oj.uz

Submission #75187

# Submission time Handle Problem Language Result Execution time Memory
75187 2018-09-08T16:27:21 Z vex medians (balkan11_medians) C++14
100 / 100
 40 ms 4572 KB 
#include <bits/stdc++.h>
#define maxn 100005
using namespace std;

int n;
bool bio[2*maxn];
int sol[2*maxn];
int tree[2*maxn];
int najm,najv;

int query(int k) {
    int s = 0;
    while (k >= 1) {
        s += tree[k];
        k -= k&-k;
    }
    return s;
}
void update(int k) {
    while (k <= 2*n-1) {
        tree[k] ++;
        k += k&-k;
    }
}


int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    cin>>n;
    najm=1;
    najv=2*n-1;
    for(int i=1;i<=2*n-1;i++)bio[i]=false;

    cin>>sol[0];
    bio[sol[0]]=true;
    update(sol[0]);
    for(int i=1;i<n;i++)
    {
        int x;
        cin>>x;

        int uk=2*i-1;
        int man=query(x-1);
        int vec=uk-man;

        if(!bio[x])
        {
            sol[uk]=x;
            uk++;
            bio[x]=true;
            update(x);
            if(vec>man)
            {
                while(bio[najm])najm++;
                sol[uk]=najm;
                update(najm);
                bio[najm]=true;
                najm++;
                uk++;
            }
            else{
                while(bio[najv])najv--;
                sol[uk]=najv;
                update(najv);
                bio[najv]=true;
                najv--;
                uk++;
            }
        }
        else{
            for(int j=0;j<2;j++)
            {
                if(vec>man)
                {
                    while(bio[najm])najm++;
                    sol[uk]=najm;
                    update(najm);
                    bio[najm]=true;
                    najm++;
                    man++;
                    uk++;
                }
                else{
                    while(bio[najv])najv--;
                    sol[uk]=najv;
                    update(najv);
                    bio[najv]=true;
                    najv--;
                    vec++;
                    uk++;
                }
            }
        }
    }

    for(int i=0;i<2*n-1;i++)cout<<sol[i]<<" ";
    return 0;
}

Subtask #1
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 508 KB Output is correct
3 Correct 3 ms 528 KB Output is correct
4 Correct 2 ms 528 KB Output is correct
5 Correct 2 ms 528 KB Output is correct
6 Correct 2 ms 528 KB Output is correct
7 Correct 2 ms 528 KB Output is correct
8 Correct 2 ms 528 KB Output is correct
9 Correct 2 ms 528 KB Output is correct
10 Correct 2 ms 632 KB Output is correct
11 Correct 2 ms 632 KB Output is correct
12 Correct 2 ms 632 KB Output is correct
13 Correct 2 ms 632 KB Output is correct

Subtask #2
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 632 KB Output is correct
2 Correct 3 ms 724 KB Output is correct
3 Correct 5 ms 852 KB Output is correct
4 Correct 7 ms 984 KB Output is correct
5 Correct 19 ms 1508 KB Output is correct
6 Correct 24 ms 2788 KB Output is correct
7 Correct 40 ms 4572 KB Output is correct