結果

問題 No.1606 Stuffed Animals Keeper
ユーザー Fukucchi
提出日時 2021-07-17 00:04:33
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 25 ms / 3,000 ms
コード長 9,236 bytes
コンパイル時間 1,654 ms
コンパイル使用メモリ 130,544 KB
実行使用メモリ 25,472 KB
最終ジャッジ日時 2024-07-06 11:40:29
合計ジャッジ時間 2,903 ms
ジャッジサーバーID
(参考情報)
judge1 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 48
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ソースコード

diff #
プレゼンテーションモードにする

/* #region header */
#pragma GCC optimize("O3") //
#ifdef LOCAL
#define _GLIBCXX_DEBUG //[]
#endif
#define _USE_MATH_DEFINES
#include <algorithm> //sort,,
#include <bitset> //bit
// #include <boost/multiprecision/cpp_dec_float.hpp>
// #include <boost/multiprecision/cpp_int.hpp>
#include <cassert> //assert(p)not p
#include <cctype>
#include <chrono> //
#include <climits>
#include <cmath> //pow,log
#include <complex> //
#include <cstdio>
#include <cstring>
#include <deque>
#include <functional> //sortgreater
#include <iomanip> //setprecision()
#include <ios> // std::left, std::right
#include <iostream> //
#include <iterator> //(,,)
#include <map>
#include <numeric> //iota(),gcdlcm,accumulate
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility> //pair
#include <vector>
using namespace std;
typedef long long LL;
typedef long double LD;
#define ALL(x) x.begin(), x.end()
const long long INF = numeric_limits<long long>::max() / 4;
const int MOD = 1e9 + 7;
// const int MOD=998244353;
//
#define FF first
#define SS second
#define int long long
#define stoi stoll
#define LD long double
#define PII pair<int, int>
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define SZ(x) (int)((x).size())
#define VB vector<bool>
#define VVB vector<vector<bool>>
#define VI vector<int>
#define VVI vector<vector<int>>
#define REP(i, n) for (int i = 0; i < (int)(n); i++)
#define REPD(i, n) for (int i = (int)(n) - (int)1; i >= 0; i--)
#define FOR(i, a, b) for (int i = a; i < (int)(b); i++)
#define FORD(i, a, b) for (int i = (int)(b) - (int)1; i >= (int)a; i--)
const int dx[4] = {0, 1, 0, -1}, dy[4] = {-1, 0, 1, 0};
const int Dx[8] = {0, 1, 1, 1, 0, -1, -1, -1},
Dy[8] = {-1, -1, 0, 1, 1, 1, 0, -1};
int in() {
int x;
cin >> x;
return x;
}
// https://qiita.com/Lily0727K/items/06cb1d6da8a436369eed#c%E3%81%A7%E3%81%AE%E5%AE%9F%E8%A3%85
void print() { cout << "\n"; }
template <class Head, class... Tail> void print(Head &&head, Tail &&...tail) {
cout << head;
if (sizeof...(tail) != 0)
cout << " ";
print(forward<Tail>(tail)...);
}
template <class T> void print(vector<T> &vec) {
for (auto &a : vec) {
cout << a;
if (&a != &vec.back())
cout << " ";
}
cout << "\n";
}
template <class T> void print(set<T> &set) {
for (auto &a : set) {
cout << a << " ";
}
cout << "\n";
}
template <class T> void print(vector<vector<T>> &df) {
for (auto &vec : df) {
print(vec);
}
}
// debug macro
// https://atcoder.jp/contests/abc202/submissions/22815715
namespace debugger {
template <class T> void view(const std::vector<T> &a) {
std::cerr << "{ ";
for (const auto &v : a) {
std::cerr << v << ", ";
}
std::cerr << "\b\b }";
}
template <class T> void view(const std::vector<std::vector<T>> &a) {
std::cerr << "{\n";
for (const auto &v : a) {
std::cerr << "\t";
view(v);
std::cerr << "\n";
}
std::cerr << "}";
}
template <class T, class U> void view(const std::vector<std::pair<T, U>> &a) {
std::cerr << "{\n";
for (const auto &p : a)
std::cerr << "\t(" << p.first << ", " << p.second << ")\n";
std::cerr << "}";
}
template <class T, class U> void view(const std::map<T, U> &m) {
std::cerr << "{\n";
for (const auto &p : m)
std::cerr << "\t[" << p.first << "] : " << p.second << "\n";
std::cerr << "}";
}
template <class T, class U> void view(const std::pair<T, U> &p) {
std::cerr << "(" << p.first << ", " << p.second << ")";
