(cache)Submission #65642686 - AtCoder Beginner Contest 405

Contest Duration: 2025-05-10(Sat) 21:00 - 2025-05-10(Sat) 22:40 (local time) (100 minutes) Back to Home

Submission #65642686

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def li():return list(map(int,input().split()))
n=int(input())
a=li()
ans=0
s=sum(a)
for ai in a:
    ans+=ai*(s-ai)
ans//=2
print(ans)
 
 
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def li():return list(map(int,input().split()))

n=int(input())
a=li()

ans=0
s=sum(a)
for ai in a:
    ans+=ai*(s-ai)
ans//=2
print(ans)

Submission Info

Submission Time	2025-05-10 21:07:00
Task	C - Sum of Product
User	juten
Language	Python (CPython 3.11.4)
Score	300
Code Size	146 Byte
Status	AC
Exec Time	97 ms
Memory	43348 KB

Judge Result

Set Name

Sample

All

Score / Max Score

0 / 0

300 / 300

Status

× 3

× 22

Set Name	Test Cases
Sample	00_sample_00.txt, 00_sample_01.txt, 00_sample_02.txt
All	00_sample_00.txt, 00_sample_01.txt, 00_sample_02.txt, 01_random_00.txt, 01_random_01.txt, 01_random_02.txt, 01_random_03.txt, 01_random_04.txt, 01_random_05.txt, 01_random_06.txt, 01_random_07.txt, 01_random_08.txt, 01_random_09.txt, 01_random_10.txt, 01_random_11.txt, 01_random_12.txt, 01_random_13.txt, 01_random_14.txt, 02_handmade_00.txt, 02_handmade_01.txt, 02_handmade_02.txt, 02_handmade_03.txt

Case Name	Status	Exec Time	Memory
00_sample_00.txt	AC	10 ms	8500 KB
00_sample_01.txt	AC	9 ms	8560 KB
00_sample_02.txt	AC	10 ms	8548 KB
01_random_00.txt	AC	40 ms	22800 KB
01_random_01.txt	AC	68 ms	33568 KB
01_random_02.txt	AC	86 ms	41060 KB
01_random_03.txt	AC	44 ms	25100 KB
01_random_04.txt	AC	70 ms	35648 KB
01_random_05.txt	AC	90 ms	43064 KB
01_random_06.txt	AC	92 ms	43120 KB
01_random_07.txt	AC	89 ms	43132 KB
01_random_08.txt	AC	89 ms	43056 KB
01_random_09.txt	AC	92 ms	43128 KB
01_random_10.txt	AC	91 ms	43216 KB
01_random_11.txt	AC	89 ms	43048 KB
01_random_12.txt	AC	97 ms	43232 KB
01_random_13.txt	AC	87 ms	43040 KB
01_random_14.txt	AC	89 ms	43116 KB
02_handmade_00.txt	AC	10 ms	8560 KB
02_handmade_01.txt	AC	10 ms	8468 KB
02_handmade_02.txt	AC	64 ms	14168 KB
02_handmade_03.txt	AC	89 ms	43348 KB