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EIUFF - Financial Freedom |
Mr. Tan aims to earn X VND before retiring. Upon retirement, he plans to put the entire X VND into a safe investment with a stable monthly return of r%. At the end of the first month, he plans to withdraw Y VND for expenses. Due to the impact of inflation with an monthly rate of f%, in the following months, he will withdraw an amount of money that ensures a standard of living equivalent to the Y VND from the first month of retirement. Mr. Tan wants to ensure that he has enough money to spend for at least N months (i.e. Mr. Tan withdraws N-1 times).
Input
The only line contain 2 real numbers r and f, and 2 integers Y and N
Output
Calculate X (rounded to 4 decimal places)
Sample
|
Input |
Output |
|
0.6 0.25 20 400
|
4291.8397 |
| Added by: | Ha Minh Ngoc |
| Date: | 2023-04-02 |
| Time limit: | 1s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | CSHARP C++ 4.3.2 CPP CPP14 CPP14-CLANG FSHARP GO JAVA JS-MONKEY NODEJS PHP PYTHON PYPY PYPY3 PYTHON3 RUBY SQLITE SWIFT VB.NET |
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