Problem2645--蓝桥杯省赛真题训练 - 合数求和

2645: 蓝桥杯省赛真题训练 - 合数求和

[Creator : ]
Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 8Submit Num: 11Statistics

Description

Sample Input Copy 

7

Sample Output Copy 

10

Source/Category

蓝桥杯 
Submit