UVa-10878-Decode the tape

AOAPC I: Beginning Algorithm Contests (Rujia Liu) :: Volume 1. Elementary Problem Solving :: String

// 10878 - Decode the tape
#include <iostream>
#include <cstring>
using namespace std;

int c[] = {0, 0, 64, 32, 16, 8, 0, 4, 2, 1, 0};

int main(void)
{
	char s[20];
	int i, len, value;
	cin.getline(s, 20);
	while(cin.getline(s, 20) && s[0]!='_')
	{
		value = 0;
		len = strlen(s);
		for(i=0; i<len; i++)
			if(s[i] == 'o')
				value += c[i];
		cout << (char)value;
	}
	return 0;
}