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WA3
andreyDagger
2156
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26 Jan 2022 16:39
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WA3
andreyDagger
26 Jan 2022 16:39
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1 1 1
Every subset must contain at least one element
Edited by author 26.01.2022 16:39
hint
Toshpulatov (MSU Tashkent)
2156
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1 Apr 2021 14:11
1
hint
Toshpulatov (MSU Tashkent)
1 Apr 2021 14:11
(a1 - a2) + (a2 - a3) + .... + (an - a1) == b1 + b2 + .... + bn == 0
-> we have some elements b < 0 and b >= 0
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