oj.uz

답안 #588288

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
588288 2022-07-03T02:07:04 Z perchuts Bubble Sort 2 (JOI18_bubblesort2) C++17
38 / 100
 22 ms 2820 KB 
#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define sz(x) (int) x.size()
#define endl '\n'
#define pb push_back
#define _ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
using namespace std;
 
using ll = long long;
using ull = unsigned long long;
using ii = pair<int,int>;
using iii = tuple<int,int,int>;
 
const int inf = 2e9+1;
const int mod = 1e9+7;
const int maxn = 1e6+100;
 
template<typename X, typename Y> bool ckmin(X& x, const Y& y) { return (y < x) ? (x=y,1):0; }
template<typename X, typename Y> bool ckmax(X& x, const Y& y) { return (x < y) ? (x=y,1):0; }
 
int val[maxn], seg[4*maxn], lazy[4*maxn], as[maxn], vs[maxn], n, q;
ii freq[4*maxn];
 
vector<ii>v2 = {{-inf,0}};
 
//comprimir coordenadas de todos os valores (iniciais e alteracoes nas queries)
//necessario pra ordenar: max(0,posicao atual - posicao ordenada)
//pra achar posicao ordenada: seg de frequencia com compressao
//update: vou trocar x por y
//se x < y, todo mundo entre compressao(x) e compressao(y) diminui em 1.
//se x > y, todo mundo entre compressao(x) e compressao(y) aumenta em 1.
//se x=y, fodase
 
void updatef(int i,int l,int r,int x,int type){
    if(l>x||r<x)return;
    if(l==r){
        if(type==-inf)freq[i] = {0,-inf};
        else freq[i] = {1,type};
        return;
    }
    int md = (l+r)/2;
    updatef(2*i,l,md,x,type), updatef(2*i+1,md+1,r,x,type);
    freq[i].first = freq[2*i].first + freq[2*i+1].first, freq[i].second = max(freq[2*i].second,freq[2*i+1].second);
}
 
int query(int i,int l,int r,int x){
    if(l==r){
        return (freq[i].second<=x&&freq[i].first);
    }
    int md = (l+r)/2;
    if(freq[2*i].second<=x)return freq[2*i].first + query(2*i+1,md+1,r,x);
    return query(2*i,l,md,x);
}
 
void push(int i,int l,int r){
    seg[i] += lazy[i];
    if(l!=r)lazy[2*i] += lazy[i], lazy[2*i+1] += lazy[i];
    lazy[i] = 0;
}
 
void adiciona(int i,int l,int r,int x,int d){
    push(i,l,r);
    if(l>x||r<x)return;
    if(l==r){
        seg[i] = d;
        return;
    } 
    int md = (l+r)/2;
    adiciona(2*i,l,md,x,d), adiciona(2*i+1,md+1,r,x,d);
    seg[i] = max(seg[2*i],seg[2*i+1]);
}
 
 
void update(int i,int l,int r,int x,int y,int d){
    push(i,l,r);
    if(l>y||r<x)return;
    if(x<=l&&r<=y){
        lazy[i] += d;
        push(i,l,r);
        return;
    }
    int md = (l+r)/2;
    update(2*i,l,md,x,y,d), update(2*i+1,md+1,r,x,y,d);
    seg[i] = max(seg[2*i],seg[2*i+1]);
}
 
 
vector<int> countScans(vector<int> a,vector<int> x,vector<int> v){
	q=sz(x), n=sz(a);
 
    vector<int>answers;
 
    for(int i=1;i<=4*(n+q);++i)seg[i] = -6e5, freq[i] = {0,0};
 
    for(int i=0;i<n;++i){
        v2.pb({a[i],i+1});
    }
 
    for(int i=0;i<q;++i){
        v2.pb({v[i],n+1+i});
    }
 
    sort(all(v2));
 
    for(int i=1;i<=n+q;++i){
        if(v2[i].second<=n)as[v2[i].second-1] = v2[i].first, a[v2[i].second-1] = i;
        else vs[v2[i].second-1-n] = v2[i].first, v[v2[i].second-1-n] = i;
    }
 
    for(int i=0;i<n;++i){
        updatef(1,1,n+q,a[i],as[i]);
    }
    
    for(int i=0;i<n;++i){
        int precisa = max(0,i - query(1,1,n+q,as[i])+1);
        adiciona(1,1,n+q,a[i],precisa);
    }
 
    for(int i=0;i<q;++i){
        int atual = a[x[i]], novo = v[i];
 
        updatef(1,1,n+q,atual,-inf), adiciona(1,1,n+q,atual,-6e5), updatef(1,1,n+q,novo,vs[i]);
 
