oj.uz

답안 #595926

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
595926 2022-07-14T08:07:24 Z 이동현(#8445) Sushi (JOI16_sushi) C++17
20 / 100
 12000 ms 22076 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
using namespace std;

const int BS = 1000;
multiset<int> num[BS];
multiset<int> que[BS];
int ask[25004][3], lst[BS];

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int B = 1970;
    int n, q; cin >> n >> q;
    //n = 400000, q = 25000;
    vector<int> a(n);
    for(int i = 0; i < n; ++i){
        cin >> a[i];
       // a[i] = i + 1;
        num[i / B].insert(a[i]);
    }
    for(int i = 0; i < q; ++i){
        cin >> ask[i][0] >> ask[i][1] >> ask[i][2];
        lst[ask[i][0] / B] = lst[ask[i][1] / B] = i;
        if(ask[i][0] > ask[i][1]) lst[0] = lst[(n - 1) / B] = i;
    }
    for(int qq = 0; qq < q; ++qq){
        int x, y, k;
        x = ask[qq][0] - 1, y = ask[qq][1] - 1, k = ask[qq][2];
       // x = 0, y = n - 1, k = q + 300;
        auto sol = [&](int x, int y, int k)->int{
            auto doque = [&](int pos)->void{
                int bp = pos / B;
                if(!(int)que[bp].size()){
                    return;
                }
                int l = bp * B, r = min(n, l + B);
                if((int)que[bp].size() == 1){
                    int val = *que[bp].begin();
                    for(int i = l; i < r; ++i) if(val < a[i]) swap(val, a[i]);
                }
                else if((int)que[bp].size() == 2){
                    int v1 = *que[bp].begin(), v2 = *(--que[bp].end());
                    for(int i = l; i < r; ++i){
                        if(v1 < a[i]) swap(v1, a[i]);
                        if(v2 < a[i]) swap(v2, a[i]);
                    }
                }
                else if((int)que[bp].size() == 3){
                    int v1 = *que[bp].begin(), v2 = *(--(--que[bp].end())), v3 = *(--que[bp].end());
                    for(int i = l; i < r; ++i){
                        if(v1 < a[i]) swap(v1, a[i]);
                        if(v2 < a[i]) swap(v2, a[i]);
                        if(v3 < a[i]) swap(v3, a[i]);
                    }
                }
                else{
                    for(int i = l; i < r; ++i){
                        que[bp].insert(a[i]);
                        a[i] = *(que[bp].begin());
                        que[bp].erase(que[bp].begin());
                    }
                }
                que[bp].clear();
            };
            doque(x), doque(y);
            int xb = x / B, yb = y / B;
            int xl = xb * B, xr = min(n, xl + B);
            int yl = yb * B, yr = min(n, yl + B);

            if(xb < yb){
                for(int i = x; i < xr; ++i){
                    if(a[i] > k){
                        auto p = num[xb].lower_bound(a[i]);
                        num[xb].erase(p);
                        swap(a[i], k);
                        num[xb].insert(a[i]);
                    }
                }
                for(int i = xb + 1; i < yb; ++i){
                    if(lst[i] > qq) que[i].insert(k);
                    num[i].insert(k);
                    k = *(--num[i].end());
                    num[i].erase(--num[i].end());
                }
                for(int i = yl; i <= y; ++i){
                    if(a[i] > k){
                        auto p = num[yb].lower_bound(a[i]);
                        num[yb].erase(p);
                        swap(a[i], k);
                        num[yb].insert(a[i]);
                    }
                }
            }
            else{
                for(int i = x; i <= y; ++i){
                    if(a[i] > k){
                        auto p = num[xb].lower_bound(a[i]);
                        num[xb].erase(p);
                        swap(a[i], k);
                        num[xb].insert(a[i]);
                    }
                }
            }
            return k;
        };
        //if(x <= y) sol(x, y, k);
        //else sol(0, y, sol(x, n - 1, k));
        if(x <= y) cout << sol(x, y, k) << '\n';
        else cout << sol(0, y, sol(x, n - 1, k)) << '\n';
    }
    return 0;
}

