#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 1e6 + 66;
int n; ll A, B;
vector<pair<ll,ll>> v;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
cin >> n >> A >> B;
ll g = gcd(A, B + 1), I;
if (A / g > ll(2e18) / B) {
I = ll(2e18);
} else {
I = A * B / g;
}
for (int i = 1 ; i <= n ; ++ i) {
ll l, r;
cin >> l >> r;
if (r - l + 1 >= I) {
cout << I << "\n";
return 0;
}
ll L = l % I, R = r % I;
if (L <= R) {
v.emplace_back(L, +1);
v.emplace_back(R + 1, -1);
} else {
v.emplace_back(0, +1);
v.emplace_back(R + 1, -1);
v.emplace_back(L, +1);
v.emplace_back(I, -1);
}
}
sort(v.begin(), v.end());
ll k = 0, l = -1, Ans = 0;
for (auto [i, t] : v) {
if (t == +1) {
if (k++ == 0) l = i;
} else if (--k == 0) Ans += i - l, l = i;
}
cout << Ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
9 ms |
1392 KB |
Output is correct |
3 |
Correct |
7 ms |
1392 KB |
Output is correct |
4 |
Correct |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
7 ms |
1392 KB |
Output is correct |
17 |
Correct |
72 ms |
7584 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
492 KB |
Output is correct |
3 |
Correct |
1 ms |
492 KB |
Output is correct |
4 |
Correct |
1 ms |
492 KB |
Output is correct |
5 |
Correct |
426 ms |
34492 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
602 ms |
35516 KB |
Output is correct |
3 |
Correct |
643 ms |
35388 KB |
Output is correct |
4 |
Correct |
592 ms |
35516 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
602 ms |
35516 KB |
Output is correct |
3 |
Correct |
643 ms |
35388 KB |
Output is correct |
4 |
Correct |
592 ms |
35516 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
638 ms |
35512 KB |
Output is correct |
7 |
Correct |
603 ms |
35644 KB |
Output is correct |
8 |
Correct |
613 ms |
34808 KB |
Output is correct |
9 |
Correct |
703 ms |
35096 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
602 ms |
35516 KB |
Output is correct |
3 |
Correct |
643 ms |
35388 KB |
Output is correct |
4 |
Correct |
592 ms |
35516 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
60 ms |
7268 KB |
Output is correct |
7 |
Correct |
64 ms |
7400 KB |
Output is correct |
8 |
Correct |
60 ms |
7392 KB |
Output is correct |
9 |
Correct |
65 ms |
7268 KB |
Output is correct |
10 |
Correct |
60 ms |
7268 KB |
Output is correct |
11 |
Correct |
61 ms |
7268 KB |
Output is correct |
12 |
Correct |
57 ms |
7268 KB |
Output is correct |
13 |
Correct |
64 ms |
7268 KB |
Output is correct |
14 |
Correct |
59 ms |
7268 KB |
Output is correct |
15 |
Correct |
68 ms |
7388 KB |
Output is correct |
16 |
Correct |
79 ms |
7268 KB |
Output is correct |
17 |
Correct |
60 ms |
7268 KB |
Output is correct |
18 |
Correct |
618 ms |
35900 KB |
Output is correct |
19 |
Correct |
584 ms |
36352 KB |
Output is correct |
20 |
Correct |
711 ms |
35556 KB |
Output is correct |
21 |
Correct |
67 ms |
7268 KB |
Output is correct |
22 |
Correct |
54 ms |
7268 KB |
Output is correct |
23 |
Correct |
177 ms |
26832 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
65 ms |
7268 KB |
Output is correct |
3 |
Correct |
65 ms |
7268 KB |
Output is correct |
4 |
Correct |
738 ms |
35408 KB |
Output is correct |
5 |
Correct |
81 ms |
7268 KB |
Output is correct |
6 |
Correct |
65 ms |
7268 KB |
Output is correct |
7 |
Correct |
64 ms |
7268 KB |
Output is correct |
8 |
Correct |
68 ms |
7392 KB |
Output is correct |
9 |
Correct |
64 ms |
7268 KB |
Output is correct |
10 |
Correct |
68 ms |
7392 KB |
Output is correct |
11 |
Correct |
64 ms |
7268 KB |
Output is correct |
12 |
Correct |
59 ms |
7432 KB |
Output is correct |
13 |
Correct |
69 ms |
7268 KB |
Output is correct |
14 |
Correct |
715 ms |
39484 KB |
Output is correct |
15 |
Correct |
70 ms |
7412 KB |
Output is correct |
16 |
Correct |
578 ms |
39520 KB |
Output is correct |
17 |
Correct |
626 ms |
