T. 求 1+2+3+...+N 的值

    Type: RemoteJudge 1000ms 128MiB

求 1+2+3+...+N 的值

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题目描述

用递归的方法求 1+2+3+1+2+3+ …… +N+N 的值。

输入格式

输入 NN

输出格式

输出和。

5
15

提示

N200N\le 200

2025年CSP-J函数与递归

Not Claimed
Status
Done
Problem
29
Open Since
2025-8-7 0:00
Deadline
2025-9-7 23:59
Extension
24 hour(s)