Answer / chuck dorris

#include <string>
#include <sstream>

std::string lookandsay(const std::string &s)
{
std::ostringstream r;

for (unsigned int i = 0; i != s.length(); ) {
unsigned int new_i = s.find_first_not_of(s[i], i+1);
if (new_i == std::string::npos)
new_i = s.length();

r << new_i - i << s[i];
i = new_i;
}
return r.str();
}

#include <iostream>

int main()
{
std::string laf = "1";

std::cout << laf << std::endl;
for (int i = 0; i < 10; i++) {
laf = lookandsay(laf);
std::cout << laf << std::endl;
}

return 0;
}

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