Submission #4891013

Source Code Expand

import collections as c,math
f=math.factorial
s=input()
n=len(s)
a=n*-~n//2+1
for i in c.Counter(s).values():
  a-=i
  if i>1:
    a-=f(i)//f(i-2)//2
print(a)

Submission Info

Submission Time
Task B - Reverse and Compare
User c_r_5
Language Python (3.4.3)
Score 500
Code Size 167 Byte
Status AC
Exec Time 1445 ms
Memory 6424 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 20 ms 3316 KB
sample_02.txt AC 20 ms 3316 KB
sample_03.txt AC 20 ms 3316 KB
subtask_1_01.txt AC 20 ms 3316 KB
subtask_1_02.txt AC 1445 ms 6304 KB
subtask_1_03.txt AC 20 ms 3316 KB
subtask_1_04.txt AC 20 ms 3316 KB
subtask_1_05.txt AC 20 ms 3316 KB
subtask_1_06.txt AC 20 ms 3316 KB
subtask_1_07.txt AC 22 ms 3316 KB
subtask_1_08.txt AC 146 ms 3880 KB
subtask_1_09.txt AC 874 ms 4836 KB
subtask_1_10.txt AC 678 ms 4412 KB
subtask_1_11.txt AC 189 ms 3880 KB
subtask_1_12.txt AC 894 ms 5096 KB
subtask_1_13.txt AC 859 ms 5312 KB
subtask_1_14.txt AC 1444 ms 6304 KB
subtask_1_15.txt AC 874 ms 4848 KB
subtask_1_16.txt AC 1443 ms 6424 KB
subtask_1_17.txt AC 146 ms 3880 KB