#include <bits/stdc++.h>
using namespace std;
using lint = long long;
const lint INF = 1e18 + 1;
int main() {
ios::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
int n;
lint A, B;
cin >> n >> A >> B;
lint g = __gcd(A, B + 1);
lint t = 0;
if (A / g >= INF / B) {
t = INF + 1;
} else {
t = (A / g) * B;
}
deque<pair<lint, lint>> interval;
for (int i = 0; i < n; i++) {
lint l, r;
cin >> l >> r;
l %= t;
r %= t;
if (l <= r) {
interval.emplace_back(l, r);
} else {
interval.emplace_back(l, t - 1);
interval.emplace_back(0, r);
}
}
sort(begin(interval), end(interval));
lint ans = 0;
for (int i = 0; i < (int)interval.size(); i++) {
lint l = interval[i].first;
lint r = interval[i].second;
int nxt = i;
while (nxt + 1 < (int)interval.size() && interval[nxt + 1].first <= r) {
r = max(r, interval[nxt + 1].second);
nxt++;
}
ans += (r - l + 1);
i = nxt;
}
cout << ans << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
8 ms |
888 KB |
Output is correct |
3 |
Correct |
9 ms |
888 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
380 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
8 ms |
888 KB |
Output is correct |
17 |
Correct |
76 ms |
5752 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Incorrect |
2 ms |
380 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
376 KB |
Output is correct |
3 |
Correct |
3 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
376 KB |
Output is correct |
5 |
Correct |
453 ms |
41636 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
656 ms |
28080 KB |
Output is correct |
3 |
Correct |
658 ms |
33600 KB |
Output is correct |
4 |
Correct |
648 ms |
34344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
656 ms |
28080 KB |
Output is correct |
3 |
Correct |
658 ms |
33600 KB |
Output is correct |
4 |
Correct |
648 ms |
34344 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
667 ms |
44832 KB |
Output is correct |
7 |
Correct |
659 ms |
51116 KB |
Output is correct |
8 |
Correct |
660 ms |
51264 KB |
Output is correct |
9 |
Correct |
779 ms |
46456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
656 ms |
28080 KB |
Output is correct |
3 |
Correct |
658 ms |
33600 KB |
Output is correct |
4 |
Correct |
648 ms |
34344 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
62 ms |
5712 KB |
Output is correct |
7 |
Correct |
71 ms |
5752 KB |
Output is correct |
8 |
Correct |
66 ms |
5884 KB |
Output is correct |
9 |
Correct |
69 ms |
5628 KB |
Output is correct |
10 |
Correct |
64 ms |
5744 KB |
Output is correct |
11 |
Correct |
73 ms |
5624 KB |
Output is correct |
12 |
Correct |
65 ms |
5752 KB |
Output is correct |
13 |
Correct |
75 ms |
5716 KB |
Output is correct |
14 |
Correct |
62 ms |
5624 KB |
Output is correct |
15 |
Correct |
76 ms |
5704 KB |
Output is correct |
16 |
Correct |
74 ms |
5728 KB |
Output is correct |
17 |
Correct |
68 ms |
5676 KB |
Output is correct |
18 |
Correct |
786 ms |
46664 KB |
Output is correct |
19 |
Correct |
655 ms |
46248 KB |
Output is correct |
20 |
Correct |
770 ms |
46500 KB |
Output is correct |
21 |
Correct |
76 ms |
5768 KB |
Output is correct |
22 |
Correct |
62 ms |
5652 KB |
Output is correct |
23 |
Correct |
196 ms |
18660 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
76 ms |
2680 KB |
Output is correct |
3 |
Correct |
80 ms |
5624 KB |
Output is correct |
4 |
Correct |
799 ms |
52652 KB |
Output is correct |
5 |
Correct |
73 ms |
5624 KB |
Output is correct |
6 |
Correct |
73 ms |
5628 KB |
Output is correct |
7 |
Correct |
73 ms |
5752 KB |
Output is correct |
8 |
Correct |
75 ms |
5644 KB |
Output is correct |
9 |
Correct |
72 ms |
5684 KB |
Output is correct |
10 |
Correct |
73 ms |
5752 KB |
Output is correct |
11 |
Correct |
82 ms |
5688 KB |
Output is correct |
12 |
Correct |
66 ms |
5752 KB |
Output is correct |
13 |
Correct |
164 ms |
5752 KB |
Output is correct |
14 |
Correct |
757 ms |
47128 KB |
Output is correct |
15 |
Correct |
71 ms |
5752 KB |
Output is correct |
16 |
Correct |
657 ms |
47356 KB |
Output is correct |
17 |
Correct |
667 ms |
52172 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
8 ms |
888 KB |
Output is correct |
3 |
Correct |
9 ms |
888 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
380 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
8 ms |
888 KB |
Output is correct |
17 |
Correct |
76 ms |
5752 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Incorrect |
2 ms |
380 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |