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Submission #871710

# Submission time Handle Problem Language Result Execution time Memory
871710 2023-11-11T11:00:23 Z serifefedartar Strange Device (APIO19_strange_device) C++17
100 / 100
 743 ms 125496 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 1e9+9;
const ll LOGN = 20; 
const ll MAXN = 6 * 1e6 + 50;

vector<pair<ll,ll>> v;
vector<ll> cc;
ll calc(ll A, ll B) {
	return 1e18 / A < B ? 1e18 : A / __gcd(A, B + 1) * B;
	if (1e18 / A < B)
		return 1e18;
	if (1e18 / B < A)
		return 1e18;
	return A * B;
}

int index(ll k) {
	return upper_bound(cc.begin(), cc.end(), k) - cc.begin();
}
ll cnt[MAXN];

int main() {
	fast
	ll n, A, B;
	cin >> n >> A >> B;

	ll period = calc(A, B);
	for (int i = 1; i <= n; i++) {
		ll l, r;
		cin >> l >> r;
		ll left_mod = l % period;
		ll right_mod = r % period;
		if (r - l + 1 > period - left_mod) {
			v.push_back({left_mod, period - 1});
			v.push_back({0, right_mod});
		} else
			v.push_back({left_mod, right_mod});
	}

	for (auto u : v) {
		cc.push_back(u.f);
		cc.push_back(u.s);
		cc.push_back(u.s+1);
	}
	sort(cc.begin(), cc.end());
	cc.erase(unique(cc.begin(), cc.end()), cc.end());

	for (auto u : v) {
		cnt[index(u.f)]++;
		cnt[index(u.s + 1)]--;
	}
	for (int i = 1; i < MAXN; i++)
		cnt[i] += cnt[i-1];

