Submission #1080585

#	Time	Username	Problem	Language	Result	Execution time	Memory
1080585		ALeonidou	Roller Coaster Railroad (IOI16_railroad)	C++17	11 / 100	2044 ms	12112 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define F first
#define S second
#define pb push_back
#define sz(x) (ll)x.size()

typedef vector <ll> vi;
typedef pair<ll,ll> ii;
typedef vector <ii> vii;

#define dbg(x) cout<<#x<<": "<<x<<endl;
#define dbg2(x,y) cout<<#x<<": "<<x<<" "<<#y<<": "<<y<<endl;
#define dbg3(x,y,z) cout<<#x<<": "<<x<<" "<<#y<<": "<<y<<" "<<#z<<": "<<z<<endl;

void printVct(vi &v){
    for (ll i =0; i<sz(v); i++){
        cout<<v[i]<<" ";
    }
    cout<<endl;
}

#define INF 1000000000000000000

ll plan_roller_coaster(vector <int> ss, vector<int> tt) {
    ll n = sz(ss);
    ll n2 = (1 << n);
    vi s(n), t(n);
    for(ll i =0; i<n; i++){
        s[i] = ss[i];
        t[i] = tt[i];
    }
    // printVct(t);
    // printVct(s);

    ll ans = INF;
    vi v(n);
    for (ll i =0; i<n; i++) v[i] = i;
    do{
        ll c = 0;
        ll x = 1;
        for (ll i =0; i<n; i++){
            ll idx = v[i];
            // dbg3(idx, c, x);
            // dbg2(s[idx], t[idx]);
            if (x > s[idx]){
                c += x-s[idx];
            }
            x = t[idx];
        }
        // printVct(v);
        // dbg(c);
        ans = min(ans, c);
    }while (next_permutation(v.begin(), v.end()));
    return ans;
}

/*
4 1
1 7
4 3
5 8
6 6

*/

Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:31:8: warning: unused variable 'n2' [-Wunused-variable]
   31 |     ll n2 = (1 << n);
      |        ^~

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