Submission #5995484

Source Code Expand

a = input()
cnt = [0 for _ in range(26)]
for x in a:
    cnt[ord(x) - ord('a')] += 1
ans = len(a) * (len(a)-1) // 2 + 1
for c in cnt:
    ans -= c * (c-1) // 2
print(ans)

Submission Info

Submission Time
Task B - Reverse and Compare
User Ricky_pon
Language Python (3.4.3)
Score 500
Code Size 177 Byte
Status AC
Exec Time 83 ms
Memory 3500 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 23
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt
Case Name Status Exec Time Memory
sample_01.txt AC 17 ms 2940 KB
sample_02.txt AC 17 ms 2940 KB
sample_03.txt AC 17 ms 2940 KB
subtask_1_01.txt AC 17 ms 3060 KB
subtask_1_02.txt AC 70 ms 3496 KB
subtask_1_03.txt AC 17 ms 2940 KB
subtask_1_04.txt AC 17 ms 3060 KB
subtask_1_05.txt AC 17 ms 2940 KB
subtask_1_06.txt AC 17 ms 2940 KB
subtask_1_07.txt AC 21 ms 3060 KB
subtask_1_08.txt AC 64 ms 3496 KB
subtask_1_09.txt AC 73 ms 3500 KB
subtask_1_10.txt AC 75 ms 3500 KB
subtask_1_11.txt AC 83 ms 3496 KB
subtask_1_12.txt AC 80 ms 3500 KB
subtask_1_13.txt AC 77 ms 3496 KB
subtask_1_14.txt AC 65 ms 3500 KB
subtask_1_15.txt AC 68 ms 3500 KB
subtask_1_16.txt AC 69 ms 3500 KB
subtask_1_17.txt AC 67 ms 3500 KB