Hi any ways to check whether an array (1e5 items at most) has an arithmetic progression as a subsequence and output their positions?
for example 5
3 4 2 1 5
output 1 3 4
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Checking whether an array has an arithmetic sequence ?
Hi any ways to check whether an array (1e5 items at most) has an arithmetic progression as a subsequence and output their positions?
for example 5
3 4 2 1 5
output 1 3 4
Rev. | Lang. | By | When | Δ | Comment | |
---|---|---|---|---|---|---|
en2 | 420yoloswag69 | 2015-09-05 20:49:05 | 2 | Tiny change: 'ample\n5\n3 4 2 1 ' -> 'ample\n5\n\n3 4 2 1 ' | ||
en1 | 420yoloswag69 | 2015-09-05 20:48:44 | 234 | Initial revision (published) |
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