Problem1115--【入门】打印字母塔1115: 【入门】打印字母塔
Time Limit: 1 Sec Memory Limit: 16 MB
Submit: 3 Solved: 3
[Submit] [Status] [Web Board] [Creator:]Description
输入行数N,打印图形.
Input
输入只有一行，包括1个整数。(N<=15)
Output
输出有N行.
Sample Input
3
Sample Output
A
BAB
CBABC
Source/Category
[Submit] [Status]