Chapter4

DeitelC/Chapter4/test2.c

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+#include <stdio.h>
+
+int main(void) {
+    int odd;
+
+    // Prompt user for input
+    puts("Enter an odd number: ");
+    if (!scanf("%d", &odd) || odd % 2 == 0) {
+        puts("Enter a valid odd integer!");
+        return 1;
+    }
+
+    // Print the diamond pattern
+    int mid = odd / 2; // Middle point of the diamond
+
+    // Upper half of the diamond
+    for (int i = 0; i < mid; i++) {
+        // Print leading spaces
+        for (int j = 0; j < mid - i; j++) {
+            printf(" ");
+        }
+        // Print asterisks
+        for (int j = 0; j < 2 * i + 1; j++) {
+            printf("*");
+        }
+        printf("\n");
+    }
+
+    // Middle line of the diamond
+    for (int i = 0; i < odd; i++) {
+        printf("*");
+    }
+    printf("\n");
+
+    // Lower half of the diamond
+    for (int i = mid - 1; i >= 0; i--) {
+        // Print leading spaces
+        for (int j = 0; j < mid - i; j++) {
+            printf(" ");
+        }
+        // Print asterisks
+        for (int j = 0; j < 2 * i + 1; j++) {
+            printf("*");
+        }
+        printf("\n");
+    }
+
+    return 0;
+}