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Submission #965105

# Submission time Handle Problem Language Result Execution time Memory
965105 2024-04-18T06:49:58 Z weakweakweak 역사적 조사 (JOI14_historical) C++17
100 / 100
 316 ms 25044 KB 
//回滾莫隊 裸題
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int,int>;

#define fs first
#define sc second

int n, q, a[510000], cnt[510000] = {0};
long long nowans, ans[510000];
vector <int> b;
int B;
vector <pair<pii,int>> qs[510000];

void add (int x) {
    cnt[x]++;
    nowans = max(nowans, b[x] * 1LL * cnt[x]);
}

int main () {
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n >> q;
    B = sqrt((n + q + 1) / 2);
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        b.push_back(a[i]);
    }
    sort (b.begin(), b.end());
    b.erase(unique(b.begin(), b.end()), b.end());
    for (int i = 1; i <= n; i++) a[i] = lower_bound(b.begin(), b.end(), a[i]) - b.begin();

    for (int i = 1; i <= q; i++) {
        pii p;
        cin >> p.fs >> p.sc;
        int lb = p.fs / B, rb = p.sc / B;
        if (lb == rb) { // 特判塊太小
            for (int j = p.fs; j <= p.sc; j++) cnt[a[j]] = 0;
            nowans = 0;
            for (int j = p.fs; j <= p.sc; j++) add(a[j]);
            ans[i] = nowans;
            continue;
        }
        qs[p.fs / B] . push_back({p, i}); 
    }

    for (int i = 1 / B; i <= n / B; i++) {
        sort(qs[i].begin(), qs[i].end(), [](pair<pii,int>a, pair<pii,int>b){return a.fs.sc < b.fs.sc;} );
        int RB = min(i * B + B, n), R = RB - 1;
        nowans = 0;
        memset(cnt, 0, sizeof(cnt));
        for (auto qq : qs[i]) {
            while (R < qq.fs.sc) {
                R++;
                add(a[R]);
            }
            long long oldans = nowans;
            vector <pii> old;
            for (int j = RB - 1; j >= qq.fs.fs; j--) old.push_back({a[j], cnt[a[j]]});
            for (int j = RB - 1; j >= qq.fs.fs; j--) add(a[j]);
            ans[qq.sc] = nowans;
            nowans = oldans;
            for (pii p : old) cnt[p.fs] = p.sc;
        }
    }

    for (int i = 1; i <= q; i++) cout << ans[i] << '\n';
return 0;}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16984 KB Output is correct
2 Correct 7 ms 17044 KB Output is correct
3 Correct 4 ms 16984 KB Output is correct
4 Correct 4 ms 16984 KB Output is correct
5 Correct 5 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 4 ms 16988 KB Output is correct
8 Correct 4 ms 16988 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 4 ms 16984 KB Output is correct
11 Correct 4 ms 17048 KB Output is correct
12 Correct 4 ms 16988 KB Output is correct
13 Correct 4 ms 17052 KB Output is correct
14 Correct 4 ms 16988 KB Output is correct
15 Correct 4 ms 16988 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16984 KB Output is correct
2 Correct 7 ms 17044 KB Output is correct
3 Correct 4 ms 16984 KB Output is correct
4 Correct 4 ms 16984 KB Output is correct
5 Correct 5 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 4 ms 16988 KB Output is correct
8 Correct 4 ms 16988 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 4 ms 16984 KB Output is correct
11 Correct 4 ms 17048 KB Output is correct
12 Correct 4 ms 16988 KB Output is correct
13 Correct 4 ms 17052 KB Output is correct
14 Correct 4 ms 16988 KB Output is correct
15 Correct 4 ms 16988 KB Output is correct
16 Correct 5 ms 17048 KB Output is correct
17 Correct 5 ms 16988 KB Output is correct
18 Correct 5 ms 16984 KB Output is correct
19 Correct 6 ms 16988 KB Output is correct
20 Correct 10 ms 16984 KB Output is correct
21 Correct 11 ms 17244 KB Output is correct
22 Correct 13 ms 17244 KB Output is correct
23 Correct 11 ms 17240 KB Output is correct
24 Correct 10 ms 17244 KB Output is correct
25 Correct 11 ms 17268 KB Output is correct
26 Correct 11 ms 17280 KB Output is correct
27 Correct 11 ms 17240 KB Output is correct
28 Correct 11 ms 17244 KB Output is correct
29 Correct 10 ms 17244 KB Output is correct
30 Correct 10 ms 17244 KB Output is correct
31 Correct 10 ms 17164 KB Output is correct
32 Correct 11 ms 17244 KB Output is correct
33 Correct 14 ms 17240 KB Output is correct
34 Correct 12 ms 17244 KB Output is correct
35 Correct 11 ms 17244 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 17052 KB Output is correct
2 Correct 4 ms 16988 KB Output is correct
3 Correct 5 ms 16988 KB Output is correct
4 Correct 5 ms 17240 KB Output is correct
5 Correct 5 ms 16984 KB Output is correct
6 Correct 7 ms 16988 KB Output is correct
7 Correct 8 ms 16988 KB Output is correct
8 Correct 12 ms 17240 KB Output is correct
9 Correct 17 ms 17500 KB Output is correct
10 Correct 23 ms 17632 KB Output is correct
11 Correct 71 ms 21972 KB Output is correct
12 Correct 34 ms 18128 KB Output is correct
13 Correct 77 ms 18872 KB Output is correct
14 Correct 95 ms 20192 KB Output is correct
15 Correct 56 ms 22584 KB Output is correct
16 Correct 146 ms 20604 KB Output is correct
17 Correct 86 ms 18428 KB Output is correct
18 Correct 159 ms 23248 KB Output is correct
19 Correct 182 ms 23780 KB Output is correct
20 Correct 66 ms 18892 KB Output is correct

