// Success consists of going from failure to failure without loss of enthusiasm
#include <bits/stdc++.h>
using namespace std;
#define nl '\n'
#define pb push_back
#define sz(x) int(x.size())
using ll = long long;
template<class T> using V = vector<T>;
using vl = V<ll>;
int main() {
cin.tie(0)->sync_with_stdio(0);
int N; ll A, B; cin >> N >> A >> B;
ll K = A / __gcd(B + 1, A);
if (K > ll(1e18) / B) K = -1;
else K *= B;
V<array<ll, 2>> E;
auto add = [&](ll l, ll r) {
E.pb(array<ll, 2>{l, +1});
E.pb(array<ll, 2>{r + 1, -1});
};
ll ans = 0;
for(int i = 0; i < N; i++) {
ll l, r; cin >> l >> r;
ll len = r - l + 1;
if (K == -1) ans += len;
if (len >= K) add(0, K - 1);
else {
l %= K, r %= K;
if (l <= r) add(l, r);
else add(l, K - 1), add(0, r);
}
}
if (K == -1) {
cout << ans << nl;
exit(0-0);
}
int have = 0;
sort(begin(E), end(E));
for(int i = 0; i < sz(E); i++) {
int j = i; while(j < sz(E) && E[j][0] == E[i][0]) {
have += E[j][1]; j++;
}
if (have && j < sz(E)) {
ll amt = E[j][0] - E[i][0];
// cout << E[j][0] << " " << E[i][0] << endl;
ans += amt;
}
i = j - 1;
}
cout << ans << nl;
exit(0-0);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
5 ms |
1248 KB |
Output is correct |
3 |
Correct |
7 ms |
1248 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
600 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
5 ms |
1248 KB |
Output is correct |
17 |
Correct |
52 ms |
7924 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
464 KB |
Output is correct |
3 |
Correct |
1 ms |
532 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
363 ms |
56300 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
492 ms |
67304 KB |
Output is correct |
3 |
Correct |
508 ms |
67440 KB |
Output is correct |
4 |
Correct |
464 ms |
67316 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
492 ms |
67304 KB |
Output is correct |
3 |
Correct |
508 ms |
67440 KB |
Output is correct |
4 |
Correct |
464 ms |
67316 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
499 ms |
67476 KB |
Output is correct |
7 |
Correct |
518 ms |
67700 KB |
Output is correct |
8 |
Correct |
466 ms |
67212 KB |
Output is correct |
9 |
Correct |
571 ms |
67168 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
492 ms |
67304 KB |
Output is correct |
3 |
Correct |
508 ms |
67440 KB |
Output is correct |
4 |
Correct |
464 ms |
67316 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
41 ms |
8324 KB |
Output is correct |
7 |
Correct |
45 ms |
8816 KB |
Output is correct |
8 |
Correct |
45 ms |
7304 KB |
Output is correct |
9 |
Correct |
43 ms |
7932 KB |
Output is correct |
10 |
Correct |
40 ms |
9032 KB |
Output is correct |
11 |
Correct |
45 ms |
8916 KB |
Output is correct |
12 |
Correct |
61 ms |
7624 KB |
Output is correct |
13 |
Correct |
49 ms |
9160 KB |
Output is correct |
14 |
Correct |
42 ms |
9160 KB |
Output is correct |
15 |
Correct |
52 ms |
7628 KB |
Output is correct |
16 |
Correct |
53 ms |
7628 KB |
Output is correct |
17 |
Correct |
43 ms |
7480 KB |
Output is correct |
18 |
Correct |
488 ms |
67476 KB |
Output is correct |
19 |
Correct |
442 ms |
67480 KB |
Output is correct |
20 |
Correct |
577 ms |
67512 KB |
Output is correct |
21 |
Correct |
55 ms |
8192 KB |
Output is correct |
22 |
Correct |
38 ms |
7636 KB |
Output is correct |
23 |
Correct |
126 ms |
28416 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
53 ms |
8404 KB |
Output is correct |
3 |
Correct |
49 ms |
7736 KB |
Output is correct |
4 |
Correct |
587 ms |
68248 KB |
Output is correct |
5 |
Correct |
49 ms |
9160 KB |
Output is correct |
6 |
Correct |
50 ms |
9016 KB |
Output is correct |
7 |
Correct |
50 ms |
7780 KB |
Output is correct |
8 |
Correct |
55 ms |
8740 KB |
Output is correct |
9 |
Correct |
48 ms |
9160 KB |
Output is correct |
10 |
Correct |
65 ms |
8992 KB |
Output is correct |
11 |
Correct |
49 ms |
8652 KB |
Output is correct |
12 |
Correct |
43 ms |
7636 KB |
Output is correct |