        int precisa = max(0,x[i] - query(1,1,n+q,vs[i])+1);
        
        if(atual<novo)update(1,1,n+q,atual,novo,1);
        if(atual>novo)update(1,1,n+q,novo,atual,-1);
 
        adiciona(1,1,n+q,novo,precisa);
 
        answers.pb(max(0,seg[1]));
        a[x[i]] = novo;
    }
    return answers;
}
 
//5 4 3 2 5
//4 3 2 5 5
//3 2 4 5 5
 
 
// int main(){
//     int n,q;cin>>n>>q;
//     vector<int>a;
//     for(int i=1;i<=n;++i){
//         int x;cin>>x;
//         a.pb(x);
//     }
//     vector<int>x,v;
//     for(int i=0;i<q;++i){
//         int d,f;cin>>d>>f;
//         x.pb(d), v.pb(f);
//     }
//     vector<int>resp = countScans(a,x,v);
//     for(auto x:resp)cout<<x<<" ";
// }

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 4 ms 724 KB Output is correct
4 Correct 4 ms 708 KB Output is correct
5 Correct 4 ms 708 KB Output is correct
6 Correct 5 ms 708 KB Output is correct
7 Correct 5 ms 724 KB Output is correct
8 Correct 4 ms 708 KB Output is correct
9 Correct 5 ms 740 KB Output is correct
10 Correct 5 ms 724 KB Output is correct
11 Correct 5 ms 724 KB Output is correct
12 Correct 4 ms 724 KB Output is correct
13 Correct 4 ms 736 KB Output is correct
14 Correct 4 ms 724 KB Output is correct
15 Correct 5 ms 728 KB Output is correct
16 Correct 4 ms 736 KB Output is correct
17 Correct 5 ms 672 KB Output is correct
18 Correct 5 ms 704 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 4 ms 724 KB Output is correct
4 Correct 4 ms 708 KB Output is correct
5 Correct 4 ms 708 KB Output is correct
6 Correct 5 ms 708 KB Output is correct
7 Correct 5 ms 724 KB Output is correct
8 Correct 4 ms 708 KB Output is correct
9 Correct 5 ms 740 KB Output is correct
10 Correct 5 ms 724 KB Output is correct
11 Correct 5 ms 724 KB Output is correct
12 Correct 4 ms 724 KB Output is correct
13 Correct 4 ms 736 KB Output is correct
14 Correct 4 ms 724 KB Output is correct
15 Correct 5 ms 728 KB Output is correct
16 Correct 4 ms 736 KB Output is correct
17 Correct 5 ms 672 KB Output is correct
18 Correct 5 ms 704 KB Output is correct
19 Correct 16 ms 1780 KB Output is correct
20 Correct 19 ms 1856 KB Output is correct
21 Correct 18 ms 1864 KB Output is correct
22 Correct 19 ms 1940 KB Output is correct
23 Correct 20 ms 1876 KB Output is correct
24 Correct 19 ms 1876 KB Output is correct
25 Correct 18 ms 1856 KB Output is correct
26 Correct 18 ms 1900 KB Output is correct
27 Correct 18 ms 1908 KB Output is correct
28 Correct 18 ms 1904 KB Output is correct

Subtask #3
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 22 ms 2820 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 4 ms 724 KB Output is correct
4 Correct 4 ms 708 KB Output is correct
5 Correct 4 ms 708 KB Output is correct
6 Correct 5 ms 708 KB Output is correct
7 Correct 5 ms 724 KB Output is correct
8 Correct 4 ms 708 KB Output is correct
9 Correct 5 ms 740 KB Output is correct
10 Correct 5 ms 724 KB Output is correct
11 Correct 5 ms 724 KB Output is correct
12 Correct 4 ms 724 KB Output is correct
13 Correct 4 ms 736 KB Output is correct
14 Correct 4 ms 724 KB Output is correct
15 Correct 5 ms 728 KB Output is correct
16 Correct 4 ms 736 KB Output is correct
17 Correct 5 ms 672 KB Output is correct
18 Correct 5 ms 704 KB Output is correct
19 Correct 16 ms 1780 KB Output is correct
20 Correct 19 ms 1856 KB Output is correct
21 Correct 18 ms 1864 KB Output is correct
22 Correct 19 ms 1940 KB Output is correct
23 Correct 20 ms 1876 KB Output is correct
24 Correct 19 ms 1876 KB Output is correct
25 Correct 18 ms 1856 KB Output is correct
26 Correct 18 ms 1900 KB Output is correct
27 Correct 18 ms 1908 KB Output is correct
28 Correct 18 ms 1904 KB Output is correct
29 Incorrect 22 ms 2820 KB Output isn't correct
30 Halted 0 ms 0 KB -