Day 1 solution

Dependencies

Change contents

• file addition: 2017 (d--r------)
  [1.0]
• file addition: day1.cpp (----------)
  [0.7]
  + #include <iostream>

  + #include <fstream>

  +

  + struct cll {

  + char c;

  + cll *next;

  + };

  +

  + int main(int argc, char** args) {

  + std::ifstream input = std::ifstream(args[1]);

  + char c0;

  + input.get(c0);

  + cll *root = new cll();

  + root->c = c0;

  + cll *current = root;

  + while(!input.eof()) {

  + current->next = new cll();

  + current = current->next;

  + input.get(current->c);

  + }

  + current->c = c0;

  + current->next = NULL;

  + unsigned long long tally = 0;

  + current = root;

  + while(current->next) {

  + if(current->c == current->next->c) {

  + tally += current->c - '0';

  + }

  + current = current->next;

  + }

  + current = root;

  + while(current) {

  + cll* t = current->next;

  + delete current;

  + current = t;

  + }

  + std::cout << tally << "\n";

  + }