CSES - Aalto Competitive Programming 2026 - wk2 - Wed - Results

Submission details
Task:	Binge watching
Sender:	aalto26bw_002
Submission time:	2026-09-09 16:54:54 +0300
Language:	Python3 (PyPy3)
Status:	READY
Result:	WRONG ANSWER

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
#7	WRONG ANSWER	0.04 s	details
#8	WRONG ANSWER	0.04 s	details
#9	WRONG ANSWER	0.04 s	details

Code

def max_movies(movies):
    #ending time
    movies.sort(key=lambda x: x[1])
    
    count = 0
    last_end_time = -1
    
    for show in movies:
        start_time, end_time = show
        if start_time >= last_end_time:
            count += 1
            last_end_time = end_time
    
    return count

Test details

Test 1

Verdict: WRONG ANSWER

input
`10 6 7 4 5 8 9 2 3 ...` view save

correct output
`10` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 2

Verdict: WRONG ANSWER

input
`10 1 1000 1 1000 1 1000 1 1000 ...` view save

correct output
`1` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 3

Verdict: WRONG ANSWER

input
`10 404 882 690 974 201 255 800 933 ...` view save

correct output
`4` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 4

Verdict: WRONG ANSWER

input
`200000 177494 177495 157029 157030 6030 6031 15209 15210 ...` view save

correct output
`200000` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 5

Verdict: WRONG ANSWER

input
`200000 1 1000000000 1 1000000000 1 1000000000 1 1000000000 ...` view save

correct output
`1` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 6

Verdict: WRONG ANSWER

input
`200000 82334756 323555178 958182284 981100325 649818003 678160906 801994655 889397498 ...` view save

correct output
`725` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 7

Verdict: WRONG ANSWER

input
`3 1 1000 2 3 5 6` view save

correct output
`2` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 8

Verdict: WRONG ANSWER

input
`3 3 4 5 6 7 8` view save

correct output
`3` view save

user output
(empty)

Feedback: Output is shorter than expected

Test 9

Verdict: WRONG ANSWER

input
`2 1 2 3 4` view save

correct output
`2` view save

user output
(empty)

Feedback: Output is shorter than expected