結果
| 問題 |
No.137 貯金箱の焦り
|
| コンテスト | |
| ユーザー |
だれ
|
| 提出日時 | 2025-08-05 14:29:02 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 210 ms / 5,000 ms |
| コード長 | 6,195 bytes |
| コンパイル時間 | 3,728 ms |
| コンパイル使用メモリ | 224,740 KB |
| 実行使用メモリ | 7,720 KB |
| 最終ジャッジ日時 | 2025-08-05 14:29:09 |
| 合計ジャッジ時間 | 6,287 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 23 |
ソースコード
#include <algorithm>
#include <bitset>
#include <cassert>
#include <cmath>
#include <complex>
#include <cstdio>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <unordered_set>
using namespace std;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
#endif
#define GET_MACRO(_1, _2, _3, NAME, ...) NAME
#define _rep(i, n) _rep2(i, 0, n)
#define _rep2(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define rep(...) GET_MACRO(__VA_ARGS__, _rep2, _rep)(__VA_ARGS__)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define UNIQUE(x) \
std::sort((x).begin(), (x).end()); \
(x).erase(std::unique((x).begin(), (x).end()), (x).end())
using i64 = long long;
using u64 = unsigned long long;
using u32 = unsigned int;
using i32 = int;
using ld = long double;
using f64 = double;
template <class T, class U>
bool chmin(T& a, const U& b) {
return (b < a) ? (a = b, true) : false;
}
template <class T, class U>
bool chmax(T& a, const U& b) {
return (b > a) ? (a = b, true) : false;
}
template <class T = std::string, class U = std::string>
inline void YesNo(bool f = 0, const T yes = "Yes", const U no = "No") {
if (f)
std::cout << yes << "\n";
else
std::cout << no << "\n";
}
namespace io {
template <class T, class U>
istream& operator>>(istream& i, pair<T, U>& p) {
i >> p.first >> p.second;
return i;
}
template <class T, class U>
ostream& operator<<(ostream& o, pair<T, U>& p) {
o << p.first << " " << p.second;
return o;
}
template <typename T>
istream& operator>>(istream& i, vector<T>& v) {
rep(j, v.size()) i >> v[j];
return i;
}
template <typename T>
string join(vector<T>& v) {
stringstream s;
rep(i, v.size()) s << ' ' << v[i];
return s.str().substr(1);
}
template <typename T>
ostream& operator<<(ostream& o, vector<T>& v) {
if (v.size()) o << join(v);
return o;
}
template <typename T>
string join(vector<vector<T>>& vv) {
string s = "\n";
rep(i, vv.size()) s += join(vv[i]) + "\n";
return s;
}
template <typename T>
ostream& operator<<(ostream& o, vector<vector<T>>& vv) {
if (vv.size()) o << join(vv);
return o;
}
void OUT() { std::cout << "\n"; }
template <class Head, class... Tail>
void OUT(Head&& head, Tail&&... tail) {
std::cout << head;
if (sizeof...(tail)) std::cout << ' ';
OUT(std::forward<Tail>(tail)...);
}
void OUTL() { std::cout << std::endl; }
template <class Head, class... Tail>
void OUTL(Head&& head, Tail&&... tail) {
std::cout << head;
if (sizeof...(tail)) std::cout << ' ';
OUTL(std::forward<Tail>(tail)...);
}
void IN() {}
template <class Head, class... Tail>
void IN(Head&& head, Tail&&... tail) {
cin >> head;
IN(std::forward<Tail>(tail)...);
}
} // namespace io
using namespace io;
namespace useful {
long long modpow(long long a, long long b, long long mod) {
long long res = 1;
while (b) {
if (b & 1) res *= a, res %= mod;
a *= a;
a %= mod;
b >>= 1;
}
return res;
}
bool is_pow2(long long x) { return x > 0 && (x & (x - 1)) == 0; }
template <class T>
void rearrange(vector<T>& a, vector<int>& p) {
vector<T> b = a;
for (int i = 0; i < int(a.size()); i++) {
a[i] = b[p[i]];
}
return;
}
template <std::forward_iterator I>
std::vector<std::pair<typename std::iterator_traits<I>::value_type, int>>
run_length_encoding(I s, I t) {
if (s == t) return {};
std::vector<std::pair<typename std::iterator_traits<I>::value_type, int>>
res;
res.emplace_back(*s, 1);
for (auto it = ++s; it != t; it++) {
if (*it == res.back().first)
res.back().second++;
else
res.emplace_back(*it, 1);
}
return res;
}
vector<int> linear_sieve(int n) {
vector<int> primes;
vector<int> res(n + 1);
iota(all(res), 0);
for (int i = 2; i <= n; i++) {
if (res[i] == i) primes.emplace_back(i);
for (auto j : primes) {
if (j * i > n) break;
res[j * i] = j;
}
}
return res;
// return primes;
}
template <class T>
vector<long long> dijkstra(vector<vector<pair<int, T>>>& graph, int start) {
int n = graph.size();
vector<long long> res(n, 2e18);
res[start] = 0;
priority_queue<pair<long long, int>, vector<pair<long long, int>>,
greater<pair<long long, int>>>
que;
que.push({0, start});
while (!que.empty()) {
auto [c, v] = que.top();
que.pop();
if (res[v] < c) continue;
for (auto [nxt, cost] : graph[v]) {
auto x = c + cost;
if (x < res[nxt]) {
res[nxt] = x;
que.push({x, nxt});
}
}
}
return res;
}
} // namespace useful
using namespace useful;
template <class T, T l, T r>
struct RandomIntGenerator {
std::random_device seed;
std::mt19937_64 engine;
std::uniform_int_distribution<T> uid;
RandomIntGenerator() {
engine = std::mt19937_64(seed());
uid = std::uniform_int_distribution<T>(l, r);
}
T gen() { return uid(engine); }
};
using mint = atcoder::static_modint<1234567891>;
// using mint = i64;
int main() {
std::cout << fixed << setprecision(15);
cin.tie(nullptr);
ios::sync_with_stdio(false);
int n;
i64 m;
IN(n, m);
vector<i64> a(n);
IN(a);
i64 s = accumulate(all(a), 0ll);
vector<mint> dp(s * 2 + 1);
dp[0] = 1;
while (m) {
rep(i, n) {
auto ndp = dp;
rep(j, s * 2 + 1) {
if (j + a[i] <= s * 2) ndp[j + a[i]] += dp[j];
}
swap(dp, ndp);
}
// OUT(dp);
if (m & 1) {
rep(i, s * 2 + 1) { dp[i / 2] = dp[i]; }
} else {
rep(i, s * 2 + 1) { dp[(i + 1) / 2] = dp[i]; }
}
rep(i, s, s * 2 + 1) dp[i] = 0;
m >>= 1;
// OUT(dp);
}
OUT(dp[0].val());
// OUT(dp[0]);
}
だれ