Solución al reto 2 de la Semic Challenge del grupo "josep_pon" en la HackEPS 2017

hackeps-2017-challenge-2.cpp

#include <string>
#include <fstream>
#include <sstream>
#include <iostream>
#include <gmp.h>

using namespace std;


void print_nums(unsigned int a1, unsigned int b1, int contador)
{
	mpz_t a,b,n,suma;
	mpz_init_set_ui(a,a1);
	mpz_init_set_ui(b,b1);
	mpz_init_set_ui(suma,a1);
	mpz_init(n);
	mpz_nextprime (n, a);
	while (mpz_cmp ( n,b) <= 0)
	{
		mpz_add(suma,suma,n);
		mpz_nextprime(n,n);
	}
	gmp_printf ("Case #%d: %Zd\n",contador, suma);	

}

int main()
{
    
    std::ifstream file("input.txt");
    int value1,value2, quant, contador=1;
    std::string   line;

    std::getline(file, line);
    std::stringstream  lineStream(line);
    lineStream >> quant;

    while(std::getline(file, line))
    { 
    	std::stringstream  lineStream(line);    
        while(lineStream >> value1 >> value2)                    
            print_nums(value1,value2,contador++);      
        
    }
}