#include <bits/stdc++.h>
#define PB push_back
#define ST first
#define ND second
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
using namespace std;
using ll = long long;
using pi = pair<int, int>;
using vi = vector<int>;
int n;
ll a, b;
vector<pair<ll,int>>p;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> a >> b;
ll g = __gcd(a, b + 1);
a /= g;
ll mod = a * b;
for(int i = 1; i <= n; ++i) {
ll l, r;
cin >> l >> r;
if(r - l + 1 >= mod) {
p.PB({0,1});
p.PB({mod,-1});
} else {
if(l % (mod) <= r % (mod)) {
p.PB({l % (mod), 1});
p.PB({(r % (mod)) + 1, -1});
} else {
p.PB({(l % (mod)), 1});
p.PB({mod, -1});
p.PB({0, 1});
p.PB({r % (mod) + 1, -1});
}
}
}
sort(p.begin(), p.end());
ll ans = 0;
int cnt = 0;
ll pr = 0;
for(auto it : p) {
if(cnt > 0) ans += it.ST - pr;
cnt += it.ND;
pr = it.ST;
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
6 ms |
1540 KB |
Output is correct |
3 |
Correct |
7 ms |
1392 KB |
Output is correct |
4 |
Correct |
1 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 |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
376 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 |
6 ms |
1392 KB |
Output is correct |
17 |
Correct |
67 ms |
7268 KB |
Output is correct |
18 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 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 |
Incorrect |
1 ms |
384 KB |
Output isn't 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 |
431 ms |
56936 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
598 ms |
49868 KB |
Output is correct |
3 |
Correct |
628 ms |
49852 KB |
Output is correct |
4 |
Correct |
575 ms |
49852 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
598 ms |
49868 KB |
Output is correct |
3 |
Correct |
628 ms |
49852 KB |
Output is correct |
4 |
Correct |
575 ms |
49852 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
599 ms |
49852 KB |
Output is correct |
7 |
Correct |
605 ms |
49852 KB |
Output is correct |
8 |
Correct |
584 ms |
48792 KB |
Output is correct |
9 |
Correct |
692 ms |
49560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
598 ms |
49868 KB |
Output is correct |
3 |
Correct |
628 ms |
49852 KB |
Output is correct |
4 |
Correct |
575 ms |
49852 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
75 ms |
7268 KB |
Output is correct |
7 |
Correct |
61 ms |
7396 KB |
Output is correct |
8 |
Correct |
60 ms |
7268 KB |
Output is correct |
9 |
Correct |
58 ms |
7268 KB |
Output is correct |
10 |
Correct |
57 ms |
7268 KB |
Output is correct |
11 |
Correct |
60 ms |
7268 KB |
Output is correct |
12 |
Correct |
68 ms |
7392 KB |
Output is correct |
13 |
Correct |
63 ms |
7268 KB |
Output is correct |
14 |
Correct |
58 ms |
7268 KB |
Output is correct |
15 |
Correct |
67 ms |
7268 KB |
Output is correct |
16 |
Correct |
68 ms |
7268 KB |
Output is correct |
17 |
Correct |
68 ms |
7268 KB |
Output is correct |
18 |
Correct |
614 ms |
50268 KB |
Output is correct |
19 |
Correct |
579 ms |
49304 KB |
Output is correct |
20 |
Correct |
724 ms |
49968 KB |
Output is correct |
21 |
Correct |
66 ms |
7288 KB |
Output is correct |
22 |
Correct |
55 ms |
7396 KB |
Output is correct |
23 |
Correct |
171 ms |
26880 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
63 ms |
7268 KB |
Output is correct |
3 |
Correct |
64 ms |
7268 KB |
Output is correct |
4 |
Correct |
762 ms |
49988 KB |
Output is correct |
5 |
Correct |
63 ms |
7268 KB |
Output is correct |
6 |
Correct |
64 ms |
7268 KB |
Output is correct |
7 |
Correct |
63 ms |
7268 KB |
Output is correct |
8 |
Correct |
66 ms |
7268 KB |
Output is correct |
9 |
Correct |
63 ms |
7264 KB |
Output is correct |
10 |
Correct |
68 ms |
7416 KB |
Output is correct |
11 |
Correct |
63 ms |
7268 KB |
Output is correct |
12 |
Correct |
58 ms |
7388 KB |
Output is correct |
13 |
Correct |
69 ms |
7460 KB |
Output is correct |
14 |
Correct |
712 ms |
42676 KB |
Output is correct |
15 |
Correct |
69 ms |
7392 KB |
Output is correct |
16 |
Correct |
570 ms |
42576 KB |
Output is correct |
17 |
Correct |
591 ms |
42540 KB |
Output is correct |
18 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
512 KB |
Output is correct |
2 |
Correct |
6 ms |
1540 KB |
Output is correct |
3 |
Correct |
7 ms |
1392 KB |
Output is correct |
4 |
Correct |
1 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 |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
384 KB |
Output is correct |
10 |
Correct |
1 ms |
376 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 |
6 ms |
1392 KB |
Output is correct |
17 |
Correct |
67 ms |
7268 KB |
Output is correct |
18 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |