[0,x)的随机数

 

#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cstring>
#include <time.h>
#include <string>
#include <set>
#include <map>
#include <list>
#include <stack>
#include <queue>
#include <vector>
#include <bitset>
#include <ext/rope>
#include <algorithm>
#include <iostream>
using namespace std;
#define ll long long
#define minv 1e-6
#define inf 1e9
#define pi 3.1415926536
#define nl 2.7182818284
const ll mod=1e9+7;//998244353
const int maxn=1e5+10;


int main()
{
    int x=300000,y,n,t=100;
    srand(time(NULL));
    y=x/32768+1;///+1
    //[0,y)*32768+[0,32768)
    while (t--)
    {
        while (( n = rand()%y*32768 + rand() )>=x);
        printf("%d\n",n);
    }
    return 0;
}