Submission #964499

#	Time	Username	Problem	Language	Result	Execution time	Memory
964499		irmuun	Unscrambling a Messy Bug (IOI16_messy)	C++17	100 / 100	2 ms	612 KiB

messy

#include<bits/stdc++.h>
#include "messy.h"

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

vector<int>restore_permutation(int n,int w,int r){
    vector<pair<int,int>>vec;
    vec.pb({0,n-1});
    while(vec.size()<n){
        vector<pair<int,int>>u;
        string s(n,'1');
        for(auto [l,r]:vec){
            int mid=(l+r)/2;
            for(int i=l;i<=r;i++){
                s[i]='0';
            }
            for(int i=mid+1;i<=r;i++){
                s[i]='1';
                add_element(s);
                s[i]='0';
            }
            for(int i=l;i<=r;i++){
                s[i]='1';
            }
            u.pb({l,mid});
            u.pb({mid+1,r});
        }
        vec=u;
    }
    compile_set();
    string s(n,'0');
    vector<vector<int>>v,nxt;
    vector<int>u,a,b;
    for(int i=0;i<n;i++){
        u.pb(i);
    }
    v.pb(u);
    vector<int>p(n,0);
    int add=n;
    while(v.size()<n){
        add/=2;
        nxt.clear();
        string t(n,'1');
        for(auto u:v){
            a.clear();
            b.clear();
            for(int i:u) t[i]='0';
            for(int i:u){
                t[i]='1';
                if(check_element(t)){
                    p[i]+=add;
                    a.pb(i);
                }
                else{
                    b.pb(i);
                }
                t[i]='0';
            }
            for(int i:u) t[i]='1';
            nxt.pb(a);
            nxt.pb(b);
        }
        v=nxt;
    }
    return p;
}

Compilation message (stderr)

messy.cpp: In function 'std::vector<int> restore_permutation(int, int, int)':
messy.cpp:16:21: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   16 |     while(vec.size()<n){
      |           ~~~~~~~~~~^~
messy.cpp:47:19: warning: comparison of integer expressions of different signedness: 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |     while(v.size()<n){
      |           ~~~~~~~~^~

• Subtask 1: 20 / 20
• Subtask 2: 18 / 18
• Subtask 3: 11 / 11
• Subtask 4: 21 / 21
• Subtask 5: 30 / 30