Random generator does't work

[ktk0541]

Help please. I need to generate 200 number in a file. Each of these 200 numbers is the sum of 12 random number from 0-8 using rand()%9. But every time it goes through the while loop it generates the same number it generated for the first time. I've tried srand(time(NULL)) and it doesn't work. I placed it in different location of the code and it didn't help either. What do I need to do?

****************************************************************************** #include <iomanip>
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <stdlib.h>
#include <ctime>

using namespace std;


int main()
{
int counter = 0;
int counter12 = 0;
int sum = 0;


//OPEN THE FILE
ofstream rData;
rData.open ("random.txt");

srand((unsigned)time(0));


//WRITE TO A FILE, START COUNTING 200 TIMES
while(counter < 200)
{
//START COUNTING 12 times to add up the sum
while(counter12 < 12)
{
sum += (rand()%9);
counter12++;

}

//INSERT THE SUM INTO A FILE
rData << sum << ' ' ;
counter++;
}


rData.close();
return 0;

}
**************************************************************************

[vlad from moscow]

//WRITE TO A FILE, START COUNTING 200 TIMES
while(counter < 200)
{
sum = 0;
counter12 = 0;
//START COUNTING 12 times to add up the sum
while(counter12 < 12)
{
sum += (rand()%9);
counter12++;

}

[ktk0541]

Thank you Vlad! Now I see that counter12 and sum didn't come to zero again to calculate another number! Thanks a lot!