Patterns

patterns/equilateral_triangle.c

@@ -0,0 +1,34 @@
+/*    *
+     * *
+    * * *
+   * * * *  */
+
+#include <stdio.h>
+void pattern(int x);
+int main()
+{
+    int n;
+    printf("Enter the number of rows ");
+    scanf("%d",&n);
+    pattern(n);  
+    return 0;
+} 
+void pattern(int x)
+{
+  int i, j;
+  for(i=1; i<=x; i++)
+  {
+      for(j=1; j<=x; j++)
+      {
+          if(j<=x-i || j>x+i)
+          {
+              printf(" ");
+          }
+          else
+          {
+              printf("* ");
+          }
+      }
+      printf("\n");
+  }
+}

patterns/half_pyramid_progressive_numbers.c

@@ -0,0 +1,26 @@
+/*1   
+  12  
+  123 
+  1234*/
+#include <stdio.h>
+void pattern(int x);
+int main()
+{
+    int n;
+    printf("Enter the number of rows ");
+    scanf("%d",&n);
+    pattern(n);  
+    return 0;
+}
+void pattern(int x)
+{
+  int i,j;  
+  for(i=1; i<=x; i++)
+  {
+    for(j=1; j<=i; j++)
+    {
+      printf("%d",j);
+    }
+    printf("\n"); 
+  }  
+}

patterns/inverted_half_pyramid.c

@@ -0,0 +1,26 @@
+/*  ****
+    ***
+    **
+    *       */
+#include <stdio.h>
+void pattern(int x);
+int main()
+{
+    int n;
+    printf("Enter the number of rows ");
+    scanf("%d",&n);
+    pattern(n);  
+    return 0;
+}
+void pattern(int x)
+{
+    int i,j;  
+    for(i=x; i>=1; i--)
+    {
+      for(j=1; j<=i; j++)
+      {
+        printf("*");
+      }
+      printf("\n"); 
+    }  
+}

patterns/pyramid_with_numbers.c

@@ -0,0 +1,26 @@
+/*1   
+  22  
+  333 
+  4444*/
+#include <stdio.h>
+void pattern(int x);
+int main()
+{
+    int n;
+    printf("Enter the number of rows ");
+    scanf("%d",&n);
+    pattern(n);  
+    return 0;
+}
+void pattern(int x)
+{
+  int i,j;  
+  for(i=1; i<=x; i++)
+  {
+    for(j=1; j<=i; j++)
+    {
+      printf("%d",i);
+    }
+    printf("\n"); 
+  }  
+}