oj.uz

답안 #366248

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
366248 2021-02-13T16:02:57 Z vaaven Cake 3 (JOI19_cake3) C++14
24 / 100
 4000 ms 15648 KB 
//#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#include <iostream>
#include <vector>
#include <algorithm>
#include <math.h>
#include <set>
#include <stack>
#include <iomanip>
#include <bitset>
#include <map>
#include <cassert>
#include <array>
#include <queue>
#include <cstring>
#include <random>
#include <unordered_set>
#include <unordered_map>
#define pqueue priority_queue
#define pb(x) push_back(x)
// #define endl '\n'
#define all(x) x.begin(), x.end()
#define int long  long
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef vector<int> vi;
typedef vector<vector<int> > vvi;
// typedef tuple<ll, ll, ll> tiii;
typedef pair<int, int> pii;
typedef vector<pair<int, int> > vpii;
typedef vector<bool> vb;
typedef vector<string> vs;
typedef vector<char> vc;
 
const int inf = 1e9 + 228;
const ll mod = 1e9 + 7;
const ll mod2 = 998244353;
const ld eps = 1e-14;
 
 
void fast_io(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
//    freopen("inputik.txt", "r", stdin);
//    freopen("outputik.txt", "w", stdout);
}

vpii kek;
int n, m;
int ans = 0;
int all_ans = -inf*inf;
int cl = 0, cr = -1;
multiset<int> fir, sec;

int get(int l, int r){
    while(cr < r){
        cr++;
//        cout << " + " << kek[cr].second << endl;
        sec.insert(kek[cr].second);
        ans += kek[cr].second;
        if(sec.size() > m-2){
            ans -= *sec.begin();
            fir.insert(*sec.begin());
            sec.erase(sec.begin());
        }
    }
    while(cl > l){
        cl--;
//        cout << " + " << kek[cl].second << endl;
        sec.insert(kek[cl].second);
        ans += kek[cl].second;
        if(sec.size() > m-2){
            ans -= *sec.begin();
            fir.insert(*sec.begin());
            sec.erase(sec.begin());
        }
    }
    while(cr > r){
        auto it = sec.find(kek[cr].second);
//        cout << " - " << kek[cr].second << endl;
        if(it == sec.end()){
            fir.erase(fir.find(kek[cr].second));
        } else{
            ans -= *it;
            sec.erase(it);
            if(fir.size()){
                sec.insert(*(--fir.end()));
                ans += *(--fir.end());
                fir.erase(--fir.end());
            }
        }
        cr--;
    }
    while(cl < l){
//        cout << " - " << kek[cl].second << endl;
        auto it = sec.find(kek[cl].second);
        if(it == sec.end()){
            fir.erase(fir.find(kek[cl].second));
        } else{
            ans -= *it;
            sec.erase(it);
            if(fir.size()){
                sec.insert(*(--fir.end()));
                ans += *(--fir.end());
                fir.erase(--fir.end());
            }
        }
        cl++;
    }
    return ans;
}

void calc(int l, int r, int tl, int tr){
    if(l > r)
        return;
    int mid = (l + r)/2;
    int res = -inf*inf, pos = tr;
    for(int i=max(mid+m-1, tl); i<=tr; i++){
        if(res <= get(mid+1, i-1) + kek[i].second + kek[mid].second - (kek[i].first - kek[mid].first)*2){
            res = ans + kek[i].second + kek[mid].second - (kek[i].first - kek[mid].first)*2;
            pos = i;
        }
    }
    all_ans = max(all_ans, res);
    calc(l, mid-1, tl, pos);
    calc(mid+1, r, pos, tr);
}

void solve(){
    cin >> n >> m;
    kek.resize(n);
    for(int i=0; i<n; i++){
        int a, b;
        cin >> a >> b;
        kek[i] = make_pair(b, a);
    }
    sort(all(kek));
    calc(0, n-1, 0, n-1);
    cout << all_ans << endl;
}

/*
5 3
2 1
4 2
6 4
8 8
10 16
======
8 4
112103441 501365808
659752417 137957977
86280801 257419447
902409188 565237611
965602301 689654312
104535476 646977261
945132881 114821749
198700181 915994879
 */
 
signed main(){
     fast_io();
//  srand(time(NULL));
    cout << fixed << setprecision(10);
    int q = 1;
//    cin >> q;
    while(q--)
        solve();
}

