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-rwxr-xr-xAdvent-of-Code-2020/AOC-6/build.sh7
-rw-r--r--Advent-of-Code-2020/AOC-6/example.txt16
-rw-r--r--Advent-of-Code-2020/AOC-6/input.txt2234
-rwxr-xr-xAdvent-of-Code-2020/AOC-6/main.c80
-rwxr-xr-xAdvent-of-Code-2021/AOC-16/build.sh7
-rw-r--r--Advent-of-Code-2021/AOC-16/main.c25
-rwxr-xr-xAdvent-of-Code-2021/AOC-20/build.sh7
-rw-r--r--Advent-of-Code-2021/AOC-20/example.txt7
-rw-r--r--Advent-of-Code-2021/AOC-20/input.txt102
-rw-r--r--Advent-of-Code-2021/AOC-20/main.c144
-rw-r--r--Advent-of-Code-2021/AOC-3-old/input.txt1000
-rw-r--r--Advent-of-Code-2021/AOC-3-old/main.c86
-rw-r--r--Advent-of-Code-2021/AOC-3-old/sample.txt (renamed from Advent-of-Code-2021/AOC-3/sample.txt)0
-rwxr-xr-xAdvent-of-Code-2021/AOC-3/build.sh7
-rw-r--r--Advent-of-Code-2021/AOC-3/example.txt12
-rw-r--r--Advent-of-Code-2021/AOC-3/main.c127
-rw-r--r--Advent-of-Code-2021/AOC-5/main.c30
17 files changed, 3805 insertions, 86 deletions
diff --git a/Advent-of-Code-2020/AOC-6/build.sh b/Advent-of-Code-2020/AOC-6/build.sh
new file mode 100755
index 0000000..6be9241
--- /dev/null
+++ b/Advent-of-Code-2020/AOC-6/build.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -xe
+
+gcc -o main -Wall -Wextra main.c
+
+./main
diff --git a/Advent-of-Code-2020/AOC-6/example.txt b/Advent-of-Code-2020/AOC-6/example.txt
new file mode 100644
index 0000000..24211d5
--- /dev/null
+++ b/Advent-of-Code-2020/AOC-6/example.txt
@@ -0,0 +1,16 @@
+abc
+
+a
+b
+c
+
+ab
+ac
+
+a
+a
+a
+a
+
+b
+EOF
diff --git a/Advent-of-Code-2020/AOC-6/input.txt b/Advent-of-Code-2020/AOC-6/input.txt
new file mode 100644
index 0000000..2b636c2
--- /dev/null
+++ b/Advent-of-Code-2020/AOC-6/input.txt
@@ -0,0 +1,2234 @@
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diff --git a/Advent-of-Code-2020/AOC-6/main.c b/Advent-of-Code-2020/AOC-6/main.c
new file mode 100755
index 0000000..7fa135e
--- /dev/null
+++ b/Advent-of-Code-2020/AOC-6/main.c
@@ -0,0 +1,80 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if 0
+#define PART_1
+#else
+#define PART_2
+#endif
+
+#if 0
+#define FILE_PATH "example.txt"
+#else
+#define FILE_PATH "input.txt"
+#endif
+
+int q_answ = 0;
+
+void parse()
+{
+ FILE *fp = fopen(FILE_PATH, "r");
+ if(!fp) {
+ fprintf(stderr, "ERROR: Could not open file: %s", FILE_PATH);
+ exit(EXIT_FAILURE);
+ }
+
+ char questions[26] = "abcdefghijklmnopqrstuvwxyz";
+ int answered[26] = {0};
+
+#ifdef PART_2
+ int ppl_in_group = 0;
+#endif
+
+ char line[32];
+ while(fgets(line, sizeof(line), fp) != NULL)
+ {
+ if(line[0] == '\n' || strncmp(line, "EOF", 3) == 0) {
+ for(int i = 0; i < 26; i++) {
+ #ifdef PART_1
+ q_answ += answered[i];
+ #endif
+
+ #ifdef PART_2
+ if(answered[i] == ppl_in_group)
+ q_answ++;
+ #endif
+ }
+
+ #ifdef PART_2
+ ppl_in_group = 0;
+ #endif
+ memset(answered, 0, sizeof(answered));
+ continue;
+ }
+
+ #ifdef PART_2
+ ppl_in_group++;
+ #endif
+
+ for(int i = 0; i < strlen(line); i++)
+ for(int j = 0; j < 26; j++)
+ if(line[i] == questions[j]) {
+ #ifdef PART_1
+ answered[j] = 1;
+ #endif
+ #ifdef PART_2
+ answered[j]++;
+ #endif
+ }
+ }
+
+ fclose(fp);
+}
+
+int main(void)
+{
+ parse();
+ printf("%d questions answered\n", q_answ);
