CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:Collectseal120
Submission time:2024-10-28 15:27:24 +0200
Language:Python3 (PyPy3)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
Test results
testverdicttimegroup
#10.04 s1, 2details
#20.04 s1, 2details
#30.04 s1, 2details
#40.04 s1, 2details
#50.04 s1, 2details
#60.04 s1, 2details
#70.07 s1, 2details
#80.04 s1, 2details
#90.04 s1, 2details
#100.09 s1, 2details
#110.10 s1, 2details
#120.68 s2details
#130.74 s2details
#14--2details
#15--2details
#16--2details
#170.04 s2details
#18--2details
#19--2details
#200.04 s2details
#210.12 s2details
#22--2details
#23--2details
#24--2details

Code

import math
#import time
def replaceIndex(string, index,letter):
    stringList = list(string)
    stringList[index] = letter
    output = "".join(stringList)
    return output

def walk_right(robot_position):
    rightA = 0
    if path[robot_position+1:len(path)].find('*') == -1:
        return math.inf

    for i in path[robot_position+1:len(path)]:
        rightA += 1
        if i == "*":
            break
    return rightA

def walk_left(robot_position):
    leftA = 0
    if path[0:robot_position][::-1].find('*') == -1:
        return math.inf
    for i in path[0:robot_position][::-1]:
        leftA += 1
        if i == "*":
            break
    return leftA

room = int(input())
path = input().strip()
#rooms = 1000
#path = "*..*..**.*.**...**.*....*.*.*********...*..**.*.***......***..***..****.....*...*....**..*....**..*.....*.*...***..*.****.***.***....**.*....*.**.**....*.*..***..***..*.***.*.**.*...*..*.*.***.*...*.**..*.*.*.****..*.*.**.**..****.**.**.....*.....***.***.***.*..*...*..******...*.*.***..***..*.**.**.**.*.**.*****..**.**...*.**.**....*..*..***..*..*.*.*R.**...*..**.*.*.*..*.*....*...*.....*..***..*...*..*****.**.....*.***..*.*...*..**.*.*...**..*...*....*.*****.*...****...***.*...*.****...**.*........*..*.*.*.*.*........*..***...*..**.*...*.**.*..**.....**.*..*...*...**...*****...**...*.*.**.........*****.*.**.******...***..**.*.*******.**...*..**.**.****.*****.**..**.*...***.*...*.....*...*.*..****..***.**.*...*...*..*..**.*.*....*.*..***....*..*.***...*****...*.......*******..****.******..***.**....*.*.*.*******..*.*..**.*..****..*.*.****.***.***.**..*..*.**..*....***..***.*..*..*....*..***..*.*.*...*...****..**...*.**..*..*.*.*...**.*..*.*...*..*.****.......**..*******.*..*.**..*....." #**.*......*.R..*...*..
robot_position = path.find("R")
print(robot_position)

stepsTaken = 0
coinsCollected = 0
while 1:
    leftDist = walk_left(robot_position)
    rightDist = walk_right(robot_position)

    if leftDist == rightDist:
        break
    elif path.find('*') == -1:
        break
    elif leftDist < rightDist:
        path = replaceIndex(path,robot_position,".")
        robot_position -= leftDist
        path = replaceIndex(path,robot_position,"R")
        stepsTaken += leftDist
        coinsCollected += 1
    elif rightDist < leftDist:
        path = replaceIndex(path,robot_position,".")
        robot_position += rightDist
        path = replaceIndex(path,robot_position,"R")
        stepsTaken += rightDist
        coinsCollected += 1
    #print(path)
    #print("LeftDistance: ",leftDist,"RightDistance: ",rightDist)
    #print("stepsTaken: ",stepsTaken)
    #print("Coins:", coinsCollected)
    #time.sleep(0.1)

print(stepsTaken,coinsCollected)

Test details

Test 1

Group: 1, 2

Verdict:

input
1
R

correct output
0 0

user output
0
0 0

Test 2

Group: 1, 2

Verdict:

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

correct output
0 0

user output
3
0 0

Test 3

Group: 1, 2

Verdict:

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

correct output
12 5

user output
3
12 5

Test 4

Group: 1, 2

Verdict:

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

correct output
0 0

user output
3
0 0

Test 5

Group: 1, 2

Verdict:

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

correct output
947 9

user output
0
947 9

Test 6

Group: 1, 2

Verdict:

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

correct output
886 9

user output
999
886 9

Test 7

Group: 1, 2

Verdict:

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

correct output
1287 400

user output
700
1287 400

Test 8

Group: 1, 2

Verdict:

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

correct output
0 0

user output
314
0 0

Test 9

Group: 1, 2

Verdict:

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

correct output
0 0

user output
314
0 0

Test 10

Group: 1, 2

Verdict:

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

correct output
999 999

user output
0
999 999

Test 11

Group: 1, 2

Verdict:

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

correct output
999 999

user output
999
999 999

Test 12

Group: 2

Verdict:

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

correct output
10971 999

user output
999
10971 999

Test 13

Group: 2

Verdict:

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

correct output
9999 999

user output
9999
9999 999

Test 14

Group: 2

Verdict:

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

correct output
18766 5000

user output
(empty)

Test 15

Group: 2

Verdict:

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

correct output
9999 9999

user output
(empty)

Test 16

Group: 2

Verdict:

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

correct output
9999 9999

user output
(empty)

Test 17

Group: 2

Verdict:

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

correct output
0 0

user output
100000
0 0

Test 18

Group: 2

Verdict:

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

correct output
299934 10000

user output
(empty)

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
100000
0 0

Test 21

Group: 2

Verdict:

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

correct output
133765 3

user output
0
133765 3

Test 22

Group: 2

Verdict:

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

correct output
199982 5000

user output
(empty)

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)