13 |
Correct |
52 ms |
8136 KB |
Output is correct |
14 |
Correct |
572 ms |
68700 KB |
Output is correct |
15 |
Correct |
54 ms |
8288 KB |
Output is correct |
16 |
Correct |
433 ms |
67484 KB |
Output is correct |
17 |
Correct |
466 ms |
67776 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
5 ms |
1248 KB |
Output is correct |
3 |
Correct |
7 ms |
1248 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
600 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
344 KB |
Output is correct |
16 |
Correct |
5 ms |
1248 KB |
Output is correct |
17 |
Correct |
52 ms |
7924 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
456 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
1 ms |
464 KB |
Output is correct |
26 |
Correct |
1 ms |
532 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
363 ms |
56300 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
492 ms |
67304 KB |
Output is correct |
31 |
Correct |
508 ms |
67440 KB |
Output is correct |
32 |
Correct |
464 ms |
67316 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
499 ms |
67476 KB |
Output is correct |
35 |
Correct |
518 ms |
67700 KB |
Output is correct |
36 |
Correct |
466 ms |
67212 KB |
Output is correct |
37 |
Correct |
571 ms |
67168 KB |
Output is correct |
38 |
Correct |
1 ms |
344 KB |
Output is correct |
39 |
Correct |
41 ms |
8324 KB |
Output is correct |
40 |
Correct |
45 ms |
8816 KB |
Output is correct |
41 |
Correct |
45 ms |
7304 KB |
Output is correct |
42 |
Correct |
43 ms |
7932 KB |
Output is correct |
43 |
Correct |
40 ms |
9032 KB |
Output is correct |
44 |
Correct |
45 ms |
8916 KB |
Output is correct |
45 |
Correct |
61 ms |
7624 KB |
Output is correct |
46 |
Correct |
49 ms |
9160 KB |
Output is correct |
47 |
Correct |
42 ms |
9160 KB |
Output is correct |
48 |
Correct |
52 ms |
7628 KB |
Output is correct |
49 |
Correct |
53 ms |
7628 KB |
Output is correct |
50 |
Correct |
43 ms |
7480 KB |
Output is correct |
51 |
Correct |
488 ms |
67476 KB |
Output is correct |
52 |
Correct |
442 ms |
67480 KB |
Output is correct |
53 |
Correct |
577 ms |
67512 KB |
Output is correct |
54 |
Correct |
55 ms |
8192 KB |
Output is correct |
55 |
Correct |
38 ms |
7636 KB |
Output is correct |
56 |
Correct |
126 ms |
28416 KB |
Output is correct |
57 |
Correct |
0 ms |
344 KB |
Output is correct |
58 |
Correct |
53 ms |
8404 KB |
Output is correct |
59 |
Correct |
49 ms |
7736 KB |
Output is correct |
60 |
Correct |
587 ms |
68248 KB |
Output is correct |
61 |
Correct |
49 ms |
9160 KB |
Output is correct |
62 |
Correct |
50 ms |
9016 KB |
Output is correct |
63 |
Correct |
50 ms |
7780 KB |
Output is correct |
64 |
Correct |
55 ms |
8740 KB |
Output is correct |
65 |
Correct |
48 ms |
9160 KB |
Output is correct |
66 |
Correct |
65 ms |
8992 KB |
Output is correct |
67 |
Correct |
49 ms |
8652 KB |
Output is correct |
68 |
Correct |
43 ms |
7636 KB |
Output is correct |
69 |
Correct |
52 ms |
8136 KB |
Output is correct |
70 |
Correct |
572 ms |
68700 KB |
Output is correct |
71 |
Correct |
54 ms |
8288 KB |
Output is correct |
72 |
Correct |
433 ms |
67484 KB |
Output is correct |
73 |
Correct |
466 ms |
67776 KB |
Output is correct |
74 |
Correct |
1 ms |
348 KB |
Output is correct |
75 |
Correct |
0 ms |
348 KB |
Output is correct |
76 |
Correct |
1 ms |
344 KB |
Output is correct |
77 |
Correct |
1 ms |
348 KB |
Output is correct |
78 |
Correct |
0 ms |
348 KB |
Output is correct |
79 |
Correct |
4 ms |
1248 KB |
Output is correct |
80 |
Correct |
595 ms |
68552 KB |
Output is correct |
81 |
Correct |
610 ms |
68960 KB |
Output is correct |
82 |
Correct |
549 ms |
69000 KB |
Output is correct |
83 |
Correct |
530 ms |
68768 KB |
Output is correct |
84 |
Correct |
533 ms |
68852 KB |
Output is correct |
85 |
Correct |
561 ms |
69152 KB |
Output is correct |
86 |
Correct |
120 ms |
28492 KB |
Output is correct |
87 |
Correct |
1 ms |
344 KB |
Output is correct |