group: 1, 2

Verdict:

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

correct output
0 0

user output
9 9

Test 5

Group: 1, 2

Verdict:

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

correct output
947 9

user output
304 9

Test 6

Group: 1, 2

Verdict: ACCEPTED

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

correct output
886 9

user output
886 9

Test 7

Group: 1, 2

Verdict:

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

correct output
1287 400

user output
695 400

Test 8

Group: 1, 2

Verdict:

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

correct output
0 0

user output
314 900

Test 9

Group: 1, 2

Verdict:

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

correct output
0 0

user output
631 999

Test 10

Group: 1, 2

Verdict:

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

correct output
999 999

user output
3 999

Test 11

Group: 1, 2

Verdict: ACCEPTED

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

correct output
999 999

user output
999 999

Test 12

Group: 2

Verdict:

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

correct output
10971 999

user output
992 999

Test 13

Group: 2

Verdict: ACCEPTED

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

correct output
9999 999

user output
9999 999

Test 14

Group: 2

Verdict:

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

correct output
18766 5000

user output
1234 5000

Test 15

Group: 2

Verdict:

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

correct output
9999 9999

user output
3 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:

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

correct output
299934 10000

user output
99955 10000

Test 19

Group: 2

Verdict:

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

correct output
299998 100000

user output
(empty)

Test 20

Group: 2

Verdict:

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

correct output
0 0

user output
(empty)

Test 21

Group: 2

Verdict:

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

correct output
133765 3

user output
98986 3

Test 22

Group: 2

Verdict:

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

correct output
199982 5000

user output
96 5000

Test 23

Group: 2

Verdict:

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

correct output
199999 199999

user output
(empty)

Test 24

Group: 2

Verdict:

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

correct output
199999 199999

user output
(empty)