Submission #1107039

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107039		shmax	Art Collections (BOI22_art)	C++17	20 / 100	112 ms	508 KiB

art

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

using namespace std;
//
// --- Sample implementation for the task art ---
//
// To compile this program with the sample grader, place:
//     art.h art_sample.cpp sample_grader.cpp
// in a single folder, then open the terminal in this directory (right-click onto an empty spot in the directory,
// left click on "Open in terminal") and enter e.g.:
//     g++ -std=c++17 art_sample.cpp sample_grader.cpp
// in this folder. This will create a file a.out in the current directory which you can execute from the terminal
// as ./a.out
// See task statement or sample_grader.cpp for the input specification
//

template<typename T>
using vec = vector<T>;

template<class T, class S>
inline bool chmax(T &a, const S &b) {
    return (a < b ? a = b, 1 : 0);
}

template<class T, class S>
inline bool chmin(T &a, const S &b) {
    return (a > b ? a = b, 1 : 0);
}

void solve(int n) {
    vec<int> p(n);
    iota(p.begin(), p.end(), 1);
    sort(p.begin(), p.end(), [&](int a, int b) {
        vec<int> v(n);
        v[0] = a;
        v[1] = b;
        set<int> s;
        for (int i = 1; i <= n; i++) {
            if (i == a || i == b) continue;
            s.insert(i);
        }
        for (int i = 2; i < n; i++) {
            v[i] = *s.begin();
            s.erase(s.begin());
        }
        int p1 = publish(v);
        swap(v[0], v[1]);
        int p2 = publish(v);
        return p1 < p2;
    });
//    for (int i = 0; i < n; i++) {
//        for (int j = 0; j < n - 1; j++) {
//            int val = publish(p);
//            swap(p[j], p[j + 1]);
//            int val2 = publish(p);
//            if (val2 > val) {
//                swap(p[j], p[j + 1]);
//            }
//        }
//    }
    answer(p);
}

Compilation message (stderr)

interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30