Submission #1015380

#	Time	Username	Problem	Language	Result	Execution time	Memory
1015380		phoenix	Art Collections (BOI22_art)	C++17	100 / 100	1336 ms	1816 KiB

art

#include "art.h"
#include <vector>
//
// --- 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
//


using namespace std;

void solve(int n) {
    vector<int> a(n);
    vector<int> p(n);
    for (int i = 0; i < n; i++) p[i] = i + 1;
    int init, prev, cur;
    init = prev = publish(p);
    for (int i = n - 1; i >= 1; i--) {
        for (int j = 0; j < n; j++) 
            p[j] = (j + i) % n + 1;
        cur = publish(p);
        a[i] = (cur - prev + n - 1) / 2;
        prev = cur;
    }
    a[0] = (init - prev + n - 1) / 2;
    vector<int> r(n);
    for (int i = 0; i < n; i++) 
        r[a[i]] = i + 1;
    answer(r);
}

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