oj.uz

답안 #815823

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
815823 2023-08-09T00:37:16 Z vjudge1 Ekoeko (COCI21_ekoeko) C++17
110 / 110
 61 ms 4660 KB 
#include<bits/stdc++.h>
#define eb emplace_back
using namespace std;
const int N = 2e5+5;
int frek[30]={0};
vector<char>kmpl;
deque<int>indeks[30];
vector<int>ssn;
int segtree[4*N]={0};
void barui(int idx, int low, int high, int value) {
    if(low==high && low==value) {
        segtree[idx]=1;
        return;
    }
    if(value<low || value>high) return;
    int mid = (low+high)/2;
    barui(2*idx,low,mid,value);
    barui(2*idx+1,mid+1,high,value);
    segtree[idx] = segtree[2*idx]+segtree[2*idx+1];
}
int carinya(int idx, int low, int high, int l, int r) {
    if(low>=l && high<=r) {
        return segtree[idx];
    }
    if(low>r || high<l) return 0;
    int mid = (low+high)/2;
    int left = carinya(2*idx,low,mid,l,r);
    int right = carinya(2*idx+1,mid+1,high,l,r);
    return left+right;
}
int main() {
    int n;
    cin >> n;
    n*=2;
    string umum;
    cin >> umum;
    for(int i=0; i<n; i++) frek[umum[i]-97]++;
    for(int i=0; i<n; i++) {
        if(frek[umum[i]-97]>0) {
            kmpl.eb(umum[i]);
            frek[umum[i]-97]-=2;
        }
    }
    int sk=kmpl.size();
    for(int i=0; i<sk; i++) kmpl.eb(kmpl[i]);
    for(int i=0; i<n; i++) indeks[kmpl[i]-97].eb(i);
    for(int i=0; i<n; i++) {
        ssn.eb(indeks[umum[i]-97].front());
        indeks[umum[i]-97].pop_front();
    }
    long long jwb=0;
    for(int i=0; i<n; i++) {
        jwb+=carinya(1,0,n-1,ssn[i]+1,n-1);
        barui(1,0,n-1,ssn[i]);
    }
    cout << jwb << endl;
    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 16 ms 2056 KB Output is correct
3 Correct 32 ms 3876 KB Output is correct
4 Correct 48 ms 4528 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 16 ms 2056 KB Output is correct
3 Correct 32 ms 3876 KB Output is correct
4 Correct 48 ms 4528 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 16 ms 2056 KB Output is correct
3 Correct 32 ms 3876 KB Output is correct
4 Correct 48 ms 4528 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 54 ms 4588 KB Output is correct
7 Correct 53 ms 4608 KB Output is correct
8 Correct 52 ms 4564 KB Output is correct
9 Correct 52 ms 4536 KB Output is correct
10 Correct 51 ms 4480 KB Output is correct
11 Correct 51 ms 4560 KB Output is correct
12 Correct 50 ms 4464 KB Output is correct
13 Correct 50 ms 4312 KB Output is correct
14 Correct 49 ms 4264 KB Output is correct
15 Correct 61 ms 4304 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #5
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 16 ms 2056 KB Output is correct
3 Correct 32 ms 3876 KB Output is correct
4 Correct 48 ms 4528 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 54 ms 4588 KB Output is correct
11 Correct 53 ms 4608 KB Output is correct
12 Correct 52 ms 4564 KB Output is correct
13 Correct 52 ms 4536 KB Output is correct
14 Correct 51 ms 4480 KB Output is correct
15 Correct 51 ms 4560 KB Output is correct
16 Correct 50 ms 4464 KB Output is correct
17 Correct 50 ms 4312 KB Output is correct
18 Correct 49 ms 4264 KB Output is correct
19 Correct 61 ms 4304 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 54 ms 4604 KB Output is correct
33 Correct 56 ms 4660 KB Output is correct
34 Correct 59 ms 4600 KB Output is correct
35 Correct 52 ms 4588 KB Output is correct
36 Correct 56 ms 4492 KB Output is correct
37 Correct 51 ms 4468 KB Output is correct
38 Correct 50 ms 4456 KB Output is correct
39 Correct 50 ms 4356 KB Output is correct
40 Correct 49 ms 4312 KB Output is correct
41 Correct 49 ms 4316 KB Output is correct