Submission #1025036

#	Time	Username	Problem	Language	Result	Execution time	Memory
1025036		slivajan	Roller Coaster Railroad (IOI16_railroad)	C++17	11 / 100	28 ms	7240 KiB

railroad

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

typedef long long un;
typedef vector<un> vuc;


#define REP(i, a, b) for(un i = a; i < b; i++)
#define FEAC(i, a) for (auto&& i : a)
#define vec vector
#define ALL(x) (x).begin(), (x).end()

constexpr un INF = INT64_MAX;

un compute(vec<int> s, vec<int> t, un N, vuc perm){

    un ret = 0;

    REP(i, 0, N-1){
        ret += max(0, t[perm[i]] - s[perm[i+1]]);
    }

    return ret;
}


long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    un N = (un) s.size();
    

    if (N > 8) return 0;

    vuc perm(N);
    iota(ALL(perm), 0);


    un ret = INF;

    do{
        ret = min(ret, compute(s, t, N, perm));
    } while(next_permutation(ALL(perm)));

    return ret;
}

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