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Random number output to text file
- Thread starter BrianCPP
- Start date
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] << " ";
}
cout << "\n\n";
}
cout << "\n\n";
}
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;
}
}
}
#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] << " ";
}
cout << "\n\n";
}
cout << "\n\n";
}
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
Programmer
Use the statements like fprintf or file writing to print in files
pankajkumar
Programmer
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("c:\\newtext.txt","w+"
;
/* 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( " %6d\n", rand() );
_itoa(rand(),szTemp,10);
strcat(szTemp," "
fputs(szTemp,fp);
}
fclose(fp);
return 0;
}
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
int main(int argc, char* argv[])
{
int i;
FILE *fp;
fp=fopen("c:\\newtext.txt","w+"
;/* 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( " %6d\n", rand() );
_itoa(rand(),szTemp,10);
strcat(szTemp," "
;fputs(szTemp,fp);
}
fclose(fp);
return 0;
}
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