	ll ans = 0;
	for (int i = 0; i < cc.size() - 1; i++) {
		if (cnt[i+1]) {
			ans += cc[i+1] - cc[i];
		}
	}
	cout << ans << "\n";
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:62:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |  for (int i = 0; i < cc.size() - 1; i++) {
      |                  ~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47184 KB Output is correct
2 Correct 24 ms 48204 KB Output is correct
3 Correct 24 ms 48204 KB Output is correct
4 Correct 18 ms 47312 KB Output is correct
5 Correct 18 ms 47196 KB Output is correct
6 Correct 18 ms 47316 KB Output is correct
7 Correct 18 ms 47188 KB Output is correct
8 Correct 18 ms 47192 KB Output is correct
9 Correct 18 ms 47196 KB Output is correct
10 Correct 18 ms 47196 KB Output is correct
11 Correct 18 ms 47192 KB Output is correct
12 Correct 18 ms 47196 KB Output is correct
13 Correct 18 ms 47188 KB Output is correct
14 Correct 19 ms 47196 KB Output is correct
15 Correct 18 ms 47308 KB Output is correct
16 Correct 23 ms 48220 KB Output is correct
17 Correct 85 ms 56644 KB Output is correct
18 Correct 19 ms 47280 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 47192 KB Output is correct
2 Correct 18 ms 47192 KB Output is correct
3 Correct 18 ms 47196 KB Output is correct
4 Correct 18 ms 47196 KB Output is correct
5 Correct 18 ms 47188 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47256 KB Output is correct
2 Correct 19 ms 47444 KB Output is correct
3 Correct 21 ms 47316 KB Output is correct
4 Correct 19 ms 47396 KB Output is correct
5 Correct 274 ms 100684 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47196 KB Output is correct
2 Correct 556 ms 105508 KB Output is correct
3 Correct 602 ms 106788 KB Output is correct
4 Correct 576 ms 125292 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47196 KB Output is correct
2 Correct 556 ms 105508 KB Output is correct
3 Correct 602 ms 106788 KB Output is correct
4 Correct 576 ms 125292 KB Output is correct
5 Correct 20 ms 47196 KB Output is correct
6 Correct 620 ms 124476 KB Output is correct
7 Correct 554 ms 125120 KB Output is correct
8 Correct 595 ms 125188 KB Output is correct
9 Correct 689 ms 125104 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47196 KB Output is correct
2 Correct 556 ms 105508 KB Output is correct
3 Correct 602 ms 106788 KB Output is correct
4 Correct 576 ms 125292 KB Output is correct
5 Correct 19 ms 47192 KB Output is correct
6 Correct 79 ms 55448 KB Output is correct
7 Correct 79 ms 56488 KB Output is correct
8 Correct 78 ms 55012 KB Output is correct
9 Correct 77 ms 55732 KB Output is correct
10 Correct 69 ms 55360 KB Output is correct
11 Correct 73 ms 55412 KB Output is correct
12 Correct 70 ms 55780 KB Output is correct
13 Correct 92 ms 55416 KB Output is correct
14 Correct 68 ms 56412 KB Output is correct
15 Correct 91 ms 55940 KB Output is correct
16 Correct 84 ms 56488 KB Output is correct
17 Correct 72 ms 56136 KB Output is correct
18 Correct 645 ms 125496 KB Output is correct
19 Correct 574 ms 125164 KB Output is correct
20 Correct 699 ms 124328 KB Output is correct
21 Correct 93 ms 55136 KB Output is correct
22 Correct 64 ms 55452 KB Output is correct
23 Correct 140 ms 74916 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 47188 KB Output is correct
2 Correct 78 ms 54264 KB Output is correct
3 Correct 79 ms 53768 KB Output is correct
4 Correct 743 ms 105464 KB Output is correct
5 Correct 83 ms 54616 KB Output is correct
6 Correct 79 ms 53400 KB Output is correct
7 Correct 81 ms 54264 KB Output is correct
8 Correct 84 ms 53828 KB Output is correct
9 Correct 77 ms 54056 KB Output is correct
10 Correct 81 ms 53780 KB Output is correct
11 Correct 96 ms 53988 KB Output is correct
12 Correct 71 ms 54588 KB Output is correct
13 Correct 86 ms 55156 KB Output is correct
14 Correct 678 ms 106564 KB Output is correct
15 Correct 84 ms 54336 KB Output is correct
16 Correct 606 ms 124648 KB Output is correct
17 Correct 671 ms 124500 KB Output is correct
18 Correct 19 ms 47196 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47184 KB Output is correct
2 Correct 24 ms 48204 KB Output is correct
3 Correct 24 ms 48204 KB Output is correct
4 Correct 18 ms 47312 KB Output is correct
5 Correct 18 ms 47196 KB Output is correct
6 Correct 18 ms 47316 KB Output is correct
7 Correct 18 ms 47188 KB Output is correct
8 Correct 18 ms 47192 KB Output is correct
9 Correct 18 ms 47196 KB Output is correct
10 Correct 18 ms 47196 KB Output is correct
11 Correct 18 ms 47192 KB Output is correct
12 Correct 18 ms 47196 KB Output is correct
13 Correct 18 ms 47188 KB Output is correct
14 Correct 19 ms 47196 KB Output is correct
15 Correct 18 ms 47308 KB Output is correct
16 Correct 23 ms 48220 KB Output is correct
17 Correct 85 ms 56644 KB Output is correct
18 Correct 19 ms 47280 KB Output is correct
19 Correct 19 ms 47192 KB Output is correct
20 Correct 18 ms 47192 KB Output is correct
21 Correct 18 ms 47196 KB Output is correct
22 Correct 18 ms 47196 KB Output is correct
23 Correct 18 ms 47188 KB Output is correct
24 Correct 20 ms 47256 KB Output is correct
25 Correct 19 ms 47444 KB Output is correct
26 Correct 21 ms 47316 KB Output is correct
27 Correct 19 ms 47396 KB Output is correct
28 Correct 274 ms 100684 KB Output is correct
29 Correct 20 ms 47196 KB Output is correct
30 Correct 556 ms 105508 KB Output is correct
31 Correct 602 ms 106788 KB Output is correct
32 Correct 576 ms 125292 KB Output is correct
33 Correct 20 ms 47196 KB Output is correct
34 Correct 620 ms 124476 KB Output is correct
35 Correct 554 ms 125120 KB Output is correct
36 Correct 595 ms 125188 KB Output is correct
37 Correct 689 ms 125104 KB Output is correct
38 Correct 19 ms 47192 KB Output is correct
39 Correct 79 ms 55448 KB Output is correct
40 Correct 79 ms 56488 KB Output is correct
41 Correct 78 ms 55012 KB Output is correct
42 Correct 77 ms 55732 KB Output is correct
43 Correct 69 ms 55360 KB Output is correct
44 Correct 73 ms 55412 KB Output is correct
45 Correct 70 ms 55780 KB Output is correct
46 Correct 92 ms 55416 KB Output is correct
47 Correct 68 ms 56412 KB Output is correct
48 Correct 91 ms 55940 KB Output is correct
49 Correct 84 ms 56488 KB Output is correct
50 Correct 72 ms 56136 KB Output is correct
51 Correct 645 ms 125496 KB Output is correct
52 Correct 574 ms 125164 KB Output is correct
53 Correct 699 ms 124328 KB Output is correct
54 Correct 93 ms 55136 KB Output is correct
55 Correct 64 ms 55452 KB Output is correct
56 Correct 140 ms 74916 KB Output is correct
57 Correct 18 ms 47188 KB Output is correct
58 Correct 78 ms 54264 KB Output is correct
59 Correct 79 ms 53768 KB Output is correct
60 Correct 743 ms 105464 KB Output is correct
61 Correct 83 ms 54616 KB Output is correct
62 Correct 79 ms 53400 KB Output is correct
63 Correct 81 ms 54264 KB Output is correct
64 Correct 84 ms 53828 KB Output is correct
65 Correct 77 ms 54056 KB Output is correct
66 Correct 81 ms 53780 KB Output is correct
67 Correct 96 ms 53988 KB Output is correct
68 Correct 71 ms 54588 KB Output is correct
69 Correct 86 ms 55156 KB Output is correct
70 Correct 678 ms 106564 KB Output is correct
71 Correct 84 ms 54336 KB Output is correct
72 Correct 606 ms 124648 KB Output is correct
73 Correct 671 ms 124500 KB Output is correct
74 Correct 19 ms 47196 KB Output is correct
75 Correct 19 ms 47192 KB Output is correct
76 Correct 18 ms 47288 KB Output is correct
77 Correct 19 ms 47448 KB Output is correct
78 Correct 24 ms 47188 KB Output is correct
79 Correct 25 ms 48216 KB Output is correct
80 Correct 740 ms 123932 KB Output is correct
81 Correct 719 ms 125204 KB Output is correct
82 Correct 689 ms 123932 KB Output is correct
83 Correct 697 ms 125084 KB Output is correct
84 Correct 670 ms 125464 KB Output is correct
85 Correct 680 ms 124112 KB Output is correct
86 Correct 151 ms 73256 KB Output is correct
87 Correct 31 ms 47188 KB Output is correct