#17901. 打印梯形1
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ID: 17901
Type: Default
1000ms
128MiB
Tried: 0
Accepted: 0
Difficulty: (None)
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打印梯形1
说明
输入正整数n和m，打印由n行m列的*号组成的梯形。
n,m<=20
3 5*****
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