srand
Syntax:
#include <cstdlib> void srand( unsigned seed );
The function srand() is used to seed the random sequence generated by rand(). For any given seed, rand() will generate a specific "random" sequence over and over again.
srand( time(NULL) ); for( i = 0; i < 10; i++ ) printf( "Random number #%d: %d\n", i, rand() );
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