113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
#include <iostream>
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#include <algorithm>
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#include <vector>
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#include <cstdint>
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#define let auto
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#define fn auto
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#define usize size_t
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using u32 = uint32_t;
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using namespace std;
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const u32 KX = 123456789;
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const u32 KY = 362436069;
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const u32 KZ = 521288629;
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const u32 KW = 88675123;
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fn fastio() {
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ios::sync_with_stdio(false);
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cin.tie(nullptr);
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}
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struct Rand {
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u32 x, y, z, w;
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static Rand new_seed(u32 seed) {
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return {KX ^ seed, KY ^ seed, KZ, KW};
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}
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u32 rand() {
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u32 t = x ^ (x << 11);
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x = y;
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y = z;
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z = w;
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w ^= (w >> 19) ^ t ^ (t >> 8);
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return w;
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}
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template<typename T>
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void shuffle(vector<T>& a) {
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if (a.empty()) return;
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usize i = a.size() - 1;
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while (i > 0) {
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usize j = rand() % (i + 1);
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swap(a[i], a[j]);
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i--;
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}
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}
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u32 rand_range(u32 a, u32 b) {
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u32 m = b - a + 1;
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return a + rand() % m;
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}
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double rand_float() {
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return static_cast<double>(rand()) / static_cast<double>((u32)-1);
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}
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};
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fn main() -> int {
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fastio();
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istreambuf_iterator<char> it(cin), end;
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string temp(it, end);
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vector<u32> vals;
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usize pos = 0;
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while (pos < temp.size()) {
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while (pos < temp.size() && isspace(temp[pos])) pos++;
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if (pos >= temp.size()) break;
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usize start = pos;
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while (pos < temp.size() && !isspace(temp[pos])) pos++;
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vals.push_back(stoul(temp.substr(start, pos - start)));
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}
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auto it2 = vals.begin();
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u32 n = *it2++;
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u32 m = *it2++;
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vector<tuple<u32, u32, u32, u32, u32>> requests;
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for (u32 i = 0; i < m; i++) {
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u32 w = *it2++ - 1;
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u32 x = *it2++ - 1;
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u32 y = *it2++ - 1;
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u32 z = *it2++ - 1;
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u32 k = *it2++;
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requests.emplace_back(w, x, y, z, k);
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}
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u32 trial = 0;
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while (true) {
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Rand rand = Rand::new_seed(trial);
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vector<u32> music(n);
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for (u32 i = 0; i < n; i++) {
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music[i] = rand.rand_range(0, 3);
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}
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u32 cnt = 0;
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for (const auto& req : requests) {
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u32 w, x, y, z, k;
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tie(w, x, y, z, k) = req;
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if ((music[w] + music[x] + music[y] + music[z]) % 4 == k) {
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cnt++;
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}
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}
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if (m / 4 <= cnt) {
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for (u32 a : music) {
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cout << a << ' ';
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}
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break;
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}
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trial++;
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}
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return 0;
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} |