oj.uz

답안 #985001

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
985001 2024-05-17T09:24:57 Z alexdd Newspapers (CEOI21_newspapers) C++17
0 / 100
 1 ms 348 KB 
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
int n,q;
int a[300005];
int fr[300005];
signed main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    cin>>n>>q;
    int mxm=0;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        fr[a[i]]++;
        mxm=max(mxm,a[i]);
    }
    int qle,qri;
    for(int i=1;i<=q;i++)
    {
        cin>>qle>>qri;
    }
    sort(fr+1,fr+1+mxm);
    vector<int> vle,vri;
    for(int i=1;i+1<=mxm;i+=2)
    {
        if(i%2==1 || 1)
        {
            vle.push_back(fr[i]);
            vri.push_back(fr[i+1]);
        }
        else
        {
            vle.push_back(fr[i+1]);
            vri.push_back(fr[i]);
        }
    }
    if(mxm%2==1) vle.push_back(fr[mxm]);
    vector<int> aux = vle;
    for(int i=(int)vri.size()-1;i>=0;i--)
        aux.push_back(vri[i]);
    long long pref=0,rez=0;
    for(auto x:aux)
    {
        rez += (pref+x)*(n-pref);
        rez -= x*(x-1)/2;
        pref += x;
    }
    cout<<rez;
    return 0;
}

Subtask #1
0.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 348 KB Token "0" doesn't correspond to pattern "YES|NO"
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 344 KB Token "0" doesn't correspond to pattern "YES|NO"
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 348 KB Token "0" doesn't correspond to pattern "YES|NO"
2 Halted 0 ms 0 KB -