結果
| 問題 |
No.783 門松計画
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2017-07-01 12:41:30 |
| 言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 28 ms / 2,000 ms |
| コード長 | 4,934 bytes |
| コンパイル時間 | 12,158 ms |
| コンパイル使用メモリ | 274,808 KB |
| 最終ジャッジ日時 | 2025-01-05 00:58:29 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
| 純コード判定しない問題か言語 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 27 |
コンパイルメッセージ
main.cpp: In member function '{anonymous}::MaiScanner& {anonymous}::MaiScanner::operator>>(std::string&)':
main.cpp:72:9: warning: no return statement in function returning non-void [-Wreturn-type]
72 | }
| ^
ソースコード
#pragma GCC optimize ("O3")
#pragma GCC target ("avx")
#include "bits/stdc++.h" // define macro "/D__MAI"
using namespace std;
typedef long long int ll;
#define debugv(v) printf("L%d %s => ",__LINE__,#v);for(auto e:v){cout<<e<<" ";}cout<<endl;
#define debugm(m) printf("L%d %s is..\n",__LINE__,#m);for(auto v:m){for(auto e:v){cout<<e<<" ";}cout<<endl;}
#define debuga(m,w) printf("L%d %s is => ",__LINE__,#m);for(int x=0;x<(w);x++){cout<<(m)[x]<<" ";}cout<<endl;
#define debugaa(m,w,h) printf("L%d %s is..\n",__LINE__,#m);for(int y=0;y<(h);y++){for(int x=0;x<(w);x++){cout<<(m)[x][y]<<" ";}cout<<endl;}
#define debugaar(m,w,h) printf("L%d %s is..\n",__LINE__,#m);for(int y=0;y<(h);y++){for(int x=0;x<(w);x++){cout<<(m)[y][x]<<" ";}cout<<endl;}
#define ALL(v) (v).begin(),(v).end()
#define repeat(l) for(auto cnt=0;cnt<(l);++cnt)
#define iterate(b,e) for(auto cnt=(b);cnt!=(e);++cnt)
#define MD 1000000007ll
#define PI 3.1415926535897932384626433832795
template<typename T1, typename T2>
ostream& operator <<(ostream &o, const pair<T1, T2> p) { o << "(" << p.first << ":" << p.second << ")"; return o; }
#define TIME chrono::system_clock::now()
#define MILLISEC(t) (chrono::duration_cast<chrono::milliseconds>(t).count())
namespace {
std::chrono::system_clock::time_point ttt;
void tic() { ttt = TIME; }
void toc() { fprintf(stderr, "TIME : %lldms\n", MILLISEC(TIME - ttt)); }
std::chrono::system_clock::time_point tle = TIME;
#ifdef __MAI
void safe_tle(int msec) { assert(MILLISEC(TIME - tle) < msec); }
#else
#define safe_tle(k) ;
#endif
}
#ifdef __MAI
#define getchar_unlocked getchar
#define putchar_unlocked putchar
#endif
#ifdef __VSCC
#define getchar_unlocked _getchar_nolock
#define putchar_unlocked _putchar_nolock
#endif
namespace {
#define isvisiablechar(c) (0x21<=(c)&&(c)<=0x7E)
class MaiScanner {
public:
template<typename T>
void input_integer(T& var) {
var = 0;
T sign = 1;
int cc = getchar_unlocked();
for (; cc<'0' || '9'<cc; cc = getchar_unlocked())
if (cc == '-') sign = -1;
for (; '0' <= cc&&cc <= '9'; cc = getchar_unlocked())
var = (var << 3) + (var << 1) + cc - '0';
var = var*sign;
}
inline int c() { return getchar_unlocked(); }
inline MaiScanner& operator>>(int& var) {
input_integer<int>(var);
return *this;
}
inline MaiScanner& operator>>(long long& var) {
input_integer<long long>(var);
return *this;
}
inline MaiScanner& operator>>(string& var) {
int cc = getchar_unlocked();
for (; !isvisiablechar(cc); cc = getchar_unlocked());
for (; isvisiablechar(cc); cc = getchar_unlocked())
var.push_back(cc);
}
};
}
MaiScanner scanner;
// -----------------------------------------------------------------------
// ここから!
// -----------------------------------------------------------------------
inline bool kadomatu(int a, int b, int c) {
return (a != c) && ((a<b&&b>c) || (a>b&&b<c));
}
int n, cap;
int price[111], len[111];
// TODO: N<3を得てしまうので,個数を数えてごまかす
// TODO: 落とせるかも?
//
int dfs(int cost = 0, int pre = 0, int prepre = 0) {
static unordered_map<int, int> dp;
int key = (cost << 24) | (pre << 8) | prepre;
if (dp.count(key)) return dp[key];
int best = 0;
for (int i = 0; i < n; ++i) {
if (cost + price[i] > cap) continue;
if (prepre == 0 || kadomatu(len[i], pre, prepre)) {
best = max(best, dfs(cost + price[i], len[i], pre) + len[i]);
}
}
return best;
}
int dp[51][51][51];
int main() {
scanner >> n >> cap;
repeat(n) {
scanner >> len[cnt];
}
repeat(n) {
scanner >> price[cnt];
}
// cout << dfs() << endl;
int result = 0;
for (int i = 0; i < n; ++i) {
if (price[i] <= cap)
dp[price[i]][len[i]][0] = len[i];
}
for (int cost = 0; cost < cap; ++cost) {
for (int pre = 0; pre <= 50; ++pre) {
for (int prepre = 0; prepre <= 50; ++prepre) {
for (int i = 0; i < n; ++i) {
if (cost + price[i] > cap) continue;
if (dp[cost][pre][prepre] == 0) continue;
if (prepre == 0 || kadomatu(len[i], pre, prepre)) {
dp[cost + price[i]][len[i]][pre]
= max(
dp[cost + price[i]][len[i]][pre],
dp[cost][pre][prepre] + len[i]);
if (prepre != 0)
result = max(result, dp[cost + price[i]][len[i]][pre]);
}
}
}
}
}
cout << result << endl;
return 0;
}