#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;
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;
l %= tlimit; r %= tlimit;
if(l > r) {
t[idx++] = {l, tlimit-1};
t[idx++] = {0, r};
} else {
t[idx++] = {l, r};
}
}
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;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
9 ms |
640 KB |
Output is correct |
3 |
Correct |
10 ms |
640 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 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 |
4 ms |
384 KB |
Output is correct |
15 |
Correct |
4 ms |
384 KB |
Output is correct |
16 |
Correct |
10 ms |
640 KB |
Output is correct |
17 |
Correct |
60 ms |
3576 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Incorrect |
5 ms |
388 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
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 |
369 ms |
41276 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
490 ms |
32428 KB |
Output is correct |
3 |
Correct |
515 ms |
69812 KB |
Output is correct |
4 |
Correct |
485 ms |
69676 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
490 ms |
32428 KB |
Output is correct |
3 |
Correct |
515 ms |
69812 KB |
Output is correct |
4 |
Correct |
485 ms |
69676 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
487 ms |
69548 KB |
Output is correct |
7 |
Correct |
524 ms |
69804 KB |
Output is correct |
8 |
Correct |
519 ms |
69548 KB |
Output is correct |
9 |
Correct |
543 ms |
69548 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
490 ms |
32428 KB |
Output is correct |
3 |
Correct |
515 ms |
69812 KB |
Output is correct |
4 |
Correct |
485 ms |
69676 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
53 ms |
7288 KB |
Output is correct |
7 |
Correct |
56 ms |
7288 KB |
Output is correct |
8 |
Correct |
56 ms |
7288 KB |
Output is correct |
9 |
Correct |
66 ms |
7288 KB |
Output is correct |
10 |
Correct |
53 ms |
7288 KB |
Output is correct |
11 |
Correct |
56 ms |
7288 KB |
Output is correct |
12 |
Correct |
55 ms |
7288 KB |
Output is correct |
13 |
Correct |
61 ms |
7548 KB |
Output is correct |
14 |
Correct |
52 ms |
7216 KB |
Output is correct |
15 |
Correct |
58 ms |
7288 KB |
Output is correct |
16 |
Correct |
56 ms |
7288 KB |
Output is correct |
17 |
Correct |
56 ms |
7288 KB |
Output is correct |
18 |
Correct |
512 ms |
69548 KB |
Output is correct |
19 |
Correct |
505 ms |
69548 KB |
Output is correct |
20 |
Correct |
552 ms |
69680 KB |
Output is correct |
21 |
Correct |
58 ms |
7288 KB |
Output is correct |
22 |
Correct |
51 ms |
7292 KB |
Output is correct |
23 |
Correct |
162 ms |
18296 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
58 ms |
7288 KB |
Output is correct |
3 |
Correct |
58 ms |
7288 KB |
Output is correct |
4 |
Correct |
594 ms |
69548 KB |
Output is correct |
5 |
Correct |
56 ms |
7288 KB |
Output is correct |
6 |
Correct |
57 ms |
7288 KB |
Output is correct |
7 |
Correct |
62 ms |
7484 KB |
Output is correct |
8 |
Correct |
58 ms |
7288 KB |
Output is correct |
9 |
Correct |
60 ms |
7288 KB |
Output is correct |
10 |
Correct |
57 ms |
7288 KB |
Output is correct |
11 |
Correct |
60 ms |
7288 KB |
Output is correct |
12 |
Correct |
54 ms |
7288 KB |
Output is correct |
13 |
Correct |
60 ms |
7288 KB |
Output is correct |
14 |
Correct |
568 ms |
69552 KB |
Output is correct |
15 |
Correct |
58 ms |
7032 KB |
Output is correct |
16 |
Correct |
538 ms |
69676 KB |
Output is correct |
17 |
Correct |
548 ms |
69612 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
9 ms |
640 KB |
Output is correct |
3 |
Correct |
10 ms |
640 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 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 |
4 ms |
384 KB |
Output is correct |
15 |
Correct |
4 ms |
384 KB |
Output is correct |
16 |
Correct |
10 ms |
640 KB |
Output is correct |
17 |
Correct |
60 ms |
3576 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
4 ms |
384 KB |
Output is correct |
20 |
Incorrect |
5 ms |
388 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |