预习书本第108到111页,体会for循环的运行原理,试着完成这5道题目。 
题目很少,独立完成。 
        
| RunID | User | Nick Name | Problem ID | Result | Memory | Time | Language | Code Length | Submit Time | 
| 45091 | shimijie | Accepted | 2080 KiB  | 0 ms  | C++ | 237 bytes | 2020-08-29 23:49:43 | ||
| 44972 | shimijie | Wrong Answer | 2080 KiB  | 0 ms  | C++ | 133 bytes | 2020-08-27 22:57:07 | ||
| 44971 | shimijie | Accepted | 2332 KiB  | 0 ms  | C++ | 126 bytes | 2020-08-27 22:47:40 | ||
| 44133 | shimijie | Accepted | 2084 KiB  | 0 ms  | C++ | 234 bytes | 2020-08-15 13:01:33 | ||
| 44130 | shimijie | Accepted | 2080 KiB  | 0 ms  | C++ | 273 bytes | 2020-08-15 12:53:08 | ||
| 44128 | shimijie | Accepted | 1152 KiB  | 0 ms  | C++ | 207 bytes | 2020-08-15 12:27:50 |