C (lovely)

c/.gitignore

@@ -0,0 +1 @@
+problem

c/2015/1/problem.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+
+int main() {
+  FILE* input = fopen("../data/2015/1/input.txt", "r");
+  char c;
+  int floor = 0;
+  while (fread(&c, 1, 1, input) > 0) {
+    if (c == '(') floor++;
+    else if(c == ')') floor--;
+  }
+
+  printf("Part 1: %d\n", floor);
+
+  floor = 0;
+  int steps = 0;
+  rewind(input);
+
+  while (fread(&c, 1, 1, input) > 0) {
+    if (c == '(') floor++;
+    else if(c == ')') floor--;
+    steps++;
+    if (floor < 0) break;
+  }
+
+  printf("Part 2: %d\n", steps);
+}

c/bin/run

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+year=$1
+day=$2
+
+gcc -o $year/$day/problem $year/$day/problem.c && time ./$year/$day/problem