0001 #include <cstdlib>
0002 #include <typeinfo>
0003 #include <ctime> //通常用当前时刻设置随机种子
0004 using Rank = uint32_t; //DSACPP全篇统一
0005 
0006 static Rank dice(Rank range) { //取随机数：最大范围 = [0, range) = 2^60 - 1 = 0x0FFFFFFFFFFFFFFF
0007    uint64_t x = RAND_MAX < range ? 
0008                     (uint64_t)rand() << 45
0009                   | (uint64_t)rand() << 30
0010                   | (uint64_t)rand() << 15
0011                   | (uint64_t)rand()
0012                :  rand(); 
0013    return x % range;
0014 }
0015 static Rank dice(Rank lo, Rank hi) { return lo + dice(hi-lo); }
0016 static float dice(float range) { return rand() % (1000*(int)range) / (float)1000.; }
0017 static double dice(double range) { return rand() % (1000*(int)range) / (double)1000.; }
0018 static char dice() { return (char)(32 + rand() % 96); }