#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
#define int long long
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define ppb pop_back
#define eb emplace_back
#define g0(a) get<0>(a)
#define g1(a) get<1>(a)
#define g2(a) get<2>(a)
#define g3(a) get<3>(a)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef double db;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tree<ii, null_type, less<ii>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
int N, A, B, P, f = -1, st, ans;
vector<ii> seg;
main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> N >> A >> B;
P = A / __gcd(A, B + 1) * B;
assert(P <= 1e18);
for (int i = 1, l, r; i <= N; i++) {
cin >> l >> r;
if (r - l + 1 >= 2 * P) return cout << P << '\n', 0;
if (l + P - (l % P) > r) seg.eb(l % P, r % P);
else seg.eb(l % P, P - 1), seg.eb(0, r % P);
}
sort(seg.begin(), seg.end());
for (auto i : seg) {
if (i.first > f) {
if (f != -1) ans += f - st + 1;
st = i.first;
}
f = max(f, i.second);
}
ans += f - st + 1;
cout << ans << '\n';
}
Compilation message
strange_device.cpp:31:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
31 | main() {
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
7 ms |
592 KB |
Output is correct |
3 |
Correct |
6 ms |
592 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
5 ms |
592 KB |
Output is correct |
17 |
Correct |
52 ms |
2396 KB |
Output is correct |
18 |
Incorrect |
1 ms |
256 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
370 ms |
16792 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
508 ms |
16864 KB |
Output is correct |
3 |
Correct |
493 ms |
16864 KB |
Output is correct |
4 |
Correct |
466 ms |
16812 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
508 ms |
16864 KB |
Output is correct |
3 |
Correct |
493 ms |
16864 KB |
Output is correct |
4 |
Correct |
466 ms |
16812 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
485 ms |
16772 KB |
Output is correct |
7 |
Correct |
483 ms |
16792 KB |
Output is correct |
8 |
Correct |
486 ms |
16820 KB |
Output is correct |
9 |
Correct |
507 ms |
16808 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
508 ms |
16864 KB |
Output is correct |
3 |
Correct |
493 ms |
16864 KB |
Output is correct |
4 |
Correct |
466 ms |
16812 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
46 ms |
2448 KB |
Output is correct |
7 |
Correct |
54 ms |
2468 KB |
Output is correct |
8 |
Correct |
48 ms |
2492 KB |
Output is correct |
9 |
Correct |
53 ms |
2456 KB |
Output is correct |
10 |
Correct |
47 ms |
2380 KB |
Output is correct |
11 |
Correct |
48 ms |
2432 KB |
Output is correct |
12 |
Correct |
48 ms |
2412 KB |
Output is correct |
13 |
Correct |
49 ms |
2440 KB |
Output is correct |
14 |
Correct |
45 ms |
2472 KB |
Output is correct |
15 |
Correct |
56 ms |
2504 KB |
Output is correct |
16 |
Correct |
62 ms |
2484 KB |
Output is correct |
17 |
Correct |
49 ms |
2492 KB |
Output is correct |
18 |
Correct |
471 ms |
16856 KB |
Output is correct |
19 |
Correct |
475 ms |
16816 KB |
Output is correct |
20 |
Correct |
540 ms |
16812 KB |
Output is correct |
21 |
Correct |
49 ms |
2480 KB |
Output is correct |
22 |
Correct |
50 ms |
2492 KB |
Output is correct |
23 |
Correct |
150 ms |
8580 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
55 ms |
2416 KB |
Output is correct |
3 |
Correct |
49 ms |
2496 KB |
Output is correct |
4 |
Correct |
552 ms |
16880 KB |
Output is correct |
5 |
Correct |
61 ms |
2496 KB |
Output is correct |
6 |
Correct |
51 ms |
2504 KB |
Output is correct |
7 |
Correct |
49 ms |
2472 KB |
Output is correct |
8 |
Correct |
49 ms |
2456 KB |
Output is correct |
9 |
Correct |
48 ms |
2496 KB |
Output is correct |
10 |
Correct |
51 ms |
2504 KB |
Output is correct |
11 |
Correct |
50 ms |
2412 KB |
Output is correct |
12 |
Correct |
44 ms |
2456 KB |
Output is correct |
13 |
Correct |
49 ms |
2484 KB |
Output is correct |
14 |
Correct |
521 ms |
16892 KB |
Output is correct |
15 |
Correct |
51 ms |
2440 KB |
Output is correct |
16 |
Correct |
492 ms |
16868 KB |
Output is correct |
17 |
Correct |
470 ms |
16804 KB |
Output is correct |
18 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
7 ms |
592 KB |
Output is correct |
3 |
Correct |
6 ms |
592 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
5 ms |
592 KB |
Output is correct |
17 |
Correct |
52 ms |
2396 KB |
Output is correct |
18 |
Incorrect |
1 ms |
256 KB |
Output isn't correct |