C 2022 day 1

c/2022/1/problem.c

@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../../lib/aoc.h"
+
+int main() {
+  char *input = aoc_read_input();
+  char *seek = input;
+
+  int current_cals = 0;
+  int current_elf = 0;
+  int max_elf = 0;
+  int second_max_elf = 0;
+  int third_max_elf = 0;
+
+  while (seek != NULL) {
+    char *double_line_break = strstr(seek, "\n\n");
+    if (double_line_break == NULL) {
+      seek = NULL;
+    } else {
+      *double_line_break = '\0';
+      char *line = strtok(seek, "\n");
+      while (line != NULL) {
+	current_cals = atoi(line);
+	current_elf += current_cals;
+	line = strtok(NULL, "\n");
+      }
+
+      if (current_elf > max_elf) {
+	int z = current_elf;
+	current_elf = max_elf;
+	max_elf = z;
+      }
+
+      if (current_elf > second_max_elf) {
+	int z = current_elf;
+	current_elf = second_max_elf;
+	second_max_elf = z;
+      }
+
+      if (current_elf > third_max_elf) {
+	int z = current_elf;
+	current_elf = third_max_elf;
+	third_max_elf = z;
+      }
+
+      current_elf = 0;
+      
+      seek = double_line_break + 1;
+      *seek = '\0';
+      seek = seek + 1;
+    }
+  }
+
+  printf("Part 1: %d\n", max_elf);
+  printf("Part 2: %d\n", max_elf + second_max_elf + third_max_elf);
+
+  free(input);
+  return 0;
+}

c/bin/run

@@ -3,5 +3,5 @@
 year=$1
 day=$2
 
-gcc -o $year/$day/problem $year/$day/problem.c
+gcc -o $year/$day/problem $year/$day/problem.c -lm
 time (cat ../data/$year/$day/input.txt | ./$year/$day/problem)