Submission #1107043

#	Time	Username	Problem	Language	Result	Execution time	Memory
1107043		shmax	Art Collections (BOI22_art)	C++17	100 / 100	1080 ms	2068 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) {
    deque<int> p(n);
    iota(p.begin(), p.end(), 1);
    vec<int> r1(n + 1), r2(n + 1);
    for (int i = 0; i < n; i++) {
        int val = publish(vec<int>(p.begin(), p.end()));
        r1[p.back()] = val;
        r2[p.front()] = val;
        int x = p.back();
        p.pop_back();
        p.push_front(x);
    }
    vec<int> ans(n);
    for (int i = 0; i < n; i++) {
        ans[(n - 1 - (r1[i + 1] - r2[i + 1])) / 2] = i + 1;
    }
//    for (int i = 1; i <= n; i++) {
//        vec<int> r1, r2;
//        r2.push_back(i);
//        for (int j = 1; j <= n; j++) {
//            if (j == i) continue;
//            r1.push_back(j);
//            r2.push_back(j);
//        }
//        r1.push_back(i);
//        int v1 = publish(r1);
//        int v2 = publish(r2);
//        int pos = (n - (v1 - v2) - 1) / 2;
//        ans[pos] = i;
//    }
    answer(ans);
}

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: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30