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# Two Paths INOI 2018

 0 I have been trying to understand the logic behind this problem for a lot of days but couldn't get any near the answer. I would appreciate some help. asked 11 Jan, 14:16 5●1 accept rate: 0%

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 0 From INOI 2018 Discussion , "For second one, The observation was that, we can take one path and calculate the total sum without a second path using dp[i][j][k] = min/max(dp[i-1][j][k], dp[i-1][j-1][k-1])+prefix_sum[i][j]. We calculate this two times, once for min and once for max and then we can use the prefix sum intuition to subtract min-dp from max-dp. It's not clear enough here, but you might get an essence." answered 11 Jan, 18:23 51●3 accept rate: 0% can you like explain it in a better way please. (12 Jan, 12:30)
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question asked: 11 Jan, 14:16

question was seen: 75 times

last updated: 12 Jan, 12:30