Submission #23595667

Source Code Expand

from collections import Counter

n = int(input())
a = list(map(int, input().split()))
c = Counter(a)

res = n ** 2

for v in c.values():
    res -= v ** 2

res //= 2

print(res)

Submission Info

Submission Time
Task C - Swappable
User cubesat
Language Python (3.8.2)
Score 300
Code Size 190 Byte
Status AC
Exec Time 192 ms
Memory 44484 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 14
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, test_00.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt
Case Name Status Exec Time Memory
sample_01.txt AC 30 ms 9464 KiB
sample_02.txt AC 20 ms 9464 KiB
sample_03.txt AC 25 ms 9268 KiB
test_00.txt AC 25 ms 9328 KiB
test_01.txt AC 19 ms 9308 KiB
test_02.txt AC 37 ms 15012 KiB
test_03.txt AC 117 ms 29004 KiB
test_04.txt AC 96 ms 35636 KiB
test_05.txt AC 58 ms 21216 KiB
test_06.txt AC 41 ms 14776 KiB
test_07.txt AC 192 ms 44484 KiB
test_08.txt AC 112 ms 43440 KiB
test_09.txt AC 115 ms 42172 KiB
test_10.txt AC 117 ms 42064 KiB