Submission #3780352


Source Code Expand

#!/usr/bin/env python3
N = int(input())
S = input()
ans = 'b'
for i in range(1, (N - 1) // 2 + 1):
    if i % 3 == 0:
        ans = 'b' + ans + 'b'
    if i % 3 == 1:
        ans = 'a' + ans + 'c'
    if i % 3 == 2:
        ans = 'c' + ans + 'a'
print([-1, (N - 1) // 2][ans == S])

Submission Info

Submission Time
Task B - 手芸王
User hrbt
Language Python (3.4.3)
Score 100
Code Size 282 Byte
Status AC
Exec Time 18 ms
Memory 2940 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 4
AC × 29
Set Name Test Cases
Sample subtask0-sample01.txt, subtask0-sample02.txt, subtask0-sample03.txt, subtask0-sample04.txt
All subtask0-sample01.txt, subtask0-sample02.txt, subtask0-sample03.txt, subtask0-sample04.txt, subtask1-01.txt, subtask1-02.txt, subtask1-03.txt, subtask1-04.txt, subtask1-05.txt, subtask1-06.txt, subtask1-07.txt, subtask1-08.txt, subtask1-09.txt, subtask1-10.txt, subtask1-11.txt, subtask1-12.txt, subtask1-13.txt, subtask1-14.txt, subtask1-15.txt, subtask1-16.txt, subtask1-17.txt, subtask1-18.txt, subtask1-19.txt, subtask1-20.txt, subtask1-21.txt, subtask1-22.txt, subtask1-23.txt, subtask1-24.txt, subtask1-25.txt
Case Name Status Exec Time Memory
subtask0-sample01.txt AC 18 ms 2940 KB
subtask0-sample02.txt AC 17 ms 2940 KB
subtask0-sample03.txt AC 17 ms 2940 KB
subtask0-sample04.txt AC 17 ms 2940 KB
subtask1-01.txt AC 17 ms 2940 KB
subtask1-02.txt AC 17 ms 2940 KB
subtask1-03.txt AC 17 ms 2940 KB
subtask1-04.txt AC 18 ms 2940 KB
subtask1-05.txt AC 17 ms 2940 KB
subtask1-06.txt AC 18 ms 2940 KB
subtask1-07.txt AC 18 ms 2940 KB
subtask1-08.txt AC 18 ms 2940 KB
subtask1-09.txt AC 18 ms 2940 KB
subtask1-10.txt AC 18 ms 2940 KB
subtask1-11.txt AC 17 ms 2940 KB
subtask1-12.txt AC 18 ms 2940 KB
subtask1-13.txt AC 18 ms 2940 KB
subtask1-14.txt AC 17 ms 2940 KB
subtask1-15.txt AC 17 ms 2940 KB
subtask1-16.txt AC 17 ms 2940 KB
subtask1-17.txt AC 17 ms 2940 KB
subtask1-18.txt AC 18 ms 2940 KB
subtask1-19.txt AC 18 ms 2940 KB
subtask1-20.txt AC 18 ms 2940 KB
subtask1-21.txt AC 17 ms 2940 KB
subtask1-22.txt AC 18 ms 2940 KB
subtask1-23.txt AC 18 ms 2940 KB
subtask1-24.txt AC 17 ms 2940 KB
subtask1-25.txt AC 18 ms 2940 KB