CSES - Datatähti 2026 loppu

Submission details
Task:	Robotti
Sender:	rene
Submission time:	2026-01-17 13:45:10 +0200
Language:	Python3 (PyPy3)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0

Test results
test	verdict	time
#1	WRONG ANSWER	0.04 s	details
#2	WRONG ANSWER	0.04 s	details
#3	WRONG ANSWER	0.04 s	details
#4	WRONG ANSWER	0.04 s	details
#5	WRONG ANSWER	0.04 s	details
#6	WRONG ANSWER	0.04 s	details

Code

import time
square = int(input())
ruudukko = []

robotti_x = 0
robotti_y = -1

def check_if_robot_outside(n, x, y):
    if x > n-1:
        return False
    elif x < 0:
        return False
    elif y > n-1:
        return False
    elif y < 0:
        return False
    else:
        return True

for i in range(square):
    rivi = input()
    riviarray = []
    for i in range(len(rivi)):
        riviarray.append(rivi[i])
    ruudukko.append(riviarray)

# print(square)
# print(ruudukko)

move = True
next_move_left = False
next_move_right = False
next_move_up = False
next_move_down = False
moves = 0
skip = False
robotti_y = -1

# print(robotti_x, robotti_y)

while move == True:
    if next_move_left:
        next_move_left = False
        robotti_x = robotti_x - 1
        move = check_if_robot_outside(square, robotti_x, robotti_y)
        moves = moves + 1
        
        if move == True:
            inner = ruudukko[robotti_y]
            inspect = inner[robotti_x]

            if inspect == "/":
                next_move_down = True
                ruudukko[robotti_y][robotti_x] = "\\"
                skip = True
            elif inspect == "\\":
                next_move_up = True
                ruudukko[robotti_y][robotti_y] = "/"
                skip = True

            skip = False
            # print(robotti_x, robotti_y)

    elif next_move_right:
        next_move_right = False
        robotti_x = robotti_x + 1
        move = check_if_robot_outside(square, robotti_x, robotti_y)
        moves = moves + 1

        if move == True:
            inner = ruudukko[robotti_y]
            inspect = inner[robotti_x]

            if inspect == "/":
                next_move_up = True
                ruudukko[robotti_y][robotti_x] = "\\"
                skip = True
            elif inspect == "\\":
                next_move_down = True
                ruudukko[robotti_y][robotti_x] = "/"
                skip = True

            skip = False
            # print(robotti_x, robotti_y)

    elif next_move_down == True:
        next_move_down = False
        robotti_y = robotti_y - 1
        move = check_if_robot_outside(square, robotti_x, robotti_y)
        moves = moves + 1

        if move == True:
            inner = ruudukko[robotti_y]
            inspect = inner[robotti_x]

            if inspect == "/":
                next_move_left = True
                ruudukko[robotti_y][robotti_x] = "\\"
                skip = True
            elif inspect == "\\":
                next_move_right = True
                ruudukko[robotti_y][robotti_x] = "/"
                skip = True

            skip = False
            # print(robotti_x, robotti_y)

    elif next_move_up == True:
        next_move_up = False
        robotti_y = robotti_y + 1
        move = check_if_robot_outside(square, robotti_x, robotti_y)
        moves = moves + 1
        
        if move == True:
            inner = ruudukko[robotti_y]
            inspect = inner[robotti_x]

            if inspect == "/":
                next_move_right = True
                ruudukko[robotti_y][robotti_x] = "\\"
                skip = True
            elif inspect == "\\":
                next_move_left = True
                ruudukko[robotti_y][robotti_x] = "/"
                skip = True

            skip = False
            # print(robotti_x, robotti_y)

    else:
        robotti_y = robotti_y + 1
        move = check_if_robot_outside(square, robotti_x, robotti_y)
        moves = moves + 1

        if move == True:
            inner = ruudukko[robotti_y]
            inspect = inner[robotti_x]

            if inspect == "/":
                next_move_left = True
                ruudukko[robotti_y][robotti_x] = "\\"
                skip = True
            elif inspect == "\\":
                next_move_right = True
                ruudukko[robotti_y][robotti_x] = "/"
                skip = True

            skip = False
            # print(robotti_x, robotti_y)

print(moves)

Test details

Test 1 (public)

Verdict: WRONG ANSWER

input
`3 ./\ \./ \/.` view save

correct output
`13` view save

user output
`6` view save

Feedback: Incorrect character on line 1 col 1: expected "13", got "6"

Test 2

Verdict: WRONG ANSWER

input
`1 .` view save

correct output
`1` view save

user output
`2` view save

Feedback: Incorrect character on line 1 col 1: expected "1", got "2"

Test 3

Verdict: WRONG ANSWER

input
`5 ./\/\ ..... ..... ..... ...` view save

correct output
`25` view save

user output
`7` view save

Feedback: Incorrect character on line 1 col 1: expected "25", got "7"

Test 4

Verdict: WRONG ANSWER

input
`5 \\/\\ /\/\/ \\/\\ /\/\/ ...` view save

correct output
`37` view save

user output
`3` view save

Feedback: Incorrect character on line 1 col 2: expected "37", got "3"

Test 5

Verdict: WRONG ANSWER

input
`20 \\/\/\/\\./\\.\/\/\. /\\\\\\/\\\\\\\\\\\. \\\\\\\\\\\\\\\\\\\\ /\\\\\\\\\\\\\.\\\\\ ...` view save

correct output
`2519` view save

user output
`3` view save

Feedback: Incorrect character on line 1 col 1: expected "2519", got "3"

Test 6

Verdict: WRONG ANSWER

input
`20 \\.................. .\\..............\\. ..\\............\\.. ...\\..........\\... ...` view save

correct output
`917489` view save

user output
`3` view save

Feedback: Incorrect character on line 1 col 1: expected "917489", got "3"

Datatähti 2026 loppu

Robotti

Code

Test details

Test 1 (public)

Test 2

Test 3

Test 4

Test 5

Test 6

Tasks

Submissions (rene)