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Submission #212663

# Submission time Handle Problem Language Result Execution time Memory
212663 2020-03-24T03:41:27 Z vioalbert Strange Device (APIO19_strange_device) C++14
100 / 100
 656 ms 69932 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll n, a, b;
pair<ll, ll> t[2000005];
stack<pair<ll, ll>> st;

ll gcd(ll a, ll b) {
	if(b == 0) return a;
	else return gcd(b, a%b);
}

int main() {
	ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	cin >> n >> a >> b;
	ll g = gcd(a,b+1);
	ll k = a/g;
	ll tlimit = k * b;

	int idx = 0;
	for(int i = 0; i < n; i++) {
		ll l, r; cin >> l >> r;
		if(l/tlimit == r/tlimit) {
			t[idx++] = make_pair(l%tlimit, r%tlimit);
		} else if(l/tlimit == (r/tlimit - 1)) {
			t[idx++] = make_pair(l%tlimit, tlimit-1);
			t[idx++] = make_pair(0ll, r%tlimit);
		} else {
			t[idx++] = make_pair(0ll, tlimit-1);
		}
	}
	sort(t, t+idx);

	st.push(t[0]);
	for(int i = 1; i < idx; i++) {
		if(st.top().second < t[i].first)
			st.push(t[i]);
		else if(st.top().second < t[i].second)
			st.top().second = t[i].second; 
	}

	ll ans = 0;
	while(!st.empty()) {
		ans += 1ll * (st.top().second - st.top().first + 1);
		st.pop();
	}

	cout << ans << '\n';

	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 10 ms 768 KB Output is correct
3 Correct 10 ms 768 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 9 ms 768 KB Output is correct
17 Correct 58 ms 3836 KB Output is correct
18 Correct 5 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 367 ms 16188 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 508 ms 32428 KB Output is correct
3 Correct 510 ms 32556 KB Output is correct
4 Correct 489 ms 32428 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 508 ms 32428 KB Output is correct
3 Correct 510 ms 32556 KB Output is correct
4 Correct 489 ms 32428 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 483 ms 32456 KB Output is correct
7 Correct 495 ms 32556 KB Output is correct
8 Correct 500 ms 32428 KB Output is correct
9 Correct 656 ms 32640 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 508 ms 32428 KB Output is correct
3 Correct 510 ms 32556 KB Output is correct
4 Correct 489 ms 32428 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 55 ms 3704 KB Output is correct
7 Correct 59 ms 3704 KB Output is correct
8 Correct 53 ms 3704 KB Output is correct
9 Correct 75 ms 3716 KB Output is correct
10 Correct 52 ms 3644 KB Output is correct
11 Correct 53 ms 3704 KB Output is correct
12 Correct 52 ms 3704 KB Output is correct
13 Correct 54 ms 3704 KB Output is correct
14 Correct 52 ms 3704 KB Output is correct
15 Correct 57 ms 3704 KB Output is correct
16 Correct 55 ms 3704 KB Output is correct
17 Correct 54 ms 3704 KB Output is correct
18 Correct 501 ms 32684 KB Output is correct
19 Correct 493 ms 32428 KB Output is correct
20 Correct 547 ms 32444 KB Output is correct
21 Correct 58 ms 3704 KB Output is correct
22 Correct 56 ms 3704 KB Output is correct
23 Correct 158 ms 5752 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 56 ms 3576 KB Output is correct
3 Correct 59 ms 3704 KB Output is correct
4 Correct 576 ms 32556 KB Output is correct
5 Correct 56 ms 3704 KB Output is correct
6 Correct 57 ms 3704 KB Output is correct
7 Correct 57 ms 3704 KB Output is correct
8 Correct 56 ms 3704 KB Output is correct
9 Correct 55 ms 3704 KB Output is correct
10 Correct 56 ms 3704 KB Output is correct
11 Correct 56 ms 3704 KB Output is correct
12 Correct 50 ms 3708 KB Output is correct
13 Correct 56 ms 3704 KB Output is correct
14 Correct 538 ms 32428 KB Output is correct
15 Correct 56 ms 3448 KB Output is correct
16 Correct 499 ms 32564 KB Output is correct
17 Correct 475 ms 32428 KB Output is correct
18 Correct 5 ms 384 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 10 ms 768 KB Output is correct
3 Correct 10 ms 768 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 9 ms 768 KB Output is correct
17 Correct 58 ms 3836 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 367 ms 16188 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 508 ms 32428 KB Output is correct
31 Correct 510 ms 32556 KB Output is correct
32 Correct 489 ms 32428 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 483 ms 32456 KB Output is correct
35 Correct 495 ms 32556 KB Output is correct
36 Correct 500 ms 32428 KB Output is correct
37 Correct 656 ms 32640 KB Output is correct
38 Correct 4 ms 256 KB Output is correct
39 Correct 55 ms 3704 KB Output is correct
40 Correct 59 ms 3704 KB Output is correct
41 Correct 53 ms 3704 KB Output is correct
42 Correct 75 ms 3716 KB Output is correct
43 Correct 52 ms 3644 KB Output is correct
44 Correct 53 ms 3704 KB Output is correct
45 Correct 52 ms 3704 KB Output is correct
46 Correct 54 ms 3704 KB Output is correct
47 Correct 52 ms 3704 KB Output is correct
48 Correct 57 ms 3704 KB Output is correct
49 Correct 55 ms 3704 KB Output is correct
50 Correct 54 ms 3704 KB Output is correct
51 Correct 501 ms 32684 KB Output is correct
52 Correct 493 ms 32428 KB Output is correct
53 Correct 547 ms 32444 KB Output is correct
54 Correct 58 ms 3704 KB Output is correct
55 Correct 56 ms 3704 KB Output is correct
56 Correct 158 ms 5752 KB Output is correct
57 Correct 5 ms 384 KB Output is correct
58 Correct 56 ms 3576 KB Output is correct
59 Correct 59 ms 3704 KB Output is correct
60 Correct 576 ms 32556 KB Output is correct
61 Correct 56 ms 3704 KB Output is correct
62 Correct 57 ms 3704 KB Output is correct
63 Correct 57 ms 3704 KB Output is correct
64 Correct 56 ms 3704 KB Output is correct
65 Correct 55 ms 3704 KB Output is correct
66 Correct 56 ms 3704 KB Output is correct
67 Correct 56 ms 3704 KB Output is correct
68 Correct 50 ms 3708 KB Output is correct
69 Correct 56 ms 3704 KB Output is correct
70 Correct 538 ms 32428 KB Output is correct
71 Correct 56 ms 3448 KB Output is correct
72 Correct 499 ms 32564 KB Output is correct
73 Correct 475 ms 32428 KB Output is correct
74 Correct 5 ms 384 KB Output is correct
75 Correct 4 ms 384 KB Output is correct
76 Correct 4 ms 384 KB Output is correct
77 Correct 5 ms 384 KB Output is correct
78 Correct 4 ms 384 KB Output is correct
79 Correct 9 ms 1024 KB Output is correct
80 Correct 612 ms 69932 KB Output is correct
81 Correct 568 ms 69676 KB Output is correct
82 Correct 548 ms 69548 KB Output is correct
83 Correct 561 ms 69792 KB Output is correct
84 Correct 557 ms 69668 KB Output is correct
85 Correct 540 ms 69668 KB Output is correct
86 Correct 156 ms 18296 KB Output is correct
87 Correct 5 ms 384 KB Output is correct