// Copyright © 2022 Youngmin Park. All rights reserved.
//#pragma GCC optimize("O3")
//#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<int>;
using pii = pair<int, int>;
using vpi = vector<pii>;
using pll = pair<ll, ll>;
using vl = vector<ll>;
using vpl = vector<pll>;
using ld = long double;
template <typename T, size_t SZ>
using ar = array<T, SZ>;
template <typename T>
using pqg = priority_queue<T, vector<T>, greater<T>>;
#define all(v) (v).begin(), (v).end()
#define pb push_back
#define sz(x) (int)(x).size()
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
constexpr int INF = 1e9;
constexpr ll LINF = 1e18;
const ld PI = acos((ld)-1.0);
constexpr int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T>
constexpr bool ckmin(T &a, const T &b) { return b < a ? a = b, 1 : 0; }
template <typename T>
constexpr bool ckmax(T &a, const T &b) { return b > a ? a = b, 1 : 0; }
template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p)
{
return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v)
{
os << '{';
string sep;
for (const T &x : v)
os << sep << x, sep = ", ";
return os << '}';
}
template <typename T>
ostream &operator<<(ostream &os, const deque<T> &v) {
os << vector<T>(all(v));
return os;
}
template <typename T, typename S, typename C>
ostream &operator<<(ostream &os, priority_queue<T, S, C> pq) {
vector<T> v;
while (sz(pq)) {
v.pb(pq.top());
pq.pop();
}
os << v;
return os;
}
void dbg_out()
{
cerr << "\033[0m" << endl;
}
template <typename Head, typename... Tail>
void dbg_out(Head H, Tail... T)
{
cerr << ' ' << H;
dbg_out(T...);
}
#ifdef LOCAL
#define dbg(...) cerr << "\033[1;35m(" << #__VA_ARGS__ << "):\033[33m", dbg_out(__VA_ARGS__)
#else
#define dbg(...) 42
#endif
inline namespace RecursiveLambda
{
template <typename Fun>
struct y_combinator_result
{
Fun fun_;
template <typename T>
explicit y_combinator_result(T &&fun) : fun_(forward<T>(fun)) {}
template <typename... Args>
decltype(auto) operator()(Args &&...args)
{
return fun_(ref(*this), forward<Args>(args)...);
}
};
template <typename Fun>
decltype(auto) y_combinator(Fun &&fun)
{
return y_combinator_result<decay_t<Fun>>(forward<Fun>(fun));
}
};
class Range {
struct Iter
{
int iter;
constexpr Iter(int it) noexcept : iter(it) {}
constexpr void operator++() noexcept { iter++; }
constexpr bool operator!=(const Iter &other) const noexcept { return iter != other.iter; }
constexpr int operator*() const noexcept { return iter; }
};
const Iter first, last;
public:
explicit constexpr Range(const int f, const int l) noexcept : first(f), last(max(f, l)) {}
constexpr Iter begin() const noexcept { return first; }
constexpr Iter end() const noexcept { return last; }
};
constexpr Range rep(const int l, const int r) noexcept { return Range(l, r); }
constexpr Range rep(const int n) noexcept { return Range(0, n); }
class ReversedRange {
struct Iter {
int itr;
constexpr Iter(const int pos) noexcept : itr(pos) {}
constexpr void operator++() noexcept { --itr; }
constexpr bool operator!=(const Iter& other) const noexcept { return itr != other.itr; }
constexpr int operator*() const noexcept { return itr; }
};
const Iter first, last;
public:
explicit constexpr ReversedRange(const int f, const int l) noexcept
: first(l - 1), last(min(f, l) - 1) {}
constexpr Iter begin() const noexcept { return first; }
constexpr Iter end() const noexcept { return last; }
};
constexpr ReversedRange per(const int l, const int r) noexcept { return ReversedRange(l, r); }
constexpr ReversedRange per(const int n) noexcept { return ReversedRange(0, n); }
/**
* Description: Dynamic Segment Tree with no lazy propagation
* Source: USACO Guide
* Verification:
* Time Complexity: O(log SZ) time & memory per query
*/
template <typename T> // change SZ accordingly
struct SparseSeg {
T val = T();
SparseSeg<T>* c[2];
SparseSeg() { c[0] = c[1] = nullptr; }
using V = ll;
static constexpr V SZ = 1LL << 5;
void upd(V ind, T v, V L = 0, V R = SZ) {
if (R - L == 1) {
val = val + v;
return;
}
V M = (L + R) / 2;
if (ind < M) {
if (!c[0]) c[0] = new SparseSeg();
c[0]->upd(ind, v, L, M);
}else{
if (!c[1]) c[1] = new SparseSeg();
c[1]->upd(ind, v, M, R);
}
val = T();
for (int i : rep(2)) if (c[i]) val = val + c[i]->val;
}
// T query(V lo, V hi, V L = 0, V R = SZ) {
// if (hi <= L || lo >= R) return T();
// if (lo <= L && R <= hi) return val;
// V M = (L + R) / 2;
// T res = T();
// if (c[0]) res = res + c[0]->query(lo, hi, L, M);
// if (c[1]) res = res + c[1]->query(lo, hi, M, R);
// return res;
// }
void parallelUpd(V ind, SparseSeg* c0, SparseSeg* c1, V L = 0, V R = SZ) {
if (R - L > 1) {
V M = (L + R) / 2;
if (ind < M) {
if (!c[0]) c[0] = new SparseSeg();
c[0]->parallelUpd(ind, c0 ? c0->c[0] : nullptr, c1 ? c1->c[0] : nullptr, L, M);
}else{
if (!c[1]) c[1] = new SparseSeg();
c[1]->parallelUpd(ind, c0 ? c0->c[1] : nullptr, c1 ? c1->c[1] : nullptr, L, M);
}
}
val = (c0 ? c0->val : T()) + (c1 ? c1->val : T());
}
bool query(ll sum, V L = 0, V R = SZ) {
if (R - L == 1) {
assert(val.cnt);
return L <= sum + 1;
}
bool lef = c[0] && c[0]->val.cnt;
bool rig = c[1] && c[1]->val.cnt;
V M = (L + R) / 2;
if (!lef && !rig) return true;
if (!lef) return c[1]->query(sum, M, R);
if (!rig) return c[0]->query(sum, L, M);
if (!c[0]->query(sum, L, M)) return false;
sum += c[0]->val.sum;
dbg(sum, L, R, c[0]->val.cnt);
return c[1]->query(sum, M, R);
}
};
struct Node {
ll sum;
int cnt;
Node(ll s = 0, int c = 0) : sum(s), cnt(c) {}
Node operator+(const Node& o) const {
return {sum + o.sum, cnt + o.cnt};
}
};
SparseSeg<Node> seg;
bool init(int N, ll M, ll coins[]) {
for (int i : rep(N)) {
seg.upd(coins[i], {coins[i], 1});
}
return seg.query(0);
}
bool is_happy(int event, int K, ll coins[]) {
for (int i : rep(K)) {
seg.upd(coins[i], {coins[i] * event, event});
}
dbg("HAHA");
return seg.query(0);
}
// const int N = 1000;
// ll a[N];
// ll b[N];
// void solve()
// {
// int n, m;
// cin >> n >> m;
// for (int i : rep(n)) cin >> a[i];
// cout << init(n, m, a) << '\n';
// int q;
// cin >> q;
// for (int i : rep(q)) {
// int e;
// cin >> e;
// int k;
// cin >> k;
// for (int J : rep(k)) cin >> b[J];
// cout << is_happy(e, k, b) << '\n';
// }
// }
// int main()
// {
// cin.tie(0)->sync_with_stdio(0);
// cin.exceptions(cin.failbit);
// int testcase = 1;
// // cin >> testcase;
// while (testcase--)
// {
// solve();
// }
// #ifdef LOCAL
// cerr << "Time elapsed: " << 1.0 * (double)clock() / CLOCKS_PER_SEC << " s.\n";
// #endif
// }
Compilation message
happiness.cpp: In function 'bool is_happy(int, int, ll*)':
happiness.cpp:80:18: warning: statement has no effect [-Wunused-value]
80 | #define dbg(...) 42
| ^~
happiness.cpp:235:2: note: in expansion of macro 'dbg'
235 | dbg("HAHA");
| ^~~
happiness.cpp: In instantiation of 'bool SparseSeg<T>::query(ll, SparseSeg<T>::V, SparseSeg<T>::V) [with T = Node; ll = long long int; SparseSeg<T>::V = long long int]':
happiness.cpp:229:20: required from here
happiness.cpp:80:18: warning: statement has no effect [-Wunused-value]
80 | #define dbg(...) 42
| ^~
happiness.cpp:209:3: note: in expansion of macro 'dbg'
209 | dbg(sum, L, R, c[0]->val.cnt);
| ^~~
grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
16 | long long max_code;
| ^~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Incorrect |
75 ms |
4284 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
