题解 | 大撒币

#include <iostream>
#include <string>
using namespace std;

static inline uint64_t splitmix64(uint64_t x) {
    x += 0x9e3779b97f4a7c15;
    x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
    x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
    return x ^ (x >> 31);
}

int main() {
    string s;
    getline(cin, s);
    hash<string> hash;
    unsigned long long seed = hash(s);
    unsigned long long rn = splitmix64(seed+3622223637);
    if (rn & 1) cout << "Alice";
    else cout << "Bob";
}