Home
Problem Set
Training
Contest
Homework
Discussion
Record
Ranking
Login
Language
English
한국어
简体中文
正體中文
2 solutions
0
DH-LZR
LV 8
@
2024-5-19 11:48:19
a=int(input()) print(int(a*(a+1)/2))
View all 2 solutions
金币数量
View Problem
Login to Submit
Discussions
Solutions
Files
Statistics
Information
ID
669
Time
1000ms
Memory
256MiB
Difficulty
3
Tags
2023年8月STEMA测评
# Submissions
47
Accepted
17
Uploaded By
jike1994
CLOSE
SIGN IN
Using your lizikid universal account
Username
Password
Remember me
Forgot password or username?