Submission #100103

#	Time	Username	Problem	Language	Result	Execution time	Memory
100103		SomeoneUnknown	Roller Coaster Railroad (IOI16_railroad)	C++14	0 / 100	2009 ms	4240 KiB

railroad

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

long long plan_roller_coaster(vector<int> s, vector<int> t) {
    long long tal = 0;
    int p2[s.size()];
    for(int i = 0; i < s.size(); i++){
        p2[i] = i;
    }
    do{
        long long p = 1;
        long long subtal = 0;
        for(int i = 0; i < s.size(); i++){
            subtal += max(0LL, p-s[p2[i]]);
            p = t[p2[i]];
        }
        tal = max(tal, subtal);
    }while(next_permutation(p2, p2+s.size()));
    return tal;
}

Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:8:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < s.size(); i++){
                    ~~^~~~~~~~~~
railroad.cpp:14:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < s.size(); i++){
                        ~~^~~~~~~~~~

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