}
template <class T> void view(const std::set<T> &s) {
std::cerr << "{ ";
for (auto &v : s) {
view(v);
std::cerr << ", ";
}
std::cerr << "\b\b }";
}
template <class T> void view(const T &e) { std::cerr << e; }
} // namespace debugger
#ifdef LOCAL
void debug_out() {}
template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) {
debugger::view(H);
std::cerr << ", ";
debug_out(T...);
}
#define debug(...) \
do { \
std::cerr << __LINE__ << " [" << #__VA_ARGS__ << "] : ["; \
debug_out(__VA_ARGS__); \
std::cerr << "\b\b]\n"; \
} while (false)
#else
#define debug(...) (void(0))
#endif
long long power(long long x, long long n) {
// O(logn)
// https://algo-logic.info/calc-pow/#toc_id_1_2
long long ret = 1;
while (n > 0) {
if (n & 1)
ret *= x; // n bit 1 x^(2^i)
x *= x;
n >>= 1; // n 1bit
}
return ret;
}
// @brief nCr. O(r log n) O(n), O(1) modint
// bc
int comb(int n, int r) {
// https://www.geeksforgeeks.org/program-to-calculate-the-value-of-ncr-efficiently/
if (n < r)
return 0;
// p holds the value of n*(n-1)*(n-2)...,
// k holds the value of r*(r-1)...
long long p = 1, k = 1;
// C(n, r) == C(n, n-r),
// choosing the smaller value
if (n - r < r)
r = n - r;
if (r != 0) {
while (r) {
p *= n;
k *= r;
// gcd of p, k
long long m = __gcd(p, k);
// dividing by gcd, to simplify
// product division by their gcd
// saves from the overflow
p /= m;
k /= m;
n--;
r--;
}
// k should be simplified to 1
// as C(n, r) is a natural number
// (denominator should be 1 ) .
}
else
p = 1;
// if our approach is correct p = ans and k =1
return p;
}
// MOD
void add(long long &a, long long b) {
a += b;
if (a >= MOD)
a -= MOD;
}
template <class T> inline bool chmin(T &a, T b) {
if (a > b) {
a = b;
return true;
}
return false;
}
template <class T> inline bool chmax(T &a, T b) {
if (a < b) {
a = b;
return true;
}
return false;
}
//
long long ceildiv(long long a, long long b) {
if (b < 0)
a = -a, b = -b;
if (a >= 0)
return (a + b - 1) / b;
else
return a / b;
}
long long floordiv(long long a, long long b) {
if (b < 0)
a = -a, b = -b;
if (a >= 0)
return a / b;
else
return (a - b + 1) / b;
}
long long floorsqrt(long long x) {
assert(x >= 0);
long long ok = 0;
long long ng = 1;
while (ng * ng <= x)
ng <<= 1;
while (ng - ok > 1) {
long long mid = (ng + ok) >> 1;
if (mid * mid <= x)
ok = mid;
else
ng = mid;
}
return ok;
}
// @brief a^n mod mod
long long modpower(long long a, long long n, long long mod) {
long long res = 1;
while (n > 0) {
if (n & 1)
res = res * a % mod;
a = a * a % mod;
n >>= 1;
}
return res;
}
// @brief s c
template <class T> bool contain(const std::string &s, const T &c) {
return s.find(c) != std::string::npos;
}
__attribute__((constructor)) void faster_io() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cerr.tie(nullptr);
}
/* #endregion */
int n;
bool check(vector<PII> &B) {
REP(ni, SZ(B)) {
if (B[ni].FF != 0 and B[ni].SS != 0)
return false;
}
return true;
}
signed main() {
cin >> n;
VI A(n);
REP(ni, n) { cin >> A[ni]; }
int now0 = 0, now1 = 0;
vector<PII> B;
REP(ni, n) {
if (A[ni] == 0)
now0++;
else if (A[ni] == 1)
now1++;
else {
if (!(now0 == 0 and now1 == 0)) {
B.PB(MP(now0, now1));
now0 = 0, now1 = 0;
}
}
}
if (!(now0 == 0 and now1 == 0)) {
B.PB(MP(now0, now1));
}
int m = SZ(B);
int zero = 0;
REP(mi, m) { zero += B[mi].FF; }
// dp[i][S]:= i 0 S
//
VVI dp(m + 1, VI(zero + 1, INF));
dp[0][0] = 0;
REP(mi, m) {
// B[mi] 0
int plus_len = B[mi].FF + B[mi].SS;
REP(zi, zero + 1) {
if (zi + plus_len > zero)
break;
chmin(dp[mi + 1][zi + plus_len], dp[mi][zi] + B[mi].SS);
}
// 1
REP(zi, zero + 1) { chmin(dp[mi + 1][zi], dp[mi][zi]); }
}
int ans = dp[m][zero];
if (ans == INF) {
print(-1);
exit(0);
}
print(ans);
return 0;
}
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