#include <iostream>
 
/************Declarations of Functions*********/
	void func1();
	void func2();
//=============================================Tue 28 Apr 2009 18:37:48 IST//
/* Global Test Variables */
 
	int const max_length=18;
	int quest_count=0 ;
	char input_line[max_length]="???sky???";
 
 
int main()
{	
 
	func1();// Character string with While loop
	std::cout<<"No Of Question Marks = " << quest_count<< "\n";
	quest_count=0;
	func2();//Pointer Based Passing.
	std::cout<<"No Of Question Marks(Pointer Based) = " << quest_count<< "\n";
}
 
void func1()
{
	int i=0;
	while(i<max_length)
		{
			if(input_line[i]=='?')
			quest_count++;
		i++;
		}
}
 
void func2()
{
 
	char *ptr=input_line;
	while(*ptr!=0)
	{
		if(*ptr=='?')
			{
			quest_count++;
			}
		*ptr++;
	}
 
}