Random Not Random
The random we made in the previous chapter is not random values. You can run your program twice and see that nothing changes.
For this purpose, you can use the function srand()
, which sets the seed value, the number, which will be the breakpoint for the program to get a random value. For instance:
12srand(42); cout << rand();
Wait, we used a random value in the program to generate a random value? Itβs not the best idea for the seed parameter. To avoid such problems, you can use the time displayed on your computer as the seed. The procedure is not so complicated. You need only use time(0)
in srand()
function and add ctime
to your includes.
#include <iostream>
#include <ctime>
using namespace std;
int main () {
srand(time(0));
cout << rand();
return 0;
}
Remember, you should use the function srand()
only once to set the seed value.
Thanks for your feedback!
Ask AI
Ask AI
Ask anything or try one of the suggested questions to begin our chat
Awesome!
Completion rate improved to 2.94
Random Not Random
Swipe to show menu
The random we made in the previous chapter is not random values. You can run your program twice and see that nothing changes.
For this purpose, you can use the function srand()
, which sets the seed value, the number, which will be the breakpoint for the program to get a random value. For instance:
12srand(42); cout << rand();
Wait, we used a random value in the program to generate a random value? Itβs not the best idea for the seed parameter. To avoid such problems, you can use the time displayed on your computer as the seed. The procedure is not so complicated. You need only use time(0)
in srand()
function and add ctime
to your includes.
#include <iostream>
#include <ctime>
using namespace std;
int main () {
srand(time(0));
cout << rand();
return 0;
}
Remember, you should use the function srand()
only once to set the seed value.
Thanks for your feedback!