結果
| 問題 |
No.974 最後の日までに
|
| コンテスト | |
| ユーザー |
omochana2
|
| 提出日時 | 2020-01-22 00:13:40 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,584 bytes |
| コンパイル時間 | 1,594 ms |
| コンパイル使用メモリ | 171,996 KB |
| 実行使用メモリ | 24,188 KB |
| 最終ジャッジ日時 | 2024-07-06 13:17:04 |
| 合計ジャッジ時間 | 7,673 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 36 WA * 13 |
ソースコード
#include <bits/stdc++.h>
#define ADD(a, b) a = (a + ll(b)) % mod
#define MUL(a, b) a = (a * ll(b)) % mod
#define MAX(a, b) a = max(a, b)
#define MIN(a, b) a = min(a, b)
#define rep(i, a, b) for(int i = int(a); i < int(b); i++)
#define rer(i, a, b) for(int i = int(a) - 1; i >= int(b); i--)
#define all(a) (a).begin(), (a).end()
#define sz(v) (int)(v).size()
#define pb push_back
#define sec second
#define fst first
#define debug(fmt, ...) Debug(__LINE__, ":", fmt, ##__VA_ARGS__)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef pair<int, pi> ppi;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<vl> mat;
typedef complex<double> comp;
void Debug() {cerr << '\n'; }
template<class FIRST, class... REST>void Debug(FIRST arg, REST... rest){
cerr<<arg<<" ";Debug(rest...);}
template<class T>ostream& operator<<(ostream& out,const vector<T>& v) {
out<<"[";if(!v.empty()){rep(i,0,sz(v)-1)out<<v[i]<<", ";out<<v.back();}out<<"]";return out;}
template<class S, class T>ostream& operator<<(ostream& out,const pair<S, T>& v){
out<<"("<<v.first<<", "<<v.second<<")";return out;}
const int MAX_N = 500010;
const int MAX_V = 100010;
const double eps = 1e-6;
const ll mod = 1000000007;
const int inf = (1 << 30) - 1;
const ll linf = 1LL << 60;
const double PI = 3.14159265358979323846;
mt19937 rng; //use it by rng() % mod, shuffle(all(vec), rng)
///////////////////////////////////////////////////////////////////////////////////////////////////
int NN, NL, NR;
ll A[MAX_N], B[MAX_N], C[MAX_N];
vi vx;
void loop(int at, int one, int bit, int n) {
if(at == n) {
vx.pb(bit);
return;
}
if(one) {
loop(at + 1, 0, bit | (1 << at), n);
}
else {
rep(i, at + 1, n + 1) {
loop(i, 1, bit, n);
}
}
}
int dp[MAX_N][2];
void solve() {
cin >> NN;
rep(i, 0, NN) cin >> A[i] >> B[i] >> C[i];
NL = (NN + 1) / 2; NR = NN - NL;
vx.clear();
vi vxl, vxr;
loop(0, 0, 0, NL);
vxl = vx;
vx.clear();
loop(0, 0, 0, NR);
loop(0, 1, 0, NR);
vxr = vx;
vector<pl> D, E;
rep(i, 0, sz(vxl)) {
rep(k, 0, 2) {
int bit = vxl[i];
if(k) bit |= (1 << NL);
ll a = 0, b = 0;
rep(i, 0, NL) {
if(!(bit & (1 << i)) && !(bit & (1 << (i + 1)))) {
a += A[i];
}
if(bit & (1 << i)) {
a -= C[i];
b += B[i];
}
}
if(k) D.pb(pl(a, b));
else E.pb(pl(a, b));
}
}
D.pb(pl(linf, -linf));
E.pb(pl(linf, -linf));
sort(all(D));
sort(all(E));
rer(i, sz(D), 1) MAX(D[i - 1].sec, D[i].sec);
rer(i, sz(E), 1) MAX(E[i - 1].sec, E[i].sec);
// debug(D, E);
ll res = 0;
rep(i, 0, sz(vxr)) {
int bit = vxr[i];
ll a = 0, b = 0;
rep(i, 0, NR) {
if(!(bit & (1 << i)) && !(bit & (1 << (i + 1)))) {
a += A[i + NL];
}
else if(bit & (1 << i)) {
a -= C[i + NL];
b += B[i + NL];
}
}
if(bit & 1) {
pl p = *lower_bound(all(D), pl(a * -1, -linf));
MAX(res, b + p.sec);
}
else {
pl p = *lower_bound(all(E), pl(a * -1, -linf));
MAX(res, b + p.sec);
}
}
cout << res << "\n";
}
uint32_t rd() {
uint32_t res;
#ifdef __MINGW32__
asm volatile("rdrand %0" :"=a"(res) ::"cc");
#else
res = std::random_device()();
#endif
return res;
}
int main() {
#ifndef LOCAL
ios::sync_with_stdio(false);
cin.tie(0);
#endif
cout << fixed;
cout.precision(20);
cerr << fixed;
cerr.precision(6);
rng.seed(rd());
#ifdef LOCAL
//freopen("in.txt", "wt", stdout); //for tester
if(!freopen("in.txt", "rt", stdin)) return 1;
#endif
solve();
cerr << "Time: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
return 0;
}
omochana2