Submission #871811

#	Time	Username	Problem	Language	Result	Execution time	Memory
871811		imarn	Art Collections (BOI22_art)	C++17	100 / 100	1213 ms	1560 KiB

art

#include<bits/stdc++.h>
#include "art.h"
#define f first
#define s second
#define ll long long
#define pb push_back
#define pii pair<int,int>
#define pll pair<ll,ll>
#define sz(x) (int)x.size()
#define all(x) x.begin(),x.end()
using namespace std;
/*int x[4]={0,1,3,2};
int publish(vector<int>a){
    int cnt=0;
    for(int i=0;i<a.size();i++){
        for(int j=0;j<i;j++){
            if(x[a[i]]<x[a[j]])cnt++;
        }
    }return cnt;
}*/
void solve(int N) {
    vector<int>a(N);
    int ans[N+1];
    for(int i=0;i<N;i++)a[i]=i+1;
    int tt1=publish(a);int st=tt1;
    for(int i=1;i<=N-1;i++){
        for(int j=i;j<N;j++)a[j]=j-i+1;
        for(int j=0;j<i;j++)a[j]=N-i+j+1;
        int tt2=publish(a);
        ans[N-i+1]=(N-1+tt2-tt1)/2;
        tt1=tt2;
    }ans[1]=(N-1+st-tt1)/2;
    vector<int>ord(N);
    for(int i=1;i<=N;i++)ord[ans[i]]=i;
    answer(ord);
    //for(int i=0;i<N;i++)cout<<ord[i]<<" ";
}

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