asim2005's blog

Please help me!
By asim2005, 4 years ago, In English

https://codeforces.me/problemset/problem/1250/F

Can anybody please help me in solving this problem?

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4 years ago, # |
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loop over i: 1 to n. if n is divisible by i, then take best: (i + n / i) and minimize it. then the answer is best * 2. code:

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    4 years ago, # ^ |
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    Thanks for the solution. But I could not understand the approach. What is the use of best variable in this code? And why should I minimize it? Can you please explain these to me? It would be a great help of me.

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      4 years ago, # ^ |
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      best variable is used to store the minimum value of sum of any 2 non-parallel sides of the rectangle over all possible pairs of such sides.

      Doubling the value of the variable will result in the perimeter of the rectangle.

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        4 years ago, # ^ |
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        OK, I understood. But why the value of the best variable is 1000000000 ? Is there any special reason behind it?

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          4 years ago, # ^ |
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          That's because, no such sum can be greater that this value according to the constraints.

          You can use INT_MAX for int and LLONG_MAX for long long.

          These respective MAXs store the maximum value the can fit in the respective datatypes.

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