+ return 0;
+}
diff --git a/Advent-of-Code-2021/AOC-16/build.sh b/Advent-of-Code-2021/AOC-16/build.sh
new file mode 100755
index 0000000..6be9241
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-16/build.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -xe
+
+gcc -o main -Wall -Wextra main.c
+
+./main
diff --git a/Advent-of-Code-2021/AOC-16/main.c b/Advent-of-Code-2021/AOC-16/main.c
new file mode 100644
index 0000000..baa6501
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-16/main.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#if 1
+ #define FILE_PATH "example.txt"
+#else
+ #define FILE_PATH "input.txt"
+#endif
+
+void parse()
+{
+ FILE *fp = fopen(FILE_PATH, "r");
+ if(!fp) {
+ fprintf(stderr, "ERROR: Could not open file: %s\n", FILE_PATH);
+ exit(EXIT_FAILURE);
+ }
+
+ fclose(fp);
+}
+
+int main(void)
+{
+ parse();
+ return 0;
+}
diff --git a/Advent-of-Code-2021/AOC-20/build.sh b/Advent-of-Code-2021/AOC-20/build.sh
new file mode 100755
index 0000000..f308db6
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-20/build.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -xe
+
+gcc -o main -Wall -Wextra main.c -g
+
+./main
diff --git a/Advent-of-Code-2021/AOC-20/example.txt b/Advent-of-Code-2021/AOC-20/example.txt
new file mode 100644
index 0000000..8fa4bd4
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-20/example.txt
@@ -0,0 +1,7 @@
+..#.#..#####.#.#.#.###.##.....###.##.#..###.####..#####..#....#..#..##..###..######.###...####..#..#####..##..#.#####...##.#.#..#.##..#.#......#.###.######.###.####...#.##.##..#..#..#####.....#.#....###..#.##......#.....#..#..#..##..#...##.######.####.####.#.#...#.......#..#.#.#...####.##.#......#..#...##.#.##..#...##.#.##..###.#......#.#.......#.#.#.####.###.##...#.....####.#..#..#.##.#....##..#.####....##...##..#...#......#.#.......#.......##..####..#...#.#.#...##..#.#..###..#####........#..####......#..#
+
+#..#.
+#....
+##..#
+..#..
+..###
diff --git a/Advent-of-Code-2021/AOC-20/input.txt b/Advent-of-Code-2021/AOC-20/input.txt
new file mode 100644
index 0000000..b40d613
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-20/input.txt
@@ -0,0 +1,102 @@
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diff --git a/Advent-of-Code-2021/AOC-20/main.c b/Advent-of-Code-2021/AOC-20/main.c
new file mode 100644
index 0000000..1dbcdc9
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-20/main.c
@@ -0,0 +1,144 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+#if 0
+#define PART_1
+#else
+#define PART_2
+#endif
+
+#if 0
+ #define FILE_PATH "example.txt"
+ #define T_WIDTH 5
+ #define T_HEIGHT 5
+#else
+ #define FILE_PATH "input.txt"
+ #define T_WIDTH 100
+ #define T_HEIGHT 100
+#endif
+
+#define WIDTH 256
+#define HEIGHT 256
+
+#define OFFSET_X ((WIDTH/2) - (T_WIDTH/2))
+#define OFFSET_Y ((HEIGHT/2) - (T_HEIGHT/2))
+
+
+int board[WIDTH][HEIGHT];
+int new_board[WIDTH][HEIGHT];
+int enchance_alg[512];
+
+void parse()
+{
+ FILE *fp = fopen(FILE_PATH, "r");
+ if(!fp) {
+ fprintf(stderr, "ERROR: Could not open file: %s\n", FILE_PATH);
+ exit(EXIT_FAILURE);
+ }
+
+ char line[1024] = {0};
+
+ fgets(line, sizeof(line), fp);
+ for(int i = 0; i < 512; i++)
+ if(line[i] == '.')
