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Submission #889668

# Submission time Handle Problem Language Result Execution time Memory
889668 2023-12-20T04:54:34 Z chanhchuong123 Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
100 / 100
 1050 ms 96820 KB 
#include<bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int Rand(int l, int r) {
	return uniform_int_distribution<int>(l, r)(rng);
}

const int MAX = 1000010;
int nArr;
int nQuery;
int arr[MAX];
int ans[MAX];
stack<int> s;
int st[(1 << 21) + 5];
vector<tuple<int, int, int>> queries[MAX];

void init(void) {
    cin >> nArr >> nQuery;
    for (int i = 1; i <= nArr; ++i) {
        cin >> arr[i];
    }
    for (int i = 1; i <= nQuery; ++i) {
        int l, r, k; cin >> l >> r >> k;
        queries[r].emplace_back(l, k, i);
    }
}

void update(int pos, int value) {
    int id = 1, l = 1, r = nArr;
    while (l < r) {
        int mid = l + r >> 1;
        if (pos <= mid) id <<= 1, r = mid;
        else id = id << 1 | 1, l = mid + 1;
    }
    st[id] = max(st[id], value);
    while (id > 1) {
        id >>= 1;
        st[id] = max(st[id << 1], st[id << 1 | 1]);
    }
}

int get(int id, int l, int r, int u, int v) {
    if (l > v || r < u) return 0;
    if (l >= u && r <= v) return st[id];
    int mid = l + r >> 1; return max(get(id << 1, l, mid, u, v), get(id << 1 | 1, mid + 1, r, u, v));
}
#define get(l, r) (get(1, 1, nArr, l, r))

void process(void) {
    for (int i = 1; i <= nArr; ++i) {
        while (s.size() && arr[s.top()] <= arr[i])   s.pop();
        if (s.size()) update(s.top(), arr[s.top()] + arr[i]);
        s.push(i);
        for (tuple<int, int, int> &qry: queries[i]) {
            int j, k, id; tie(j, k, id) = qry;
            ans[id] = get(j, i) <= k;
        }
    }
    for (int i = 1; i <= nQuery; ++i) {
        cout << ans[i] << '\n';
    }
}

int main(void) {
	ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
//	freopen("C.INP", "r",  stdin);
//	freopen("C.OUT", "w", stdout);

    init();
    process();

