### gol_alu's blog

By gol_alu, history, 9 months ago, ,

f(n) = n*f(n-1) + f(n-2)

Can this be solved using matrix exponentiation ?

•
• -4
•

By gol_alu, history, 12 months ago, ,

Given an array of integers and a value, how do I efficiently ( better than O(n) ) find the element of the array that gives the maximum result after XORing with the given value?

•
• -8
•

By gol_alu, 15 months ago, ,

Can someone help me to find the implementation of Fleury’s Algorithm in c++ or some resources ? thanks in advance :)

•
• -16
•

By gol_alu, history, 16 months ago, ,

Is it possible to find the sum of digit in a ^ b without using Big Int? Where 0 <= a <= 9 & 1<= b <= 4000

By gol_alu, history, 23 months ago, ,

How can i solve this ? :(

How many ways to make a number n, using k number of coins from an array of coins?

where 1 <= n <= 10 ^ 9 and 1 <= k <= 10

for example if the array is A[1, 2, 3, 5, 8, 13] and k = 4 and n = 13 . Answer will be 4

as, 1 + 1 + 3 + 8 = 13, 1 + 2 + 2 + 8 = 13, 1 + 2 + 5 + 5 = 13, 2 + 3 + 3 + 5 = 13