Created
December 16, 2011 00:10
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| >>>> a = [[1]] * 10 | |
| >>>> a | |
| [[1], [1], [1], [1], [1], [1], [1], [1], [1], [1]] | |
| >>>> a[0][0] = 20 | |
| >>>> a | |
| [[20], [20], [20], [20], [20], [20], [20], [20], [20], [20]] | |
| >>>> |
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