Reverse String in C++

#include <iostream>
#include <string.h>
using namespace std;
#define MAX 100
// prototypes/function(s) declaration
void input(char line[]);
void proc(char line[],char rev_line[]);
void check(char line[],char rev_line[]);
int main()
{
system("color f3"); //changing the color of output screen
//declaration 
char line[MAX],rev_line[MAX];
//function(s) calling
input(line);
proc(line,rev_line);
check(line,rev_line);
cout<<endl<<endl;
system("pause");
return 0;
}//end of main()
void input(char line[])
{
cout<<"Enter line of text, to FINISH press Enter Key : ";
cin.getline(line,MAX);
}//end of input()
void proc(char line[],char rev_line[])
{
int n=0, len=strlen(line);
for(int i=len-1;i>=0;i--)
{
rev_line[n]=line[i];
n++;
}
rev_line[n]='\0';//delimiting the string with NULL Character
}//end of proc()
void check(char line[],char rev_line[])
{
cout<<"\nReverse = "<<rev_line<<endl;
if(stricmp(line,rev_line)==0) //stricmp will ignore the case
cout<<"\nThis String is a Palindrome.\n";
else
cout<<"\nThis string is NOT a Palindrome.\n";
}   //end of check