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Project Euler - problem 007

August 1st, 2007 by Daniel Høyer Iversen

By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.

What is the 10001st prime number?

1
2
3
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13
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49

 
 
#include <iostream>
#include <vector>
using namespace std;
 
#define numbersOfPrimes 10001
//declare methods
bool isPrimeNumber(int num);
 
 
 
 
int main ()
{
 
int res(1), ant(1) ;
 
 
while(ant < numbersOfPrimes){
res+= 2;
if (isPrimeNumber(res) ){
ant++;
}
 
}
 
cout << "resultatet er ";
cout << res << "\n";
 
return 0;
}vector<int> numbers;
 
 
 
// methods
bool isPrimeNumber(int num){
// static vector<int> primeNumbers;
 
for(int i = 3; i < num ; i+=2){
if( num % i == 0){
return false;
}
}
 
//primeNumbers.push_back(num);
 
return true;
}
Do you want to use this code?

1 Response to “Project Euler - problem 007”

  1. Therminator007

    I can give you my class which I used to solve problem10.
    Just send me an e-mail.

    Mar 16th, 2008    1:58 pm   

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