#include <iostream>
#include <string.h>
#include <assert.h>

// Read all of input into the memory.
// Read each line into a string
// allocate memory for the string
// copy the string into that memory
// add the newly allocated string
// to an array of pointers
int read_lines( char *lines[], int maxnlines )
{
        const int maxlinelen = 8000;
        char line[ maxlinelen ];
        int nlines = 0;
        long total_bytes = 0;
        while ( std::cin.getline( line, maxlinelen ) ) {
                int len = std::cin.gcount(); // includes space for '\0'
                assert( len == strlen( line ) + 1 );
                total_bytes += len;
                char *p;
                if ( nlines >= maxnlines
                     || ( p = new char[ len ] ) == NULL ) {
                        return -1;
                } else {
                        strcpy( p, line );
                        lines[ nlines++ ] = p;
                }
        }
        std::cout << "allocated a total of " << total_bytes << '\n';
        return nlines;
}

void write_lines( char *lines[], int nlines )
{
        while ( nlines-- > 0 )
                std::cout << *lines++ << '\n';
}

void free_lines( char *lines[], int nlines )
{
        while ( nlines-- > 0 )
                delete [] *lines++;
}

int main( void )
{
        const int maxlines = 100;
        char *line[ maxlines ];

        int nlines = read_lines( line, maxlines );
        if ( nlines >= 0 ) {
                write_lines( line, nlines );
                free_lines( line, nlines );
        } else {
                std::cerr << "Input is too big to read\n";
        }
}