Subtask #4
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16984 KB Output is correct
2 Correct 7 ms 17044 KB Output is correct
3 Correct 4 ms 16984 KB Output is correct
4 Correct 4 ms 16984 KB Output is correct
5 Correct 5 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 4 ms 16988 KB Output is correct
8 Correct 4 ms 16988 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 4 ms 16984 KB Output is correct
11 Correct 4 ms 17048 KB Output is correct
12 Correct 4 ms 16988 KB Output is correct
13 Correct 4 ms 17052 KB Output is correct
14 Correct 4 ms 16988 KB Output is correct
15 Correct 4 ms 16988 KB Output is correct
16 Correct 5 ms 17048 KB Output is correct
17 Correct 5 ms 16988 KB Output is correct
18 Correct 5 ms 16984 KB Output is correct
19 Correct 6 ms 16988 KB Output is correct
20 Correct 10 ms 16984 KB Output is correct
21 Correct 11 ms 17244 KB Output is correct
22 Correct 13 ms 17244 KB Output is correct
23 Correct 11 ms 17240 KB Output is correct
24 Correct 10 ms 17244 KB Output is correct
25 Correct 11 ms 17268 KB Output is correct
26 Correct 11 ms 17280 KB Output is correct
27 Correct 11 ms 17240 KB Output is correct
28 Correct 11 ms 17244 KB Output is correct
29 Correct 10 ms 17244 KB Output is correct
30 Correct 10 ms 17244 KB Output is correct
31 Correct 10 ms 17164 KB Output is correct
32 Correct 11 ms 17244 KB Output is correct
33 Correct 14 ms 17240 KB Output is correct
34 Correct 12 ms 17244 KB Output is correct
35 Correct 11 ms 17244 KB Output is correct
36 Correct 5 ms 17052 KB Output is correct
37 Correct 4 ms 16988 KB Output is correct
38 Correct 5 ms 16988 KB Output is correct
39 Correct 5 ms 17240 KB Output is correct
40 Correct 5 ms 16984 KB Output is correct
41 Correct 7 ms 16988 KB Output is correct
42 Correct 8 ms 16988 KB Output is correct
43 Correct 12 ms 17240 KB Output is correct
44 Correct 17 ms 17500 KB Output is correct
45 Correct 23 ms 17632 KB Output is correct
46 Correct 71 ms 21972 KB Output is correct
47 Correct 34 ms 18128 KB Output is correct
48 Correct 77 ms 18872 KB Output is correct
49 Correct 95 ms 20192 KB Output is correct
50 Correct 56 ms 22584 KB Output is correct
51 Correct 146 ms 20604 KB Output is correct
52 Correct 86 ms 18428 KB Output is correct
53 Correct 159 ms 23248 KB Output is correct
54 Correct 182 ms 23780 KB Output is correct
55 Correct 66 ms 18892 KB Output is correct
56 Correct 17 ms 17492 KB Output is correct
57 Correct 38 ms 18008 KB Output is correct
58 Correct 59 ms 18340 KB Output is correct
59 Correct 91 ms 18900 KB Output is correct
60 Correct 121 ms 19416 KB Output is correct
61 Correct 137 ms 20116 KB Output is correct
62 Correct 148 ms 22832 KB Output is correct
63 Correct 189 ms 23624 KB Output is correct
64 Correct 203 ms 24016 KB Output is correct
65 Correct 281 ms 24208 KB Output is correct
66 Correct 272 ms 24272 KB Output is correct
67 Correct 253 ms 24456 KB Output is correct
68 Correct 261 ms 24360 KB Output is correct
69 Correct 268 ms 24336 KB Output is correct
70 Correct 304 ms 24592 KB Output is correct
71 Correct 279 ms 24616 KB Output is correct
72 Correct 284 ms 24628 KB Output is correct
73 Correct 283 ms 24616 KB Output is correct
74 Correct 316 ms 24532 KB Output is correct
75 Correct 283 ms 24532 KB Output is correct
76 Correct 296 ms 24592 KB Output is correct
77 Correct 271 ms 24688 KB Output is correct
78 Correct 284 ms 24568 KB Output is correct
79 Correct 265 ms 24504 KB Output is correct
80 Correct 275 ms 25044 KB Output is correct