8 files changed, 19 insertions, 19 deletions

diff --git a/2024/04/day04a.cpp b/2024/04/day04a.cpp
index 887ebef..d108dec 100644
--- a/2024/04/day04a.cpp
+++ b/2024/04/day04a.cpp
@@ -49,7 +49,7 @@ public:
                 cells = new char[M * N];
                 for (int i = 0; i < N; i++)
                         for (int j = 0; j < M; j++)
-                                cells[N*i + j] = j < (int)lines[i].size() ?
+                                cells[M*i + j] = j < (int)lines[i].size() ?
                                     lines[i][j] : out_of_bound;
         }
 
@@ -73,7 +73,7 @@ private:
                 auto [i, j] = p;
                 if (i >= N || i < 0 || j >= M || j < 0)
                         return out_of_bound;
-                return cells[N*i + j];
+                return cells[M*i + j];
         }
 };
 
diff --git a/2024/04/day04b.cpp b/2024/04/day04b.cpp
index 3d338d8..6e8a950 100644
--- a/2024/04/day04b.cpp
+++ b/2024/04/day04b.cpp
@@ -49,7 +49,7 @@ public:
                 cells = new char[M * N];
                 for (int i = 0; i < N; i++)
                         for (int j = 0; j < M; j++)
-                                cells[N*i + j] = j < (int)lines[i].size() ?
+                                cells[M*i + j] = j < (int)lines[i].size() ?
                                     lines[i][j] : out_of_bound;
         }
 
@@ -73,7 +73,7 @@ private:
                 auto [i, j] = p;
                 if (i >= N || i < 0 || j >= M || j < 0)
                         return out_of_bound;
-                return cells[N*i + j];
+                return cells[M*i + j];
         }
 };
 
diff --git a/2024/06/day06a.cpp b/2024/06/day06a.cpp
index 69b9340..b229c21 100644
--- a/2024/06/day06a.cpp
+++ b/2024/06/day06a.cpp
@@ -55,7 +55,7 @@ public:
                 cells = new char[M * N];
                 for (int i = 0; i < N; i++)
                         for (int j = 0; j < M; j++)
-                                cells[N*i + j] = j < (int)lines[i].size() ?
+                                cells[M*i + j] = j < (int)lines[i].size() ?
                                     lines[i][j] : out_of_bound;
         }
 
@@ -86,7 +86,7 @@ private:
 
         int coord(pair<int, int> p) {
                 auto [i, j] = p;
-                return i >= N || i < 0 || j >= M || j < 0 ? -1 : N*i + j;
+                return i >= N || i < 0 || j >= M || j < 0 ? -1 : M*i + j;
         }
 };
 
diff --git a/2024/06/day06b.cpp b/2024/06/day06b.cpp
index 2498536..cb5d281 100644
--- a/2024/06/day06b.cpp
+++ b/2024/06/day06b.cpp
@@ -62,9 +62,9 @@ public:
                 visited = new int[M * N];
                 for (int i = 0; i < N; i++) {
                         for (int j = 0; j < M; j++) {
-                                cells[N*i + j] = j < (int)lines[i].size() ?
+                                cells[M*i + j] = j < (int)lines[i].size() ?
                                     lines[i][j] : out_of_bound;
-                                visited[N*i + j] = 0;
+                                visited[M*i + j] = 0;
                         }
                 }
         }
@@ -111,7 +111,7 @@ private:
 
         int coord(pair<int, int> p) {
                 auto [i, j] = p;
-                return i >= N || i < 0 || j >= M || j < 0 ? -1 : N*i + j;
+                return i >= N || i < 0 || j >= M || j < 0 ? -1 : M*i + j;
         }
 
         void set_cell(pair<int, int> p, char c) {
diff --git a/2024/10/day10a.cpp b/2024/10/day10a.cpp
index fda4ab8..2c01ea2 100644
--- a/2024/10/day10a.cpp
+++ b/2024/10/day10a.cpp
@@ -42,7 +42,7 @@ public:
                 cells = new int[M * N];
                 for (int i = 0; i < N; i++)
                         for (int j = 0; j < M; j++)
-                                cells[N*i + j] = lines[i][j] - '0';
+                                cells[M*i + j] = lines[i][j] - '0';
         }
 
         ~Board() {
@@ -59,7 +59,7 @@ private:
 
         int coord(pair<int, int> p) {
                 auto [i, j] = p;
-                return i >= N || i < 0 || j >= M || j < 0 ? -1 : N*i + j;
+                return i >= N || i < 0 || j >= M || j < 0 ? -1 : M*i + j;
         }
 };
 
diff --git a/2024/10/day10b.cpp b/2024/10/day10b.cpp
index de972c0..96eb195 100644
--- a/2024/10/day10b.cpp
+++ b/2024/10/day10b.cpp
@@ -42,7 +42,7 @@ public:
                 cells = new int[M * N];
                 for (int i = 0; i < N; i++)
                         for (int j = 0; j < M; j++)
-                                cells[N*i + j] = lines[i][j] - '0';
+                                cells[M*i + j] = lines[i][j] - '0';
         }
 
         ~Board() {
@@ -59,7 +59,7 @@ private:
 
         int coord(pair<int, int> p) {
                 auto [i, j] = p;
-                return i >= N || i < 0 || j >= M || j < 0 ? -1 : N*i + j;
+                return i >= N || i < 0 || j >= M || j < 0 ? -1 : M*i + j;
         }
 };
 
diff --git a/2024/12/day12a.cpp b/2024/12/day12a.cpp
index b972fd2..89cc3d9 100644
--- a/2024/12/day12a.cpp
+++ b/2024/12/day12a.cpp
@@ -46,8 +46,8 @@ public:
                 cells = new char[M * N];
                 for (int i = 0; i < N; i++) {
                         for (int j = 0; j < M; j++) {
-                                region[N*i + j] = -1;
-                                cells[N*i + j] = j < (int)lines[i].size() ?
+                                region[M*i + j] = -1;
+                                cells[M*i + j] = j < (int)lines[i].size() ?
                                     lines[i][j] : out_of_bound;
                         }
                 }
@@ -74,7 +74,7 @@ private:
 
         int coord(pair<int, int> p) {
                 auto [i, j] = p;
-                return i >= N || i < 0 || j >= M || j < 0 ? -1 : N*i + j;
+                return i >= N || i < 0 || j >= M || j < 0 ? -1 : M*i + j;
         }
 };
 
diff --git a/2024/12/day12b.cpp b/2024/12/day12b.cpp
index 4078fa7..987df47 100644
--- a/2024/12/day12b.cpp
+++ b/2024/12/day12b.cpp
@@ -57,8 +57,8 @@ public:
         {
                 for (int64_t i = 0; i < N; i++) {
                         for (int64_t j = 0; j < M; j++) {
-                                region[N*i+j] = -1;
-                                cells[N*i+j] = lines[i][j];
+                                region[M*i+j] = -1;
+                                cells[M*i+j] = lines[i][j];
                         }
                 }
         }
@@ -107,7 +107,7 @@ private:
 
         int64_t coord(const Position p) const {
                 auto [i, j] = p;
-                return i >= N || i < 0 || j >= M || j < 0 ? -1 : N * i + j;
+                return i >= N || i < 0 || j >= M || j < 0 ? -1 : M * i + j;
         }
 
         bool is_visited(const Position p, const Direction d) const {