经常有在某个区间内产生随机数的需求,于是下面的代码就用得上了
srand((unsigned)time(0));
(a,b) (rand()%(b-a+1))+a-1
[a,b) (rand()%(b-a))+a
(a,b] (rand()%(b-a))+a+1
[a,b] (rand()%(b-a+1))+a
经常有在某个区间内产生随机数的需求,于是下面的代码就用得上了
srand((unsigned)time(0));
(a,b) (rand()%(b-a+1))+a-1
[a,b) (rand()%(b-a))+a
(a,b] (rand()%(b-a))+a+1
[a,b] (rand()%(b-a+1))+a