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例子
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方形数组开始:
1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, ... 第n行=0
1, 2, 3, 4, 5, 5, 0, 0, 0, 0, 0, ... 行n=1
1, 3, 6, 10, 15, 20, 20, 0, 0, 0, 0, ... 第n行=第2行
0, 3, 9, 19, 34, 54, 74, 74, 0, 0, 0, ... 行n=3
0, 0, 9, 28, 62, 116, 190, 264, 264, 0, 0, ... 行n=4
0, 0, 0, 28, 90, 206, 396, 660, 924, 924, 0, ... 行n=5
...
数组,按行读取,省略0:
1, 1, 1, 1, 1
1, 2, 3, 4, 5, 5
1, 3, 6, 10, 15, 20, 20
3, 9, 19, 34, 54, 74, 74
9, 28, 62, 116, 190, 264, 264
28, 90, 206, 396, 660, 924, 924
90, 296, 692, 1352, 2276, 3200, 3200
...
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