+ enchance_alg[i] = 0;
+ else
+ enchance_alg[i] = 1;
+
+ fgets(line, sizeof(line), fp);
+
+ char ch;
+ int i = 0;
+ while((ch = getc(fp)) != EOF)
+ {
+ if(ch == '\n') continue;
+ else if(ch == '.')
+ board[i%T_WIDTH + OFFSET_X][i/T_WIDTH + OFFSET_Y] = 0;
+ else if(ch == '#')
+ board[i%T_WIDTH + OFFSET_X][i/T_WIDTH + OFFSET_Y] = 1;
+
+ i++;
+ }
+
+
+ fclose(fp);
+}
+
+int generate_index(int *vals)
+{
+ int index = 0;
+ for(int i = 0; i < 9; i++)
+ {
+ index |= (vals[8-i] & 1)<< i;
+ }
+ return index;
+}
+
+void enchance()
+{
+ for(int i = 0; i < HEIGHT; i++)
+ {
+ for(int j = 0; j < WIDTH; j++)
+ {
+ int vals[9];
+ for(int y = -1; y <= 1; y++)
+ for(int x = -1; x <= 1; x++)
+ {
+ int vals_i = (y+1) * 3 + (x+1);
+ if(i+y < 0 || i+y >= HEIGHT ||
+ j+x < 0 || j+x >= WIDTH)
+ vals[vals_i] = board[j][i];
+ else
+ vals[vals_i] = board[j+x][i+y];
+ }
+ new_board[j][i] = enchance_alg[generate_index(vals)];
+ }
+ }
+ memcpy(board, new_board, sizeof(board));
+}
+
+void print_board()
+{
+ for(int i = 0; i < HEIGHT; i++)
+ {
+ for(int j = 0; j < WIDTH; j++)
+ if(board[j][i] == 0) putc('.', stdout);
+ else putc('#', stdout);
+
+ putc('\n', stdout);
+ }
+}
+
+void print_alg()
+{
+ for(int i = 0; i < 512; i++)
+ {
+ if(enchance_alg[i] == 0) putc('.', stdout);
+ else putc('#', stdout);
+ }
+ putc('\n', stdout);
+}
+
+
+int main(void)
+{
+ parse();
+
+#ifdef PART_1
+ for(int i = 0; i < 2; i++)
+#endif
+#ifdef PART_2
+ for(int i = 0; i < 50; i++)
+#endif
+ enchance();
+
+ int lit = 0;
+ for(int i = 0; i < HEIGHT; i++)
+ for(int j = 0; j < WIDTH; j++)
+ if(board[j][i] == 1) lit++;
+
+ printf("%d pixels are lit\n", lit);
+ return 0;
+}
diff --git a/Advent-of-Code-2021/AOC-3-old/input.txt b/Advent-of-Code-2021/AOC-3-old/input.txt
new file mode 100644
index 0000000..e324b50
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-3-old/input.txt
@@ -0,0 +1,1000 @@
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diff --git a/Advent-of-Code-2021/AOC-3-old/main.c b/Advent-of-Code-2021/AOC-3-old/main.c
new file mode 100644
index 0000000..51cab24
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-3-old/main.c
@@ -0,0 +1,86 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdint.h>
+
+#define N 5
+#define INP_COUNT 12
+
+int table[N];
+
+void ParseInput(char *filepath)
+{
+ char ch;
+ FILE *fp;
+ fp = fopen(filepath, "r");
+
+ if(fp == NULL)
+ {
+ fprintf(stderr, "ERROR: something with file idk what fuck you");
+ exit(EXIT_FAILURE);
+ }
+
+ int i = 0;
+ while((ch = fgetc(fp)) != EOF)
+ {