Compilation message

cake3.cpp: In function 'long long int get(long long int, long long int)':
cake3.cpp:65:23: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   65 |         if(sec.size() > m-2){
      |            ~~~~~~~~~~~^~~~~
cake3.cpp:76:23: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   76 |         if(sec.size() > m-2){
      |            ~~~~~~~~~~~^~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 392 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 364 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 392 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 8 ms 492 KB Output is correct
39 Correct 9 ms 556 KB Output is correct
40 Correct 5 ms 492 KB Output is correct
41 Correct 6 ms 492 KB Output is correct
42 Correct 4 ms 492 KB Output is correct
43 Correct 5 ms 492 KB Output is correct
44 Correct 10 ms 492 KB Output is correct
45 Correct 8 ms 492 KB Output is correct
46 Correct 8 ms 492 KB Output is correct
47 Correct 9 ms 628 KB Output is correct
48 Correct 9 ms 492 KB Output is correct
49 Correct 9 ms 492 KB Output is correct
50 Correct 7 ms 492 KB Output is correct
51 Correct 7 ms 492 KB Output is correct
52 Correct 6 ms 492 KB Output is correct
53 Correct 7 ms 492 KB Output is correct
54 Correct 5 ms 492 KB Output is correct
55 Correct 4 ms 492 KB Output is correct
56 Correct 4 ms 492 KB Output is correct
57 Correct 4 ms 512 KB Output is correct
58 Correct 4 ms 492 KB Output is correct
59 Correct 5 ms 492 KB Output is correct
60 Correct 7 ms 492 KB Output is correct
61 Correct 5 ms 492 KB Output is correct
62 Correct 4 ms 492 KB Output is correct
63 Correct 5 ms 492 KB Output is correct
64 Correct 5 ms 492 KB Output is correct
65 Correct 8 ms 492 KB Output is correct
66 Correct 7 ms 492 KB Output is correct
67 Correct 8 ms 492 KB Output is correct
68 Correct 7 ms 492 KB Output is correct
69 Correct 6 ms 492 KB Output is correct
70 Correct 6 ms 464 KB Output is correct
71 Correct 7 ms 492 KB Output is correct
72 Correct 4 ms 492 KB Output is correct
73 Correct 5 ms 492 KB Output is correct
74 Correct 2 ms 492 KB Output is correct

Subtask #3
0 / 76.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 392 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 1 ms 364 KB Output is correct
37 Correct 1 ms 364 KB Output is correct
38 Correct 8 ms 492 KB Output is correct
39 Correct 9 ms 556 KB Output is correct
40 Correct 5 ms 492 KB Output is correct
41 Correct 6 ms 492 KB Output is correct
42 Correct 4 ms 492 KB Output is correct
43 Correct 5 ms 492 KB Output is correct
44 Correct 10 ms 492 KB Output is correct
45 Correct 8 ms 492 KB Output is correct
46 Correct 8 ms 492 KB Output is correct
47 Correct 9 ms 628 KB Output is correct
48 Correct 9 ms 492 KB Output is correct
49 Correct 9 ms 492 KB Output is correct
50 Correct 7 ms 492 KB Output is correct
51 Correct 7 ms 492 KB Output is correct
52 Correct 6 ms 492 KB Output is correct
53 Correct 7 ms 492 KB Output is correct
54 Correct 5 ms 492 KB Output is correct
55 Correct 4 ms 492 KB Output is correct
56 Correct 4 ms 492 KB Output is correct
57 Correct 4 ms 512 KB Output is correct
58 Correct 4 ms 492 KB Output is correct
59 Correct 5 ms 492 KB Output is correct
60 Correct 7 ms 492 KB Output is correct
61 Correct 5 ms 492 KB Output is correct
62 Correct 4 ms 492 KB Output is correct
63 Correct 5 ms 492 KB Output is correct
64 Correct 5 ms 492 KB Output is correct
65 Correct 8 ms 492 KB Output is correct
66 Correct 7 ms 492 KB Output is correct
67 Correct 8 ms 492 KB Output is correct
68 Correct 7 ms 492 KB Output is correct
69 Correct 6 ms 492 KB Output is correct
70 Correct 6 ms 464 KB Output is correct
71 Correct 7 ms 492 KB Output is correct
72 Correct 4 ms 492 KB Output is correct
73 Correct 5 ms 492 KB Output is correct
74 Correct 2 ms 492 KB Output is correct
75 Execution timed out 4065 ms 15648 KB Time limit exceeded
76 Halted 0 ms 0 KB -