I found tasks from that GitHub page and had the interest to resolve while stayed home with COVID-19.
I know that it's not the best solutions in my code :) But you can help me to improve it
- Find the last 10 digits of the sum of the sequence 1^1 + 2^2 + 3^3 + ... + 1000^1000?:
- What is the index of the first member of the Fibonacci series, which has 1000 digits in decimal notation?:
- Find the sum of the digits in the decimal notation of the number 100!?:
- What is the sum of the digits in the decimal notation of 2 ^ 1000?:
- Find the number and it max sequence length
Run gradle to get the answer for the tasks 1-5.
gradle run
- In task 2 we can use the formula to find index, but standard digit numbers (int, long, double) have limits, that why I used BigDecimal.
double n = 144.0;
int a = (int) Math.round(Math.log(n * Math.sqrt(5) + 0.5) / Math.log((1 + Math.sqrt(5))/2));
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Task #5 could be improved by using storage for already found sequences.
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Task #6 with JNDI skipped, doesn't interest me.