#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
int main() {
ios :: sync_with_stdio(0); cin.tie(0);
int n;
long long A, B;
vector <pair <long long, int> > events;
cin >> n >> A >> B;
long long T = A / __gcd(A, B + 1) * B;
for (int i = 0; i < n; ++i) {
long long L, R;
cin >> L >> R;
if (R - L + 1 >= T) {
cout << T << '\n';
exit(0);
}
L %= T, R %= T;
if (L <= R) {
events.push_back({L, 1});
events.push_back({R + 1, -1});
} else {
events.push_back({L, 1});
events.push_back({T, -1});
events.push_back({0, 1});
events.push_back({R + 1, -1});
}
}
sort(events.begin(), events.end());
int cur = 0;
long long ans = 0;
for (int i = 0; i + 1 < events.size(); ++i) {
cur += events[i].second;
if (cur != 0) ans += events[i + 1].first - events[i].first;
}
cout << ans;
}
Compilation message
strange_device.cpp: In function 'int main()':
strange_device.cpp:42:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
42 | for (int i = 0; i + 1 < events.size(); ++i) {
| ~~~~~~^~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
1232 KB |
Output is correct |
3 |
Correct |
6 ms |
1240 KB |
Output is correct |
4 |
Correct |
1 ms |
320 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
328 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
6 ms |
1292 KB |
Output is correct |
17 |
Correct |
62 ms |
7268 KB |
Output is correct |
18 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
320 KB |
Output is correct |
5 |
Incorrect |
1 ms |
316 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
344 ms |
34996 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
490 ms |
34708 KB |
Output is correct |
3 |
Correct |
497 ms |
33268 KB |
Output is correct |
4 |
Correct |
470 ms |
34016 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
490 ms |
34708 KB |
Output is correct |
3 |
Correct |
497 ms |
33268 KB |
Output is correct |
4 |
Correct |
470 ms |
34016 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
495 ms |
34072 KB |
Output is correct |
7 |
Correct |
489 ms |
33536 KB |
Output is correct |
8 |
Correct |
493 ms |
33804 KB |
Output is correct |
9 |
Correct |
567 ms |
33244 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
490 ms |
34708 KB |
Output is correct |
3 |
Correct |
497 ms |
33268 KB |
Output is correct |
4 |
Correct |
470 ms |
34016 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
48 ms |
6160 KB |
Output is correct |
7 |
Correct |
54 ms |
6084 KB |
Output is correct |
8 |
Correct |
51 ms |
6084 KB |
Output is correct |
9 |
Correct |
49 ms |
6084 KB |
Output is correct |
10 |
Correct |
49 ms |
6084 KB |
Output is correct |
11 |
Correct |
50 ms |
6004 KB |
Output is correct |
12 |
Correct |
50 ms |
7236 KB |
Output is correct |
13 |
Correct |
58 ms |
7224 KB |
Output is correct |
14 |
Correct |
48 ms |
7368 KB |
Output is correct |
15 |
Correct |
57 ms |
7292 KB |
Output is correct |
16 |
Correct |
55 ms |
7236 KB |
Output is correct |
17 |
Correct |
50 ms |
7256 KB |
Output is correct |
18 |
Correct |
504 ms |
33812 KB |
Output is correct |
19 |
Correct |
476 ms |
35224 KB |
Output is correct |
20 |
Correct |
599 ms |
35456 KB |
Output is correct |
21 |
Correct |
58 ms |
7300 KB |
Output is correct |
22 |
Correct |
46 ms |
7228 KB |
Output is correct |
23 |
Correct |
150 ms |
20820 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
53 ms |
6144 KB |
Output is correct |
3 |
Correct |
57 ms |
6320 KB |
Output is correct |
4 |
Correct |
614 ms |
33300 KB |
Output is correct |
5 |
Correct |
50 ms |
6212 KB |
Output is correct |
6 |
Correct |
54 ms |
6204 KB |
Output is correct |
7 |
Correct |
52 ms |
6128 KB |
Output is correct |
8 |
Correct |
55 ms |
6160 KB |
Output is correct |
9 |
Correct |
53 ms |
6148 KB |
Output is correct |
10 |
Correct |
55 ms |
6212 KB |
Output is correct |
11 |
Correct |
52 ms |
6208 KB |
Output is correct |
12 |
Correct |
49 ms |
6124 KB |
Output is correct |
13 |
Correct |
55 ms |
6192 KB |
Output is correct |
14 |
Correct |
567 ms |
34956 KB |
Output is correct |
15 |
Correct |
56 ms |
6208 KB |
Output is correct |
16 |
Correct |
465 ms |
34980 KB |
Output is correct |
17 |
Correct |
485 ms |
35012 KB |
Output is correct |
18 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
1232 KB |
Output is correct |
3 |
Correct |
6 ms |
1240 KB |
Output is correct |
4 |
Correct |
1 ms |
320 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
328 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
6 ms |
1292 KB |
Output is correct |
17 |
Correct |
62 ms |
7268 KB |
Output is correct |
18 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |