Submission #1219829

#	Time	Username	Problem	Language	Result	Execution time	Memory
1219829		LIA	Roller Coaster Railroad (IOI16_railroad)	C++17	11 / 100	2095 ms	11332 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef tuple <ll,ll,ll> plll;
typedef vector <plll> vplll;
typedef pair <ll,ll> pll;
typedef vector <ll> vll;
typedef vector <pll> vpll;
typedef vector <vector <pll>> vvpll;
typedef vector <vector <ll>> vvll;
typedef vector <bool> vb;
typedef vector <vector <bool>> vvb;
#define loop(i, s, e) for (ll i = (s); i < (e); ++i)
#define loopr(i, e, s) for (ll i = (e)-1; i >= (s); --i)
#define all(a) a.begin(), a.end()
const ll inf = 1e18;

vpll d;
ll n;
vll f;
ll calc() {
    vpll on(n);
    loop(i,0,n) {
        on[i] = d[f[i]];
    }
    ll ans = 0;
    ll endi = 1;
    loop(i,0,n) {
        if (endi <=0) return inf;
        ll s = on[i].first , e = on[i].second;
        if (endi > s) {
            ans+=endi-s;
        }
        endi = e;
    }
    return ans;
}
long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    n = s.size();
    d.resize(n);
    loop(i,0,n) {
        d[i] = {s[i], t[i]};
    }
    f.resize(n);
    loop(i,0,n) f[i] = i;
    ll ans= calc();
    while (next_permutation(all(f))) {
        ans = min(ans, calc());
    }
    return ans;
}

Compilation message (stderr)

railroad.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
railroad_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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