Compilation message

sushi.cpp: In lambda function:
sushi.cpp:71:30: warning: unused variable 'yr' [-Wunused-variable]
   71 |             int yl = yb * B, yr = min(n, yl + B);
      |                              ^~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 468 KB Output is correct
2 Correct 9 ms 552 KB Output is correct
3 Correct 9 ms 468 KB Output is correct
4 Correct 10 ms 572 KB Output is correct
5 Correct 8 ms 468 KB Output is correct
6 Correct 8 ms 468 KB Output is correct
7 Correct 3 ms 468 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 11 ms 468 KB Output is correct
10 Correct 8 ms 468 KB Output is correct
11 Correct 104 ms 548 KB Output is correct
12 Correct 95 ms 552 KB Output is correct
13 Correct 79 ms 548 KB Output is correct
14 Correct 14 ms 468 KB Output is correct
15 Correct 15 ms 552 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3288 ms 21324 KB Output is correct
2 Correct 3373 ms 21200 KB Output is correct
3 Correct 1764 ms 21228 KB Output is correct
4 Correct 3265 ms 21344 KB Output is correct
5 Correct 8162 ms 21384 KB Output is correct
6 Correct 6984 ms 21192 KB Output is correct
7 Correct 7153 ms 21304 KB Output is correct
8 Correct 7282 ms 21216 KB Output is correct
9 Correct 1627 ms 21084 KB Output is correct
10 Correct 2177 ms 21232 KB Output is correct
11 Correct 1514 ms 21208 KB Output is correct
12 Correct 2228 ms 21256 KB Output is correct
13 Correct 3337 ms 21228 KB Output is correct
14 Correct 3203 ms 21264 KB Output is correct
15 Correct 1774 ms 21104 KB Output is correct
16 Correct 3359 ms 21308 KB Output is correct
17 Correct 8654 ms 21308 KB Output is correct
18 Correct 7047 ms 21304 KB Output is correct
19 Correct 6904 ms 21416 KB Output is correct
20 Correct 7089 ms 21456 KB Output is correct

Subtask #3
0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 468 KB Output is correct
2 Correct 9 ms 552 KB Output is correct
3 Correct 9 ms 468 KB Output is correct
4 Correct 10 ms 572 KB Output is correct
5 Correct 8 ms 468 KB Output is correct
6 Correct 8 ms 468 KB Output is correct
7 Correct 3 ms 468 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 11 ms 468 KB Output is correct
10 Correct 8 ms 468 KB Output is correct
11 Correct 104 ms 548 KB Output is correct
12 Correct 95 ms 552 KB Output is correct
13 Correct 79 ms 548 KB Output is correct
14 Correct 14 ms 468 KB Output is correct
15 Correct 15 ms 552 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 3288 ms 21324 KB Output is correct
24 Correct 3373 ms 21200 KB Output is correct
25 Correct 1764 ms 21228 KB Output is correct
26 Correct 3265 ms 21344 KB Output is correct
27 Correct 8162 ms 21384 KB Output is correct
28 Correct 6984 ms 21192 KB Output is correct
29 Correct 7153 ms 21304 KB Output is correct
30 Correct 7282 ms 21216 KB Output is correct
31 Correct 1627 ms 21084 KB Output is correct
32 Correct 2177 ms 21232 KB Output is correct
33 Correct 1514 ms 21208 KB Output is correct
34 Correct 2228 ms 21256 KB Output is correct
35 Correct 3337 ms 21228 KB Output is correct
36 Correct 3203 ms 21264 KB Output is correct
37 Correct 1774 ms 21104 KB Output is correct
38 Correct 3359 ms 21308 KB Output is correct
39 Correct 8654 ms 21308 KB Output is correct
40 Correct 7047 ms 21304 KB Output is correct
41 Correct 6904 ms 21416 KB Output is correct
42 Correct 7089 ms 21456 KB Output is correct
43 Correct 4687 ms 21956 KB Output is correct
44 Correct 4716 ms 21912 KB Output is correct
45 Correct 6055 ms 21684 KB Output is correct
46 Correct 4698 ms 22076 KB Output is correct
47 Correct 4604 ms 21988 KB Output is correct
48 Execution timed out 12007 ms 21880 KB Time limit exceeded
49 Halted 0 ms 0 KB -