Submission #1076409

#	Time	Username	Problem	Language	Result	Execution time	Memory
1076409		dosts	Art Collections (BOI22_art)	C++17	100 / 100	1140 ms	1872 KiB

art

#include "art.h"
//Dost SEFEROĞLU
#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define pii pair<int,int>
#define ff first
#define ss second
#define sp << " " << 
#define vi vector<int>
#define all(xx) xx.begin(),xx.end()
//
// --- 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
//
 
void solve(int N) {
    std::vector<int> order;
    vi ans(N);
    vi have(N,1);
    for (int i=0;i<N;i++) order.push_back(i+1);
    int x = publish(order);
    int curptr = 0;
    int ptr = N-1;
    int nn = N+2;
    while (curptr < N-curptr-1) {
        nn-=2;
        swap(order[0],order[ptr]);
        int y = publish(order);
        if ((N-curptr-1) - curptr > 1) {
            if (x < y) {
                int posdiff = (y-x+1)/2;
                //p[ilk]+posdiff = p[son]
                swap(order[0],order[ptr]);
                int temp = order[0];
                for (int i=0;i<ptr;i++) order[i] = order[i+1];
                order[ptr] = temp;
                int z = publish(order);
                int delt = z-x;
                int r = (nn+1-delt)/2;
                int cur = 0;
                for (int j=0;j<N;j++) {
                    if (!have[j]) continue;
                    cur++;
                    if (cur == r) {
                        ans[j] = curptr+1;
                        have[j] = 0;
                    }
                    else if (cur == r+posdiff) {
                        ans[j] = N-curptr;
                        have[j] = 0;
                    }
                }
                curptr++;
                ptr-=2;
                x = z;
            }
            else{
                int posdiff = (x-y+1)/2;
                //p[ilk]-posdiff = p[son]
                swap(order[0],order[ptr]);
                int temp = order[0];
                for (int i=0;i<ptr;i++) order[i] = order[i+1];
                order[ptr] = temp;
                int z = publish(order);
                int delt = z-x;
                int r = (nn+1-delt)/2;
                int cur = 0;
                for (int j=0;j<N;j++) {
                    if (!have[j]) continue;
                    cur++;
                    if (cur == r-posdiff) {
                        ans[j] = N-curptr;
                        have[j] = 0;
                    }
                    else if (cur == r) {
                        ans[j] = curptr+1;
                        have[j] = 0;
                    }
                }
                curptr++;
                ptr-=2;
                x = z;
            }
        }
        else {
            if (y > x) {
                for (int i=0;i<N;i++) {
                    if (have[i]) {
                        ans[i] = curptr+1;
                        curptr++;
                    }
                }
            }
            else {
                curptr++;
                for (int i=0;i<N;i++) {
                    if (have[i]) {
                        ans[i] = curptr+1;
                        curptr--;
                    }
                }
            }
            break;
        }
    }
    for (int i=0;i<N;i++) {
        if (!ans[i]) {
            for (int j=0;j<N;j++) {
                if (have[j]) {
                    ans[i] = curptr+1;
                    break;
                }
            }
        }
    }
    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