1 files changed, 62 insertions, 0 deletions
diff --git a/rotting-oranges-c/main.c b/rotting-oranges-c/main.c
new file mode 100644
index 0000000..f1a4caf
--- /dev/null
+++ b/rotting-oranges-c/main.c
@@ -0,0 +1,62 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define MIN(a,b) (((a)<(b))?(a):(b))
+#define MAX(a,b) (((a)>(b))?(a):(b))
+
+int orangesRotting(int** grid, int gridSize, int* gridColSize) {
+  int *grid2 = malloc(sizeof(int) * gridSize * *gridColSize);
+  memcpy(grid2, *grid, sizeof(int) * gridSize * *gridColSize);
+  printf("%d %d\n", gridSize, *gridColSize);
+
+  for (int minutes = 0;; minutes++) {
+    for (int x = 0; x < gridSize; x++) {
+      for (int y = 0; y < *gridColSize; y++) {
+        printf("%d ", (*grid)[x * gridSize + y]);
+        if ( (*grid)[x * gridSize + y] != 2 ) continue;
+
+        for (int dx = MAX(x-1,0); dx < MIN(x+2, gridSize); dx++) 
+            if ((*grid)[dx * gridSize + y] == 1) (grid2)[dx * gridSize + y] = 2; 
+        for (int dy = MAX(y-1, 0); dy < MIN(y+2, *gridColSize); dy++) 
+            if ((*grid)[x * gridSize + dy] == 1) (grid2)[x * gridSize + dy] = 2; 
+      }
+      printf("\n");
+    }
+
+    int finished = 1;
+    int same = 1;
+    for (size_t i = 0; i < gridSize * *gridColSize; i++) {
+      if ((*grid)[i] == 1) finished = 0; 
+      same &= (*grid)[i] == grid2[i];
+    }
+
+    if (finished) return minutes;
+
+    if (same) return -1;
+    int *temp = *grid;
+    *grid = grid2;
+    grid2 = temp;
+    memcpy(grid2, *grid, sizeof(int) * gridSize * *gridColSize);
+  }
+
+  return 0;
+}
+
+int main() {
+  int *test1 = malloc(sizeof(int) * 3 * 3);
+  int test[] = {2,1,1,1,1,0,0,1,1};
+  memcpy(test1, test, sizeof(int) * 3 * 3);
+
+  int gridColSize = 3;
+
+  int result = orangesRotting(&test1, 3, &gridColSize);
+
+  printf("is %d expeceted %d\n", result, 4);
+
+  assert(result == 4);
+}
+  
+
+