제출 #333612

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
333612		MarcoMeijer	Roller Coaster Railroad (IOI16_railroad)	C++14	0 / 100	78 ms	26604 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;

// macros
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> lll;
typedef tuple<int, int, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<iii> viii;
typedef vector<ll> vll;
typedef vector<lll> vlll;
#define REP(a,b,c) for(int a=int(b); a<int(c); a++)
#define RE(a,c) REP(a,0,c)
#define RE1(a,c) REP(a,1,c+1)
#define REI(a,b,c) REP(a,b,c+1)
#define REV(a,b,c) for(int a=int(c-1); a>=int(b); a--)
#define FOR(a,b) for(auto& a : b)
#define all(a) a.begin(), a.end()
#define INF 1e9
#define EPS 1e-9
#define pb push_back
#define popb pop_back
#define fi first
#define se second
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

const int MX=16, BIT=(1<<MX);

int n;
ll dp[MX][BIT];
vi s, t;

ll getAns(int x, int bm) {
    if(dp[x][bm] != -1) return dp[x][bm];

    if(bm == (1<<n)-1) return dp[x][bm]=0;

    ll res=INF;
    RE(i,n) if((bm&(1<<i))==0) {
        res = min(res, max(0,t[x]-s[i])+getAns(i,bm|(1<<i)));
    }
    return dp[x][bm]=res;
}

ll plan_roller_coaster(vi S, vi T) {
    n = S.size();
    s=S; t=T;
    RE(i,MX) RE(j,BIT) dp[i][j]=-1;

    ll res=INF;
    RE(i,n) res=min(res, getAns(i,(1<<i)));
    return res;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 23
• Subtask 3: 0 / 30
• Subtask 4: 0 / 36