Submission #788205

#	Time	Username	Problem	Language	Result	Execution time	Memory
788205		Ozy	Art Collections (BOI22_art)	C++17	100 / 100	1302 ms	652 KiB

art

#include "art.h"
#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define debug(a) cout << #a << " = " << a << endl
#define debugsl(a) cout << #a << " = " << a << ", "
#define rep(i,a,b) for(int i = (a); i <= (b); i++)
#define repa(i,a,b) for(int i = (a); i >= (b); i--)
#define pll pair<lli,lli>

// --- 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
//

#define MAX 4000

lli n,a,antes,despues,mitad;
lli inicios[MAX+2];

void solve(int N) {
    n = N;
    vector<int> pos;
    pos.resize(n);

    rep(i,1,n){
        vector<int> perm;
        rep(j,0,n-1) {
            a = (i+j);
            if (a > n) a -= n;
            perm.push_back(a);
        }
        inicios[i] = publish(perm);
    }

    mitad = (n+1)/2;
    rep(i,1,n) {

        antes = inicios[i];
        if (i < n) despues = inicios[i+1];
        else despues = inicios[1];

        a = (antes - despues);
        if (abs(a)&1) a++;
        a /= 2;

        //debugsl(i);
        //debugsl(a);

        pos[mitad+a-1] = i;

        //debug(pos[i-1]);
    }

    answer(pos);
}

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