Random number output to text file

[BrianCPP]

How do I output 50 numbers to a text file.

 

[bluedemus]

This is sample code to print out a 5 by 6 array of lotto numbers...I'm not sure if this is what you need...


#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <iostream.h>


void GenerateNumbers( int lotto[][6] );



main()
{

int lotto[5][6], r, c;

srand(( unsigned ) time(NULL ));

GenerateNumbers( lotto );

for ( r=0; r < 5; r++ )
{
for ( c=0; c<6; c++ )
{
cout << lotto[r][c] << &quot; &quot;;

}
cout << &quot;\n\n&quot;;

}

cout << &quot;\n\n&quot;;


}


void GenerateNumbers(int lotto[][6] )
{
int num, r, c;
for ( r=0; r < 5; r++ )
{
for ( c=0; c<6; c++ )
{
num = rand() % 47;
lotto[r][c] = num;

}
}




}

 

[pankajkumar]

Use the statements like fprintf or file writing to print in files

 

[pankajkumar]

Better use it

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>

int main(int argc, char* argv[])
{
int i;
FILE *fp;
fp=fopen(&quot;c:\\newtext.txt&quot;,&quot;w+&quot;

/* Seed the random-number generator with current time so that
* the numbers will be different every time we run.
*/
srand( (unsigned)time( NULL ) );

/* Display 10 numbers. */
for( i = 0; i < 10;i++ )
{
char szTemp[64];
printf( &quot; %6d\n&quot;, rand() );
_itoa(rand(),szTemp,10);
strcat(szTemp,&quot; &quot;
fputs(szTemp,fp);
}
fclose(fp);
return 0;
}