Submission #923694

#	Time	Username	Problem	Language	Result	Execution time	Memory
923694		alexdd	Super Dango Maker (JOI22_dango3)	C++17	0 / 100	2 ms	604 KiB

dango3

#include "dango3.h"
#include <bits/stdc++.h>
using namespace std;
int n,m;
vector<int> ord;
vector<int> favec(vector<int> cv, int mij)
{
    vector<int> aux = cv;
    for(int j=0;j<=mij;j++)
        aux.push_back(ord[j]);
    return aux;
}
void scoate_unu()
{
    int ult = ord.size();
    vector<int> cv;
    for(int i=1;i<=n;i++)
    {
        int st,dr,mij,ans=ult-1;
        if(i==ult || !Query(favec(cv,mij-2)))
            ans=ult-1;
        else
        {
            st=0;
            dr=ult-1;
            while(st<=dr)
            {
                mij=(st+dr)/2;

                if(Query(favec(cv,mij)))
                {
                    ans=mij;
                    dr=mij-1;
                }
                else
                    st=mij+1;
            }
        }
        cv.push_back(ord[ans]);
        ult=ans;
        ord.erase(ord.begin()+ans);
    }
    Answer(cv);
}
void Solve(int N, int M)
{
    n=N;
    m=M;
    for(int i=1;i<=n*m;i++)
        ord.push_back(i);
    random_shuffle(ord.begin(),ord.end());
    for(int i=1;i<m;i++)
        scoate_unu();
    Answer(ord);
}
/**

3 2
3 3 1 2 1 2

*/

Compilation message (stderr)

dango3.cpp: In function 'void scoate_unu()':
dango3.cpp:20:43: warning: 'mij' may be used uninitialized in this function [-Wmaybe-uninitialized]
   20 |         if(i==ult || !Query(favec(cv,mij-2)))
      |                                           ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 5
• Subtask 3: 0 / 15
• Subtask 4: 0 / 78