CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:Us3rNam3
Submission time:2024-10-30 17:43:37 +0200
Language:Python3 (PyPy3)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#1ACCEPTED0.04 s1, 2details
#2ACCEPTED0.04 s1, 2details
#3ACCEPTED0.04 s1, 2details
#40.04 s1, 2details
#5ACCEPTED0.04 s1, 2details
#60.04 s1, 2details
#70.04 s1, 2details
#80.04 s1, 2details
#90.04 s1, 2details
#10ACCEPTED0.04 s1, 2details
#110.05 s1, 2details
#120.05 s2details
#130.05 s2details
#140.05 s2details
#15ACCEPTED0.06 s2details
#160.05 s2details
#17ACCEPTED0.05 s2details
#180.06 s2details
#190.38 s2details
#20--2details
#21ACCEPTED0.05 s2details
#22ACCEPTED0.05 s2details
#23--2details
#240.07 s2details

Code

n = int(input())
structure = input()

og_pos_R = structure.index('R')
left_coins = [i for i in range(og_pos_R - 1, -1, -1) if structure[i] == '*']
right_coins = [i for i in range(og_pos_R + 1, n) if structure[i] == '*']

steps = 0
coins_collected = 0
current_pos = og_pos_R

while left_coins or right_coins:
    
    left_distance = abs(current_pos - left_coins[-1]) if left_coins else float('inf')
    right_distance = abs(current_pos - right_coins[0]) if right_coins else float('inf')
    
    if left_distance < right_distance:
        current_pos = left_coins.pop()
        steps += left_distance
    elif right_distance < left_distance:
        current_pos = right_coins.pop(0)
        steps += right_distance
    elif left_distance == right_distance:
        break
    
    coins_collected += 1

print(steps, coins_collected)

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:

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

correct output
0 0

user output
17 9

Test 5

Group: 1, 2

Verdict: ACCEPTED

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

correct output
947 9

user output
947 9

Test 6

Group: 1, 2

Verdict:

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

correct output
886 9

user output
1613 9

Test 7

Group: 1, 2

Verdict:

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

correct output
1287 400

user output
1976 400

Test 8

Group: 1, 2

Verdict:

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

correct output
0 0

user output
1997 900

Test 9

Group: 1, 2

Verdict:

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

correct output
0 0

user output
1997 999

Test 10

Group: 1, 2

Verdict: ACCEPTED

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

correct output
999 999

user output
999 999

Test 11

Group: 1, 2

Verdict:

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

correct output
999 999

user output
1997 999

Test 12

Group: 2

Verdict:

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

correct output
10971 999

user output
19938 999

Test 13

Group: 2

Verdict:

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

correct output
9999 999

user output
19993 999

Test 14

Group: 2

Verdict:

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

correct output
18766 5000

user output
19995 5000

Test 15

Group: 2

Verdict: ACCEPTED

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

correct output
9999 9999

user output
9999 9999

Test 16

Group: 2

Verdict:

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

correct output
9999 9999

user output
19997 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
399864 10000

Test 19

Group: 2

Verdict:

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

correct output
299998 100000

user output
399992 100000

Test 20

Group: 2

Verdict:

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

correct output
0 0

user output
(empty)

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:

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

correct output
199999 199999

user output
(empty)

Test 24

Group: 2

Verdict:

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

correct output
199999 199999

user output
399997 199999