oj.uz

답안 #985018

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
985018 2024-05-17T09:35:52 Z alexdd Diversity (CEOI21_diversity) C++17
4 / 100
 9 ms 2396 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;
    }
    vector<int> frs,aux,aux2;
    for(int i=1;i<=mxm;i++)
        if(fr[i]) frs.push_back(fr[i]);
    sort(frs.begin(),frs.end());
    for(int i=0;i<frs.size();i+=2)
        aux.push_back(frs[i]);
    for(int i=1;i<frs.size();i+=2)
        aux2.push_back(frs[i]);
    reverse(aux2.begin(),aux2.end());
    for(auto x:aux2)
        aux.push_back(x);
    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;
}

Compilation message

diversity.cpp: In function 'int main()':
diversity.cpp:28:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i=0;i<frs.size();i+=2)
      |                 ~^~~~~~~~~~~
diversity.cpp:30:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int i=1;i<frs.size();i+=2)
      |                 ~^~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 2 ms 2396 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Incorrect 9 ms 2396 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 2 ms 2396 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Incorrect 9 ms 2396 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 2 ms 2396 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 6 ms 2396 KB Output is correct
5 Incorrect 9 ms 2396 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 2 ms 2396 KB Output is correct
14 Correct 6 ms 2396 KB Output is correct
15 Incorrect 9 ms 2396 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #6
0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 2 ms 2396 KB Output is correct
14 Correct 6 ms 2396 KB Output is correct
15 Incorrect 9 ms 2396 KB Output isn't correct
16 Halted 0 ms 0 KB -