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Submission #520898

# Submission time Handle Problem Language Result Execution time Memory
520898 2022-01-31T12:33:40 Z shmad Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
100 / 100
 1130 ms 131952 KB 
#pragma GCC optimize("O3", "unroll-loops") // "Ofast"
#pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt") 

#include <bits/stdc++.h>

#define int long long
#define vt vector
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define ff first
#define ss second
#define dbg(x) cerr << #x << " = " << x << '\n'

using namespace std;
using ll = long long;
using pii = pair<int, int>;
using vvi = vt< vt<int> >;         

const int N = 1e6 + 5, mod = 1e9 + 7, inf = 1e18 + 7, B = 500, LIM = (1ll << 60);
const double eps = 1e-6;

struct Event {
	int l, r, k;
};

vt<Event> g[N];
int n, m, t[4 * N], w[N], ans[N], L[N];
stack<int> s;

void upd (int pos, int val, int x = 1, int tl = 1, int tr = n) {
	if (tl == tr) {
		t[x] = max(t[x], val);
		return;
	}
	int tm = tl + tr >> 1, v = x + 1, u = x + ((tm - tl + 1) << 1);
	if (pos <= tm) upd(pos, val, v, tl, tm);
	else upd(pos, val, u, tm + 1, tr);
	t[x] = max(t[v], t[u]);
}

int get (int l, int r, int x = 1, int tl = 1, int tr = n) {
	if (tl > r || tr < l) return 0;
	if (tl >= l && tr <= r) return t[x];
	int tm = tl + tr >> 1, v = x + 1, u = x + ((tm - tl + 1) << 1);
	int a = get(l, r, v, tl, tm);
	int b = get(l, r, u, tm + 1, tr);
	return max(a, b);
}

void solve () {
	cin >> n >> m;
	for (int i = 1; i <= n; i++) cin >> w[i];
	for (int q = 1; q <= m; q++) {
		int l, r, k;
		cin >> l >> r >> k;
		g[r].pb({l, k, q});
	}
	for (int i = 1; i <= n; i++) {
		L[i] = i;
		while (!s.empty() && w[s.top()] <= w[i]) {
			L[i] = L[s.top()];
			s.pop();
		}
		s.push(i);
	}
	for (int i = 1; i <= n; i++) {
		int j = L[i] - 1;
		if (j) upd(j, w[i] + w[j]);
		for (auto [l, k, id]: g[i]) ans[id] = (get(l, n) <= k);
	}
	for (int i = 1; i <= m; i++) cout << ans[i] << '\n';
	cout << '\n';
}

bool testcases = 0;
                  
signed main() {
#ifdef ONLINE_JUDGE
	freopen(".in", "r", stdin);
	freopen(".out", "w", stdout);
#endif
    cin.tie(0) -> sync_with_stdio(0);
    int test = 1;
    if (testcases) cin >> test;
    for (int cs = 1; cs <= test; cs++) {
        solve();
    }
}

