Submission #4024782


Source Code Expand

Copy
from collections import defaultdict
A = input()
Alphabet = defaultdict(int)

for i in range(len(A)):
    Alphabet[A[i]] += 1
Total = (len(A) - 1) * len(A) // 2 + 1
for key in Alphabet:
    if Alphabet[key] > 1:
        double = (Alphabet[key] - 1) * Alphabet[key] // 2
        Total -= double
print(Total)

Submission Info

Submission Time
Task B - Reverse and Compare
User earlgrey_yh
Language Python3 (3.4.3)
Score 500
Code Size 316 Byte
Status
Exec Time 58 ms
Memory 3872 KB

Judge Result

Set Name Score / Max Score Test Cases
Sample 0 / 0 sample_01.txt, sample_02.txt, sample_03.txt
All 500 / 500 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 21 ms 3316 KB
sample_02.txt 21 ms 3316 KB
sample_03.txt 21 ms 3316 KB
subtask_1_01.txt 21 ms 3316 KB
subtask_1_02.txt 52 ms 3872 KB
subtask_1_03.txt 21 ms 3316 KB
subtask_1_04.txt 21 ms 3316 KB
subtask_1_05.txt 21 ms 3316 KB
subtask_1_06.txt 21 ms 3316 KB
subtask_1_07.txt 24 ms 3316 KB
subtask_1_08.txt 56 ms 3868 KB
subtask_1_09.txt 55 ms 3744 KB
subtask_1_10.txt 52 ms 3744 KB
subtask_1_11.txt 51 ms 3868 KB
subtask_1_12.txt 52 ms 3740 KB
subtask_1_13.txt 54 ms 3868 KB
subtask_1_14.txt 51 ms 3872 KB
subtask_1_15.txt 55 ms 3872 KB
subtask_1_16.txt 58 ms 3872 KB
subtask_1_17.txt 54 ms 3872 KB