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- Project Euler 267: Billionaire
- Making decisions under uncertainty in everyday life
- Taking a break
- Project Euler 146: Investigating a Prime Pattern
- Project Euler 145: How many reversible numbers are there below one-billion?
- UVa Online Judge New Platform
- Project Euler 144: Investigating multiple reflections of a laser beam.
- Project Euler 143: Investigating the Torricelli point of a triangle
- Project Euler 142: Perfect Square Collection
- Project Euler 141:Investigating progressive numbers, n, which are also square.

**shohan**: why take long long int i knew that int size is 32 bit so pow(2,32) is fits to the int...**Sr**: Hi, I managed to write the algorithm on my own. But I still couldn't get the wright answer. And I saw you used the modulo operator to get the rest of ...**peter**: Hi Sandu, No consolation but I get exactly the same result as you in my Ruby program. It runs in 1s and the sums are all OK, except for d=8. The corre...**Rob**: If you use binary search, your solution is very fast (this is using C++ but it shouldn't be much different for C#):[code language="C++"] int hi...**Jean-Marie Hachey**: Quadratic equations giving primes. Prime numbers being only positive, it is evident that only eqn [1] by Euler will produce specifically sequences of...**devil**: A small code which can calculate the power of 2 upto 2^10000 +....#include using namespace std;main(){ int a[400]={0,1}; int n,i,j; cin&g...

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