	return 0;
}

Compilation message

sortbooks.cpp: In function 'void update(int, int)':
sortbooks.cpp:36:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   36 |         int mid = l + r >> 1;
      |                   ~~^~~
sortbooks.cpp: In function 'int get(int, int, int, int, int)':
sortbooks.cpp:50:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |     int mid = l + r >> 1; return max(get(id << 1, l, mid, u, v), get(id << 1 | 1, mid + 1, r, u, v));
      |               ~~^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 29276 KB Output is correct
2 Correct 6 ms 29376 KB Output is correct
3 Correct 6 ms 29300 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29368 KB Output is correct
6 Correct 6 ms 29272 KB Output is correct
7 Correct 6 ms 29272 KB Output is correct
8 Correct 6 ms 29276 KB Output is correct
9 Correct 6 ms 29272 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 29276 KB Output is correct
2 Correct 6 ms 29376 KB Output is correct
3 Correct 6 ms 29300 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29368 KB Output is correct
6 Correct 6 ms 29272 KB Output is correct
7 Correct 6 ms 29272 KB Output is correct
8 Correct 6 ms 29276 KB Output is correct
9 Correct 6 ms 29272 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct
11 Correct 8 ms 29272 KB Output is correct
12 Correct 8 ms 29532 KB Output is correct
13 Correct 8 ms 29532 KB Output is correct
14 Correct 10 ms 29532 KB Output is correct
15 Correct 9 ms 29532 KB Output is correct
16 Correct 8 ms 29532 KB Output is correct
17 Correct 8 ms 29532 KB Output is correct
18 Correct 9 ms 29376 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1012 ms 95584 KB Output is correct
2 Correct 1050 ms 96552 KB Output is correct
3 Correct 1028 ms 96368 KB Output is correct
4 Correct 1008 ms 96592 KB Output is correct
5 Correct 911 ms 90452 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 33460 KB Output is correct
2 Correct 76 ms 33320 KB Output is correct
3 Correct 63 ms 33380 KB Output is correct
4 Correct 65 ms 33620 KB Output is correct
5 Correct 63 ms 33620 KB Output is correct
6 Correct 53 ms 33104 KB Output is correct
7 Correct 57 ms 32904 KB Output is correct
8 Correct 58 ms 33216 KB Output is correct
9 Correct 33 ms 32120 KB Output is correct
10 Correct 58 ms 33168 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 29276 KB Output is correct
2 Correct 6 ms 29376 KB Output is correct
3 Correct 6 ms 29300 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29368 KB Output is correct
6 Correct 6 ms 29272 KB Output is correct
7 Correct 6 ms 29272 KB Output is correct
8 Correct 6 ms 29276 KB Output is correct
9 Correct 6 ms 29272 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct
11 Correct 8 ms 29272 KB Output is correct
12 Correct 8 ms 29532 KB Output is correct
13 Correct 8 ms 29532 KB Output is correct
14 Correct 10 ms 29532 KB Output is correct
15 Correct 9 ms 29532 KB Output is correct
16 Correct 8 ms 29532 KB Output is correct
17 Correct 8 ms 29532 KB Output is correct
18 Correct 9 ms 29376 KB Output is correct
19 Correct 166 ms 41116 KB Output is correct
20 Correct 159 ms 41356 KB Output is correct
21 Correct 143 ms 40556 KB Output is correct
22 Correct 146 ms 40592 KB Output is correct
23 Correct 154 ms 40768 KB Output is correct
24 Correct 129 ms 39700 KB Output is correct
25 Correct 120 ms 39716 KB Output is correct
26 Correct 139 ms 40016 KB Output is correct
27 Correct 135 ms 39988 KB Output is correct
28 Correct 137 ms 40016 KB Output is correct
29 Correct 149 ms 40528 KB Output is correct
30 Correct 148 ms 40528 KB Output is correct
31 Correct 148 ms 40532 KB Output is correct
32 Correct 142 ms 40356 KB Output is correct
33 Correct 147 ms 40484 KB Output is correct
34 Correct 114 ms 39248 KB Output is correct
35 Correct 113 ms 39204 KB Output is correct
36 Correct 120 ms 39228 KB Output is correct
37 Correct 114 ms 38944 KB Output is correct
38 Correct 113 ms 39252 KB Output is correct
39 Correct 126 ms 38924 KB Output is correct
40 Correct 96 ms 37564 KB Output is correct
41 Correct 128 ms 38668 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 29276 KB Output is correct
2 Correct 6 ms 29376 KB Output is correct
3 Correct 6 ms 29300 KB Output is correct
4 Correct 6 ms 29276 KB Output is correct
5 Correct 6 ms 29368 KB Output is correct
6 Correct 6 ms 29272 KB Output is correct
7 Correct 6 ms 29272 KB Output is correct
8 Correct 6 ms 29276 KB Output is correct
9 Correct 6 ms 29272 KB Output is correct
10 Correct 6 ms 29276 KB Output is correct
11 Correct 8 ms 29272 KB Output is correct
12 Correct 8 ms 29532 KB Output is correct
13 Correct 8 ms 29532 KB Output is correct
14 Correct 10 ms 29532 KB Output is correct
15 Correct 9 ms 29532 KB Output is correct
16 Correct 8 ms 29532 KB Output is correct
17 Correct 8 ms 29532 KB Output is correct
18 Correct 9 ms 29376 KB Output is correct
19 Correct 1012 ms 95584 KB Output is correct
20 Correct 1050 ms 96552 KB Output is correct
21 Correct 1028 ms 96368 KB Output is correct
22 Correct 1008 ms 96592 KB Output is correct
23 Correct 911 ms 90452 KB Output is correct
24 Correct 74 ms 33460 KB Output is correct
25 Correct 76 ms 33320 KB Output is correct
26 Correct 63 ms 33380 KB Output is correct
27 Correct 65 ms 33620 KB Output is correct
28 Correct 63 ms 33620 KB Output is correct
29 Correct 53 ms 33104 KB Output is correct
30 Correct 57 ms 32904 KB Output is correct
31 Correct 58 ms 33216 KB Output is correct
32 Correct 33 ms 32120 KB Output is correct
33 Correct 58 ms 33168 KB Output is correct
34 Correct 166 ms 41116 KB Output is correct
35 Correct 159 ms 41356 KB Output is correct
36 Correct 143 ms 40556 KB Output is correct
37 Correct 146 ms 40592 KB Output is correct
38 Correct 154 ms 40768 KB Output is correct
39 Correct 129 ms 39700 KB Output is correct
40 Correct 120 ms 39716 KB Output is correct
41 Correct 139 ms 40016 KB Output is correct
42 Correct 135 ms 39988 KB Output is correct
43 Correct 137 ms 40016 KB Output is correct
44 Correct 149 ms 40528 KB Output is correct
45 Correct 148 ms 40528 KB Output is correct
46 Correct 148 ms 40532 KB Output is correct
47 Correct 142 ms 40356 KB Output is correct
48 Correct 147 ms 40484 KB Output is correct
49 Correct 114 ms 39248 KB Output is correct
50 Correct 113 ms 39204 KB Output is correct
51 Correct 120 ms 39228 KB Output is correct
52 Correct 114 ms 38944 KB Output is correct
53 Correct 113 ms 39252 KB Output is correct
54 Correct 126 ms 38924 KB Output is correct
55 Correct 96 ms 37564 KB Output is correct
56 Correct 128 ms 38668 KB Output is correct
57 Correct 1024 ms 96820 KB Output is correct
58 Correct 1012 ms 96700 KB Output is correct
59 Correct 935 ms 95056 KB Output is correct
60 Correct 937 ms 95208 KB Output is correct
61 Correct 947 ms 95052 KB Output is correct
62 Correct 930 ms 95056 KB Output is correct
63 Correct 621 ms 85664 KB Output is correct
64 Correct 656 ms 85844 KB Output is correct
65 Correct 815 ms 88916 KB Output is correct
66 Correct 811 ms 88708 KB Output is correct
67 Correct 991 ms 88756 KB Output is correct
68 Correct 968 ms 90656 KB Output is correct
69 Correct 1012 ms 90428 KB Output is correct
70 Correct 996 ms 90120 KB Output is correct
71 Correct 983 ms 90116 KB Output is correct
72 Correct 964 ms 90332 KB Output is correct
73 Correct 604 ms 81564 KB Output is correct
74 Correct 645 ms 82512 KB Output is correct
75 Correct 626 ms 81740 KB Output is correct
76 Correct 608 ms 81652 KB Output is correct
77 Correct 592 ms 81628 KB Output is correct
78 Correct 813 ms 85044 KB Output is correct
79 Correct 604 ms 75200 KB Output is correct
80 Correct 760 ms 80048 KB Output is correct