(cache)Submission #66342558 - AtCoder Beginner Contest 408

Contest Duration: 2025-05-31(Sat) 21:00 - 2025-05-31(Sat) 22:40 (local time) (100 minutes) Back to Home

Submission #66342558

Source Code Expand

Copy

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
T = int(input())
for _ in range(T):
    n = int(input())
    s = input()
    total_ones = s.count('1')
    max_ending_here = 0
    max_so_far = 0
    for ch in s:
        if ch == '1':
            w = 1
        else:
            w = -1
        max_ending_here = max(w, max_ending_here + w)
        max_so_far = max(max_so_far, max_ending_here)
    best_gain = max_so_far
    if best_gain < 0:
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

T = int(input())
for _ in range(T):
    n = int(input())
    s = input()

    total_ones = s.count('1')

    max_ending_here = 0
    max_so_far = 0

    for ch in s:
        if ch == '1':
            w = 1
        else:
            w = -1

        max_ending_here = max(w, max_ending_here + w)
        max_so_far = max(max_so_far, max_ending_here)

    best_gain = max_so_far
    if best_gain < 0:
        best_gain = 0

    result = total_ones - best_gain
    print(result)

Submission Info

Submission Time	2025-05-31 21:50:17
Task	D - Flip to Gather
User	kangping
Language	Python (CPython 3.11.4)
Score	400
Code Size	498 Byte
Status	AC
Exec Time	150 ms
Memory	9284 KiB

Judge Result

Set Name

Sample

All

Score / Max Score

0 / 0

400 / 400

Status

× 2

× 30

Set Name	Test Cases
Sample	00_sample_00.txt, 00_sample_01.txt
All	00_sample_00.txt, 00_sample_01.txt, 01_test_00.txt, 01_test_01.txt, 01_test_02.txt, 01_test_03.txt, 01_test_04.txt, 01_test_05.txt, 01_test_06.txt, 01_test_07.txt, 01_test_08.txt, 01_test_09.txt, 01_test_10.txt, 01_test_11.txt, 01_test_12.txt, 01_test_13.txt, 01_test_14.txt, 01_test_15.txt, 01_test_16.txt, 01_test_17.txt, 01_test_18.txt, 01_test_19.txt, 01_test_20.txt, 01_test_21.txt, 01_test_22.txt, 01_test_23.txt, 01_test_24.txt, 01_test_25.txt, 01_test_26.txt, 01_test_27.txt

Case Name	Status	Exec Time	Memory
00_sample_00.txt	AC	10 ms	8520 KiB
00_sample_01.txt	AC	10 ms	8512 KiB
01_test_00.txt	AC	150 ms	8428 KiB
01_test_01.txt	AC	141 ms	8528 KiB
01_test_02.txt	AC	141 ms	8464 KiB
01_test_03.txt	AC	142 ms	8536 KiB
01_test_04.txt	AC	140 ms	8576 KiB
01_test_05.txt	AC	142 ms	8504 KiB
01_test_06.txt	AC	135 ms	8428 KiB
01_test_07.txt	AC	135 ms	8428 KiB
01_test_08.txt	AC	133 ms	8476 KiB
01_test_09.txt	AC	114 ms	8536 KiB
01_test_10.txt	AC	106 ms	8416 KiB
01_test_11.txt	AC	98 ms	8520 KiB
01_test_12.txt	AC	105 ms	8536 KiB
01_test_13.txt	AC	92 ms	8456 KiB
01_test_14.txt	AC	92 ms	8596 KiB
01_test_15.txt	AC	87 ms	8536 KiB
01_test_16.txt	AC	92 ms	8484 KiB
01_test_17.txt	AC	94 ms	8912 KiB
01_test_18.txt	AC	95 ms	8480 KiB
01_test_19.txt	AC	90 ms	9284 KiB
01_test_20.txt	AC	90 ms	8960 KiB
01_test_21.txt	AC	102 ms	9112 KiB
01_test_22.txt	AC	93 ms	9216 KiB
01_test_23.txt	AC	93 ms	9132 KiB
01_test_24.txt	AC	94 ms	9232 KiB
01_test_25.txt	AC	96 ms	9284 KiB
01_test_26.txt	AC	85 ms	9208 KiB
01_test_27.txt	AC	85 ms	9264 KiB