+ if(ch == '\n') { i = 0; continue; }
+
+ if(ch == '1')
+ table[i] += 1;
+
+ i += 1;
+ }
+
+ fclose(fp);
+}
+
+void PrintTable()
+{
+ for(int i=0; i<N; i++)
+ {
+ printf("bitplace %d: %d\n", i+1, table[i]);
+ }
+}
+
+int PartOne()
+{
+ int gamma_val = 0;
+ for(int i=0; i<N; i++)
+ {
+ assert(table[i] != (INP_COUNT/2));
+
+ if(table[i] > (INP_COUNT/2))
+ {
+ gamma_val = gamma_val | (1 << (N-1-i));
+ }
+ }
+
+ int epsilon_val = gamma_val;
+ for(int i=0; i<N; i++)
+ {
+ epsilon_val = epsilon_val ^ (1 << i);
+ }
+
+ int result = gamma_val * epsilon_val;
+ return result;
+}
+
+int PartTwo()
+{
+
+
+ int result = 0;
+ return result;
+}
+
+int main(void)
+{
+ memset(table, 0, sizeof(int)*N);
+ ParseInput("sample.txt");
+
+ PrintTable();
+ printf("Part 1-RESULT: %d\n", PartOne());
+
+ return 0;
+}
diff --git a/Advent-of-Code-2021/AOC-3/sample.txt b/Advent-of-Code-2021/AOC-3-old/sample.txt
index a6366a8..a6366a8 100644
--- a/Advent-of-Code-2021/AOC-3/sample.txt
+++ b/Advent-of-Code-2021/AOC-3-old/sample.txt
diff --git a/Advent-of-Code-2021/AOC-3/build.sh b/Advent-of-Code-2021/AOC-3/build.sh
new file mode 100755
index 0000000..6be9241
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-3/build.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -xe
+
+gcc -o main -Wall -Wextra main.c
+
+./main
diff --git a/Advent-of-Code-2021/AOC-3/example.txt b/Advent-of-Code-2021/AOC-3/example.txt
new file mode 100644
index 0000000..a6366a8
--- /dev/null
+++ b/Advent-of-Code-2021/AOC-3/example.txt
@@ -0,0 +1,12 @@
+00100
+11110
+10110
+10111
+10101
+01111
+00111
+11100
+10000
+11001
+00010
+01010
diff --git a/Advent-of-Code-2021/AOC-3/main.c b/Advent-of-Code-2021/AOC-3/main.c
index 51cab24..29d334e 100644
--- a/Advent-of-Code-2021/AOC-3/main.c
+++ b/Advent-of-Code-2021/AOC-3/main.c
@@ -1,86 +1,97 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <assert.h>
-#include <stdint.h>
-#define N 5
-#define INP_COUNT 12
+#if 1
+ #define PART_1
+#else
+ #define PART_2
+#endif
-int table[N];
+#if 0
+ #define FILE_PATH "example.txt"
+ #define NUMS 12
+ #define BITS 5
+#else
+ #define FILE_PATH "input.txt"
+ #define NUMS 1000
+ #define BITS 12
+#endif
-void ParseInput(char *filepath)
+int nums[NUMS] = {0};
+
+void parse()
{
- char ch;
- FILE *fp;
- fp = fopen(filepath, "r");
+ FILE *fp = fopen(FILE_PATH, "r");
+ if(!fp) {
+ fprintf(stderr, "ERROR: Could not open file %s\n", FILE_PATH);
+ exit(EXIT_FAILURE);
+ }
- if(fp == NULL)
- {
- fprintf(stderr, "ERROR: something with file idk what fuck you");
- exit(EXIT_FAILURE);
