Solutions to challenge 88.

3 files changed, 111 insertions, 0 deletions

diff --git a/challenge-088/deadmarshal/C/ch-1.c b/challenge-088/deadmarshal/C/ch-1.c
new file mode 100644
index 0000000000..b67f148411
--- /dev/null
+++ b/challenge-088/deadmarshal/C/ch-1.c
@@ -0,0 +1,53 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<assert.h>
+
+int *array_of_product(const int *arr, size_t sz)
+{
+  int i,j;
+  int *result = malloc(sz * sizeof(int));
+  assert(result && "Allocation failed!\n");
+  
+  for(i = 0; i < sz; i++)
+  {
+    int prod = 1;
+    for(j = 0; j < sz; j++)
+    {
+      if(i != j)
+      {
+	prod *= arr[j];
+	result[i] = prod;
+      }
+    }
+  }
+  
+  return result;
+}
+
+int main(void)
+{
+  int arr[] = {5, 2, 1, 4, 3};
+  int arr2[] = {2, 1, 4, 3};
+  
+  size_t n = 5;
+  size_t n2 = 4;
+  
+  int *result = array_of_product(arr, n);
+  int *result2 = array_of_product(arr2, n2);
+  
+  for(int i = 0; i < n; i++)
+    printf("%d ", result[i]);
+  printf("\n");
+
+  for(int i = 0; i < n2; i++)
+    printf("%d ", result2[i]);
+  printf("\n");
+
+  
+  if(result)
+    free(result);
+  if(result2)
+    free(result2);
+  
+  return 0;
+}
diff --git a/challenge-088/deadmarshal/C/ch-2.c b/challenge-088/deadmarshal/C/ch-2.c
new file mode 100644
index 0000000000..068f50ff2a
--- /dev/null
+++ b/challenge-088/deadmarshal/C/ch-2.c
@@ -0,0 +1,57 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<assert.h>
+
+void spiral_matrix(size_t rows, size_t cols, const int mat[rows][cols])
+{
+  int i, k = 0, l = 0;
+  int last_row = rows-1, last_col = cols-1;
+  
+  while(k <= last_row && l <= last_col)
+  {
+    for(i = l; i <= last_col; i++)
+      printf("%d ", mat[k][i]);
+    k++;
+
+    for(i = k; i <= last_row; i++)
+      printf("%d ", mat[i][last_col]);
+    last_col--;
+
+    if(k <= last_row)
+    {
+      for(i = last_col; i >= l; i--)
+	printf("%d ", mat[last_row][i]);
+      last_row--;
+    }
+    if(l <= last_col)
+    {
+      for(i = last_row; i >= k; i--)
+	printf("%d ", mat[i][l]);
+      l++;
+    }
+  }
+}
+
+int main(void)
+{
+  
+  int arr[3][3] = {
+    { 1, 2, 3 },
+    { 4, 5, 6 },
+    { 7, 8, 9 }
+  };
+  
+  int arr2[4][4] = {
+    {  1,  2,  3,  4 },
+    {  5,  6,  7,  8 },
+    {  9, 10, 11, 12 },
+    { 13, 14, 15, 16 }
+  };
+  
+  spiral_matrix(3, 3, arr);
+  puts("");
+  spiral_matrix(4, 4, arr2);
+  puts("");
+    
+  return 0;
+}
diff --git a/challenge-088/deadmarshal/README b/challenge-088/deadmarshal/README
new file mode 100644
index 0000000000..bd0573c85f
--- /dev/null
+++ b/challenge-088/deadmarshal/README
@@ -0,0 +1 @@
+Solution by Ali Moradi