simply put my program is suppose to be able to input 20 names and ages..then when it compiles it suppose to list the names in alphabetical order. Now I did something like this but it wasnt woth names it was with numbers. Then the program is suppose to save on a txt file.I used the same exact program that i did in class. I hardly changed the data. I compile it..it says "linker error." Also is my code correct for putting characters in alphabetical order...the internet wasnt much help with that. Anyone help me out..here's my code...

#include<iostream.h>
#include<string.h>
#include<iomanip.h>
#include<fstream.h>
void main()
{
int sku[10];
char description[10][25];

//prototypes
int input ( int [ ], char[ ][25]);
void report( int [ ], char[ ][25]);
void savedata( int [ ],char[ ][25]);
void sort( int [ ], char[ ][25]);


//functions
input( sku, description);
sort( sku, description);
report( sku, description);
savedata( sku, description);
}// close main

int input( int sku[ ], char descr[ ][25])
{
int n=0;
char answer;

do {
cout << "\nEnter the age: ";
cin >> sku[n];
cout << "\nEnter the name: ";
cin >> descr[n];
n++;
cout << "\nDo want to enter another name? (y/n) ";
cin >> answer;
}while( answer == 'y' || answer == 'Y' );
return n;
}//close input

void report( int sku[ ], char descr[ ][25], int n)
{
int i;
void drawline(char , int );
drawline( '_',70);
cout << setw(7) << "age"
<< setw(25) << "Description"
<< '\n';
drawline( '_',70);
for( i = 0; i <= n-1; i++ )
{
cout << setw(7) << sku[i]
<< setw(25) << descr[i]
<< '\n';
}//close for
drawline( '_',70);
}//close report
//drawline() definition
void drawline(char c, int m )
{
int counter=1;
while ( counter <= m )
{
cout << c;
counter++;
}//close while
cout << '\n';
}//close drawline

void savedata( int sku[ ], char descr[ ][25], int n)
{
int i;
ofstream outfile;
outfile.open("a:names.txt", ios::app );

for( i = 0; i <= n-1; i++ )
{
outfile << sku[i]
<< ' ' << descr[i]
<< '\n';
}//close for

outfile.close();

}//close savedata
void sort( int sku[ ], char descr[ ][25], int n)
{
int i, j, temp;
char tempdes[25];

for( i = 0; i <= n-2; i++ )
{
for( j = i+1; j <= n-1; j++ )
{
if( descr[ j ] < descr[ i ] )
{
temp = sku[ i ];
sku[ i ] = sku[ j ];
sku[ j ] = temp;

strcpy( tempdes , descr[ i ]);
strcpy( descr[ i ] , descr[ j ]);
strcpy( descr[ j ] , tempdes);
}//close true branch
}//close f for loop
}//close i for loop
}//close sort