Project Euler Problem 569
A mountain range consists of a line of mountains with slopes of exactly 45^circ, and heights governed by the prime numbe
Solution
Answer: 21025060
Using the visibility-chain algorithm described above, the computation satisfies the checks from the problem statement:
- $P(3)=1$
- $P(9)=3$
- $\sum_{k=1}^{100} P(k)=227$
Running the full computation for $2{,}500{,}000$ peaks gives:
Answer: 21025060