Compilation message

sortbooks.cpp: In function 'void upd(long long int, long long int, long long int, long long int, long long int)':
sortbooks.cpp:36:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   36 |  int tm = tl + tr >> 1, v = x + 1, u = x + ((tm - tl + 1) << 1);
      |           ~~~^~~~
sortbooks.cpp: In function 'long long int get(long long int, long long int, long long int, long long int, long long int)':
sortbooks.cpp:45:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 |  int tm = tl + tr >> 1, v = x + 1, u = x + ((tm - tl + 1) << 1);
      |           ~~~^~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23756 KB Output is correct
2 Correct 13 ms 23756 KB Output is correct
3 Correct 13 ms 23756 KB Output is correct
4 Correct 14 ms 23804 KB Output is correct
5 Correct 13 ms 23884 KB Output is correct
6 Correct 14 ms 23884 KB Output is correct
7 Correct 13 ms 23884 KB Output is correct
8 Correct 14 ms 23812 KB Output is correct
9 Correct 14 ms 23756 KB Output is correct
10 Correct 14 ms 23756 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23756 KB Output is correct
2 Correct 13 ms 23756 KB Output is correct
3 Correct 13 ms 23756 KB Output is correct
4 Correct 14 ms 23804 KB Output is correct
5 Correct 13 ms 23884 KB Output is correct
6 Correct 14 ms 23884 KB Output is correct
7 Correct 13 ms 23884 KB Output is correct
8 Correct 14 ms 23812 KB Output is correct
9 Correct 14 ms 23756 KB Output is correct
10 Correct 14 ms 23756 KB Output is correct
11 Correct 15 ms 24084 KB Output is correct
12 Correct 16 ms 24124 KB Output is correct
13 Correct 18 ms 24200 KB Output is correct
14 Correct 16 ms 24356 KB Output is correct
15 Correct 17 ms 24332 KB Output is correct
16 Correct 16 ms 24192 KB Output is correct
17 Correct 15 ms 24140 KB Output is correct
18 Correct 16 ms 24292 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1065 ms 97516 KB Output is correct
2 Correct 1097 ms 97552 KB Output is correct
3 Correct 1108 ms 97420 KB Output is correct
4 Correct 1097 ms 97532 KB Output is correct
5 Correct 885 ms 81856 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 31220 KB Output is correct
2 Correct 87 ms 33216 KB Output is correct
3 Correct 82 ms 31628 KB Output is correct
4 Correct 71 ms 31624 KB Output is correct
5 Correct 69 ms 31552 KB Output is correct
6 Correct 63 ms 31560 KB Output is correct
7 Correct 62 ms 31556 KB Output is correct
8 Correct 67 ms 31004 KB Output is correct
9 Correct 48 ms 29024 KB Output is correct
10 Correct 66 ms 30916 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23756 KB Output is correct
2 Correct 13 ms 23756 KB Output is correct
3 Correct 13 ms 23756 KB Output is correct
4 Correct 14 ms 23804 KB Output is correct
5 Correct 13 ms 23884 KB Output is correct
6 Correct 14 ms 23884 KB Output is correct
7 Correct 13 ms 23884 KB Output is correct
8 Correct 14 ms 23812 KB Output is correct
9 Correct 14 ms 23756 KB Output is correct
10 Correct 14 ms 23756 KB Output is correct
11 Correct 15 ms 24084 KB Output is correct
12 Correct 16 ms 24124 KB Output is correct
13 Correct 18 ms 24200 KB Output is correct
14 Correct 16 ms 24356 KB Output is correct
15 Correct 17 ms 24332 KB Output is correct
16 Correct 16 ms 24192 KB Output is correct
17 Correct 15 ms 24140 KB Output is correct
18 Correct 16 ms 24292 KB Output is correct
19 Correct 187 ms 45060 KB Output is correct
20 Correct 189 ms 45124 KB Output is correct
21 Correct 158 ms 45572 KB Output is correct
22 Correct 157 ms 45500 KB Output is correct
23 Correct 152 ms 45480 KB Output is correct
24 Correct 129 ms 42392 KB Output is correct
25 Correct 131 ms 42436 KB Output is correct
26 Correct 150 ms 42368 KB Output is correct
27 Correct 152 ms 42244 KB Output is correct
28 Correct 158 ms 42124 KB Output is correct
29 Correct 164 ms 41992 KB Output is correct
30 Correct 165 ms 42092 KB Output is correct
31 Correct 167 ms 42112 KB Output is correct
32 Correct 165 ms 41980 KB Output is correct
