Update main.h

Author: Aysuarex

0x04-more_functions_nested_loops/main.h

@@ -1 +1,17 @@
-djjdfdjden
+#ifndef _MAIN_H_
+#define _MAIN_H_
+
+int _isupper(int c);
+int _isdigit(int c);
+int mul(int a, int b);
+void print_numbers(void);
+int _putchar(char c);
+void print_most_numbers(void);
+void more_numbers(void);
+void print_line(int n);
+void print_diagonal(int n);
+void print_square(int size);
+void print_triangle(int size);
+void print_number(int n);
+
+#endif