- }
+ char line[32];
+ int index = 0;
+ while(fgets(line, sizeof(line), fp) != NULL)
+ {
+ for(int i = 0; i < BITS; i++)
+ nums[index] |= (line[i] - '0') << (BITS-1 - i);
+
+ index++;
+ }
- int i = 0;
- while((ch = fgetc(fp)) != EOF)
- {
- if(ch == '\n') { i = 0; continue; }
+ fclose(fp);
+}
- if(ch == '1')
- table[i] += 1;
+ulong gen_gamma()
+{
+ int most_common[BITS] = {0};
+
+ for(int i = 0; i < BITS; i++)
+ {
+ int ones = 0;
- i += 1;
- }
+ for(int j = 0; j < NUMS; j++)
+ if(nums[j] & (1 << i)) ones++;
- fclose(fp);
+ if(ones > NUMS/2) most_common[i] = 1;
+ }
+
+ ulong gamma = 0;
+
+ for(int i = 0; i < BITS; i++)
+ gamma |= most_common[i] << i;
+
+ return gamma;
}
-void PrintTable()
+void print_nums()
{
- for(int i=0; i<N; i++)
- {
- printf("bitplace %d: %d\n", i+1, table[i]);
- }
+ for(int i = 0; i < NUMS; i++)
+ printf("%b\n", nums[i]);
}
-int PartOne()
+void part_1()
{
- int gamma_val = 0;
- for(int i=0; i<N; i++)
- {
- assert(table[i] != (INP_COUNT/2));
-
- if(table[i] > (INP_COUNT/2))
- {
- gamma_val = gamma_val | (1 << (N-1-i));
- }
- }
-
- int epsilon_val = gamma_val;
- for(int i=0; i<N; i++)
- {
- epsilon_val = epsilon_val ^ (1 << i);
- }
+ ulong gamma = gen_gamma();
+ ulong epsilon = (~gamma & ~(~0 << BITS));
- int result = gamma_val * epsilon_val;
- return result;
+ printf("Power consumption is %lu", gamma*epsilon);
}
-int PartTwo()
+void part_2()
{
-
-
- int result = 0;
- return result;
+ exit(EXIT_FAILURE);
}
int main(void)
{
- memset(table, 0, sizeof(int)*N);
- ParseInput("sample.txt");
+ parse();
+
+#ifdef PART_1
+ part_1();
+#endif
+#ifdef PART_2
+ part_2();
+#endif
- PrintTable();
- printf("Part 1-RESULT: %d\n", PartOne());
-
- return 0;
+ return 0;
}
diff --git a/Advent-of-Code-2021/AOC-5/main.c b/Advent-of-Code-2021/AOC-5/main.c
index ea39e06..d83ec06 100644
--- a/Advent-of-Code-2021/AOC-5/main.c
+++ b/Advent-of-Code-2021/AOC-5/main.c
@@ -97,42 +97,16 @@ void print_board()
}
}
-void part_1()
+int main(void)
{
parse();
int count = 0;
for(int i = 0; i < HEIGHT; i++)
for(int j = 0; j < WIDTH; j++)
- if(board[j][i] >= 2) count++;
+ if(board[j][i] >= 2) count += 1;
printf("Count is %d\n", count);
-}
-
-void part_2()
-{
- parse();
-
- int count = 0;
- for(int i = 0; i < HEIGHT; i++)
- for(int j = 0; j < WIDTH; j++)
- if(board[j][i] >= 2) count++;
-
- // print_board();
-
- printf("Count is %d\n", count);
-}
-
-int main(void)
-{
-
-#ifdef PART_1
- part_1();
-#endif
-
-#ifdef PART_2
- part_2();
-#endif
return 0;
}
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