I am getting TLE and I can't handle it.I know the is solved by 0-1 Knapsack.I also try this. I think i have some mistake in my code but I do not found it. Please anyone help me..... Problem :UVA-562 — Dividing coins my code :Cpp_Code
I am getting TLE and I can't handle it.I know the is solved by 0-1 Knapsack.I also try this. I think i have some mistake in my code but I do not found it. Please anyone help me..... Problem :UVA-562 — Dividing coins my code :Cpp_Code
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Consider the following test:
100
1 cent 99 times and 500 cents
Your solution will run up to O(2^n) in this case.
Add memo: for each state (i, sum) memoize the answer obtained so that you can get it in O(1) afterwards.
how can i do that???i don't found any idea.
int knap(...)
if dp[i][sum] is already calculated
return dp[i][sum];
if (i == n)
...
...
...
return dp[i][sum] = max(q1, q2)
Note that there are some states that will never be reached. So my advice is to do the following thing:
int knap(...)
if visited[i][sum] return dp[i][sum]
if (i == n)...
visited[i][sum] = true
...
return dp[i][sum] = max(q1, q2)