#2072. C++-循环for-计算S=1+2-3+4-5+6-...+100结果并打印

C++-循环for-计算S=1+2-3+4-5+6-...+100结果并打印

Background

Description

image

Format

Input

Output

Samples


52

Limitation

1s, 1024KiB for each test case.