39620 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
9 ms |
1392 KB |
Output is correct |
3 |
Correct |
7 ms |
1392 KB |
Output is correct |
4 |
Correct |
0 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
7 ms |
1392 KB |
Output is correct |
17 |
Correct |
72 ms |
7584 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
2 ms |
364 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
1 ms |
364 KB |
Output is correct |
23 |
Correct |
1 ms |
364 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
25 |
Correct |
1 ms |
492 KB |
Output is correct |
26 |
Correct |
1 ms |
492 KB |
Output is correct |
27 |
Correct |
1 ms |
492 KB |
Output is correct |
28 |
Correct |
426 ms |
34492 KB |
Output is correct |
29 |
Correct |
1 ms |
364 KB |
Output is correct |
30 |
Correct |
602 ms |
35516 KB |
Output is correct |
31 |
Correct |
643 ms |
35388 KB |
Output is correct |
32 |
Correct |
592 ms |
35516 KB |
Output is correct |
33 |
Correct |
1 ms |
364 KB |
Output is correct |
34 |
Correct |
638 ms |
35512 KB |
Output is correct |
35 |
Correct |
603 ms |
35644 KB |
Output is correct |
36 |
Correct |
613 ms |
34808 KB |
Output is correct |
37 |
Correct |
703 ms |
35096 KB |
Output is correct |
38 |
Correct |
1 ms |
364 KB |
Output is correct |
39 |
Correct |
60 ms |
7268 KB |
Output is correct |
40 |
Correct |
64 ms |
7400 KB |
Output is correct |
41 |
Correct |
60 ms |
7392 KB |
Output is correct |
42 |
Correct |
65 ms |
7268 KB |
Output is correct |
43 |
Correct |
60 ms |
7268 KB |
Output is correct |
44 |
Correct |
61 ms |
7268 KB |
Output is correct |
45 |
Correct |
57 ms |
7268 KB |
Output is correct |
46 |
Correct |
64 ms |
7268 KB |
Output is correct |
47 |
Correct |
59 ms |
7268 KB |
Output is correct |
48 |
Correct |
68 ms |
7388 KB |
Output is correct |
49 |
Correct |
79 ms |
7268 KB |
Output is correct |
50 |
Correct |
60 ms |
7268 KB |
Output is correct |
51 |
Correct |
618 ms |
35900 KB |
Output is correct |
52 |
Correct |
584 ms |
36352 KB |
Output is correct |
53 |
Correct |
711 ms |
35556 KB |
Output is correct |
54 |
Correct |
67 ms |
7268 KB |
Output is correct |
55 |
Correct |
54 ms |
7268 KB |
Output is correct |
56 |
Correct |
177 ms |
26832 KB |
Output is correct |
57 |
Correct |
1 ms |
364 KB |
Output is correct |
58 |
Correct |
65 ms |
7268 KB |
Output is correct |
59 |
Correct |
65 ms |
7268 KB |
Output is correct |
60 |
Correct |
738 ms |
35408 KB |
Output is correct |
61 |
Correct |
81 ms |
7268 KB |
Output is correct |
62 |
Correct |
65 ms |
7268 KB |
Output is correct |
63 |
Correct |
64 ms |
7268 KB |
Output is correct |
64 |
Correct |
68 ms |
7392 KB |
Output is correct |
65 |
Correct |
64 ms |
7268 KB |
Output is correct |
66 |
Correct |
68 ms |
7392 KB |
Output is correct |
67 |
Correct |
64 ms |
7268 KB |
Output is correct |
68 |
Correct |
59 ms |
7432 KB |
Output is correct |
69 |
Correct |
69 ms |
7268 KB |
Output is correct |
70 |
Correct |
715 ms |
39484 KB |
Output is correct |
71 |
Correct |
70 ms |
7412 KB |
Output is correct |
72 |
Correct |
578 ms |
39520 KB |
Output is correct |
73 |
Correct |
626 ms |
39620 KB |
Output is correct |
74 |
Correct |
1 ms |
364 KB |
Output is correct |
75 |
Correct |
1 ms |
364 KB |
Output is correct |
76 |
Correct |
1 ms |
364 KB |
Output is correct |
77 |
Correct |
1 ms |
364 KB |
Output is correct |
78 |
Correct |
1 ms |
364 KB |
Output is correct |
79 |
Correct |
6 ms |
1392 KB |
Output is correct |
80 |
Correct |
781 ms |
39484 KB |
Output is correct |
81 |
Correct |
782 ms |
39484 KB |
Output is correct |
82 |
Correct |
686 ms |
39424 KB |
Output is correct |
83 |
Correct |
721 ms |
39692 KB |
Output is correct |
84 |
Correct |
701 ms |
39620 KB |
Output is correct |
85 |
Correct |
704 ms |
39628 KB |
Output is correct |
86 |
Correct |
173 ms |
26704 KB |
Output is correct |
87 |
Correct |
1 ms |
364 KB |
Output is correct |