33 Correct 162 ms 41940 KB Output is correct
34 Correct 124 ms 41792 KB Output is correct
35 Correct 132 ms 41864 KB Output is correct
36 Correct 116 ms 41540 KB Output is correct
37 Correct 120 ms 41620 KB Output is correct
38 Correct 123 ms 41772 KB Output is correct
39 Correct 146 ms 41184 KB Output is correct
40 Correct 116 ms 37860 KB Output is correct
41 Correct 138 ms 39536 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 23756 KB Output is correct
2 Correct 13 ms 23756 KB Output is correct
3 Correct 13 ms 23756 KB Output is correct
4 Correct 14 ms 23804 KB Output is correct
5 Correct 13 ms 23884 KB Output is correct
6 Correct 14 ms 23884 KB Output is correct
7 Correct 13 ms 23884 KB Output is correct
8 Correct 14 ms 23812 KB Output is correct
9 Correct 14 ms 23756 KB Output is correct
10 Correct 14 ms 23756 KB Output is correct
11 Correct 15 ms 24084 KB Output is correct
12 Correct 16 ms 24124 KB Output is correct
13 Correct 18 ms 24200 KB Output is correct
14 Correct 16 ms 24356 KB Output is correct
15 Correct 17 ms 24332 KB Output is correct
16 Correct 16 ms 24192 KB Output is correct
17 Correct 15 ms 24140 KB Output is correct
18 Correct 16 ms 24292 KB Output is correct
19 Correct 1065 ms 97516 KB Output is correct
20 Correct 1097 ms 97552 KB Output is correct
21 Correct 1108 ms 97420 KB Output is correct
22 Correct 1097 ms 97532 KB Output is correct
23 Correct 885 ms 81856 KB Output is correct
24 Correct 82 ms 31220 KB Output is correct
25 Correct 87 ms 33216 KB Output is correct
26 Correct 82 ms 31628 KB Output is correct
27 Correct 71 ms 31624 KB Output is correct
28 Correct 69 ms 31552 KB Output is correct
29 Correct 63 ms 31560 KB Output is correct
30 Correct 62 ms 31556 KB Output is correct
31 Correct 67 ms 31004 KB Output is correct
32 Correct 48 ms 29024 KB Output is correct
33 Correct 66 ms 30916 KB Output is correct
34 Correct 187 ms 45060 KB Output is correct
35 Correct 189 ms 45124 KB Output is correct
36 Correct 158 ms 45572 KB Output is correct
37 Correct 157 ms 45500 KB Output is correct
38 Correct 152 ms 45480 KB Output is correct
39 Correct 129 ms 42392 KB Output is correct
40 Correct 131 ms 42436 KB Output is correct
41 Correct 150 ms 42368 KB Output is correct
42 Correct 152 ms 42244 KB Output is correct
43 Correct 158 ms 42124 KB Output is correct
44 Correct 164 ms 41992 KB Output is correct
45 Correct 165 ms 42092 KB Output is correct
46 Correct 167 ms 42112 KB Output is correct
47 Correct 165 ms 41980 KB Output is correct
48 Correct 162 ms 41940 KB Output is correct
49 Correct 124 ms 41792 KB Output is correct
50 Correct 132 ms 41864 KB Output is correct
51 Correct 116 ms 41540 KB Output is correct
52 Correct 120 ms 41620 KB Output is correct
53 Correct 123 ms 41772 KB Output is correct
54 Correct 146 ms 41184 KB Output is correct
55 Correct 116 ms 37860 KB Output is correct
56 Correct 138 ms 39536 KB Output is correct
57 Correct 1123 ms 131124 KB Output is correct
58 Correct 1130 ms 131196 KB Output is correct
59 Correct 1038 ms 131952 KB Output is correct
60 Correct 1037 ms 131892 KB Output is correct
61 Correct 1038 ms 131756 KB Output is correct
62 Correct 1037 ms 131904 KB Output is correct
63 Correct 644 ms 116076 KB Output is correct
64 Correct 652 ms 116216 KB Output is correct
65 Correct 871 ms 116536 KB Output is correct
66 Correct 873 ms 116308 KB Output is correct
67 Correct 868 ms 116316 KB Output is correct
68 Correct 927 ms 115512 KB Output is correct
69 Correct 919 ms 115388 KB Output is correct
70 Correct 922 ms 111308 KB Output is correct
71 Correct 932 ms 114780 KB Output is correct
72 Correct 906 ms 109276 KB Output is correct
73 Correct 581 ms 86888 KB Output is correct
74 Correct 596 ms 87304 KB Output is correct
75 Correct 595 ms 87404 KB Output is correct
76 Correct 560 ms 87760 KB Output is correct
77 Correct 571 ms 87024 KB Output is correct
78 Correct 803 ms 91732 KB Output is correct
79 Correct 589 ms 75612 KB Output is correct
80 Correct 782 ms 85268 KB Output is correct