Submission #656528

#	Time	Username	Problem	Language	Result	Execution time	Memory
656528		Lobo	Art Collections (BOI22_art)	C++17	50 / 100	759 ms	416 KiB

art

#include "art.h"
#include<bits/stdc++.h>
using namespace std;
const long long inf = (long long) 1e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()

const int maxn = 1e5+10;
//
// --- 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
//

int n;
vector<int32_t> base;
int baseqry = 0;

vector<int> merges(vector<int> vec) {
    if(vec.size() == 1) return vec;
    vector<int> vecl,vecr;
    for(int i = 0; i < vec.size()/2; i++) {
        vecl.pb(vec[i]);
    }
    for(int i = vec.size()/2; i < vec.size(); i++) {
        vecr.pb(vec[i]);
    }

    vecl = merges(vecl);
    vecr = merges(vecr);
    vec.clear();

    int pl = 0;
    int pr = 0;
    while(pl != vecl.size() && pr != vecr.size()) {
        // ve se vecl[pl] e menor que vecr[pr]
        swap(base[vecl[pl]-1],base[vecr[pr]-1]);
        int nowqry = publish(base);
        swap(base[vecl[pl]-1],base[vecr[pr]-1]);
        if(baseqry < nowqry) {
            vec.pb(vecl[pl]);
            pl++;
        }
        else {
            vec.pb(vecr[pr]);
            pr++;
        }
    }

    while(pl != vecl.size()) {
        vec.pb(vecl[pl]);
        pl++;
    }
    while(pr != vecr.size()) {
        vec.pb(vecr[pr]);
        pr++;
    }
    return vec;
}

void solve(int32_t N) {
    // std::vector<int> order = {1, 2, 3};
    // publish(order);
    // order = {2, 3, 1};
    // publish(order);
    // order = {1, 3, 2};
    // answer(order);
    n = N;

    for(int i = 1; i <= n; i++) {
        base.pb(i);
    }

    baseqry = publish(base);

    answer(merges(base));    
}

Compilation message (stderr)

art.cpp: In function 'std::vector<int> merges(std::vector<int>)':
art.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(int i = 0; i < vec.size()/2; i++) {
      |                    ~~^~~~~~~~~~~~~~
art.cpp:38:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for(int i = vec.size()/2; i < vec.size(); i++) {
      |                               ~~^~~~~~~~~~~~
art.cpp:48:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     while(pl != vecl.size() && pr != vecr.size()) {
      |           ~~~^~~~~~~~~~~~~~
art.cpp:48:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     while(pl != vecl.size() && pr != vecr.size()) {
      |                                ~~~^~~~~~~~~~~~~~
art.cpp:63:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |     while(pl != vecl.size()) {
      |           ~~~^~~~~~~~~~~~~~
art.cpp:67:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |     while(pr != vecr.size()) {
      |           ~~~^~~~~~~~~~~~~~
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: 0 / 20
• Subtask 6: 0 / 30