#include <bits/stdc++.h>
using namespace std;
#define OPTM ios_base::sync_with_stdio(0); cin.tie(0);
#define INF int(1e9+7)
#define ln '\n'
#define ll long long
#define ull unsigned long long
#define ui unsigned int
#define us unsigned short
#define FOR(i,s,n) for (int i = s; i < n; i++)
#define FORR(i,n,s) for (int i = n; i > s; i--)
#define FORX(u, arr) for (auto u : arr)
#define PB push_back
#define in(v,x) (v.find(x) != v.end())
#define F first
#define S second
#define PII pair<int, int>
#define PLL pair<ll, ll>
#define UM unordered_map
#define US unordered_set
#define PQ priority_queue
#define ALL(v) v.begin(), v.end()
const ll LLINF = 2e18;
ll n,a,b;
vector<PLL> v;
__int128_t gcd(__int128_t a, __int128_t b) {
return (b == 0) ? a : gcd(b,a%b);
}
int main() {
OPTM;
cin >> n >> a >> b;
__int128_t p = __int128_t(a)*__int128_t(b)/gcd(__int128_t(a),__int128_t(b)+1);
FOR(i,0,n) {
ll l,r; cin >> l >> r;
ll c = l%p, d = r%p;
if (r-l+1 >= p) v.PB({0,p-1});
else if (d >= c) v.PB({c,d});
else {
v.PB({c,p-1});
v.PB({0ll,d});
}
}
ll res = 0;
sort(ALL(v));
ll vn = v.size();
ll s = v[0].F, e = v[0].S;
FOR(i,1,vn) {
if (v[i].F <= e) e = max(e,v[i].S);
else {
res += e-s+1;
s = v[i].F;
e = v[i].S;
}
}
res += e-s+1;
cout << res;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
600 KB |
Output is correct |
3 |
Correct |
5 ms |
600 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
220 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
4 ms |
600 KB |
Output is correct |
17 |
Correct |
44 ms |
2444 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 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 |
289 ms |
16900 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
391 ms |
16788 KB |
Output is correct |
3 |
Correct |
375 ms |
16816 KB |
Output is correct |
4 |
Correct |
383 ms |
16800 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
391 ms |
16788 KB |
Output is correct |
3 |
Correct |
375 ms |
16816 KB |
Output is correct |
4 |
Correct |
383 ms |
16800 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
408 ms |
16796 KB |
Output is correct |
7 |
Correct |
391 ms |
16824 KB |
Output is correct |
8 |
Correct |
407 ms |
16796 KB |
Output is correct |
9 |
Correct |
434 ms |
16820 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
391 ms |
16788 KB |
Output is correct |
3 |
Correct |
375 ms |
16816 KB |
Output is correct |
4 |
Correct |
383 ms |
16800 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
42 ms |
2480 KB |
Output is correct |
7 |
Correct |
41 ms |
2508 KB |
Output is correct |
8 |
Correct |
38 ms |
2512 KB |
Output is correct |
9 |
Correct |
39 ms |
2512 KB |
Output is correct |
10 |
Correct |
41 ms |
2484 KB |
Output is correct |
11 |
Correct |
45 ms |
2456 KB |
Output is correct |
12 |
Correct |
38 ms |
2512 KB |
Output is correct |
13 |
Correct |
41 ms |
2404 KB |
Output is correct |
14 |
Correct |
37 ms |
2504 KB |
Output is correct |
15 |
Correct |
43 ms |
2464 KB |
Output is correct |
16 |
Correct |
45 ms |
2512 KB |
Output is correct |
17 |
Correct |
42 ms |
2464 KB |
Output is correct |
18 |
Correct |
414 ms |
16800 KB |
Output is correct |
19 |
Correct |
416 ms |
16780 KB |
Output is correct |
20 |
Correct |
459 ms |
16824 KB |
Output is correct |
21 |
Correct |
45 ms |
2412 KB |
Output is correct |
22 |
Correct |
39 ms |
2512 KB |
Output is correct |
23 |
Correct |
120 ms |
8720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
44 ms |
2396 KB |
Output is correct |
3 |
Correct |
43 ms |
2484 KB |
Output is correct |
4 |
Correct |
455 ms |
16920 KB |
Output is correct |
5 |
Correct |
40 ms |
2524 KB |
Output is correct |
6 |
Correct |
43 ms |
2392 KB |
Output is correct |
7 |
Correct |
44 ms |
2416 KB |
Output is correct |
8 |
Correct |
44 ms |
2420 KB |
Output is correct |
9 |
Correct |
41 ms |
2496 KB |
Output is correct |
10 |
Correct |
40 ms |
2428 KB |
Output is correct |
11 |
Correct |
43 ms |
2512 KB |
Output is correct |
12 |
Correct |
38 ms |
2428 KB |
Output is correct |
13 |
Correct |
43 ms |
2400 KB |
Output is correct |
14 |
Correct |
423 ms |
16956 KB |
Output is correct |
15 |
Correct |
44 ms |
2512 KB |
Output is correct |
16 |
Correct |
412 ms |
16760 KB |
Output is correct |
17 |
Correct |
368 ms |
16792 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
600 KB |
Output is correct |
3 |
Correct |
5 ms |
600 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
220 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
4 ms |
600 KB |
Output is correct |
17 |
Correct |
44 ms |
2444 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
289 ms |
16900 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
391 ms |
16788 KB |
Output is correct |
31 |
Correct |
375 ms |
16816 KB |
Output is correct |
32 |
Correct |
383 ms |
16800 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
408 ms |
16796 KB |
Output is correct |
35 |
Correct |
391 ms |
16824 KB |
Output is correct |
36 |
Correct |
407 ms |
16796 KB |
Output is correct |
37 |
Correct |
434 ms |
16820 KB |
Output is correct |
38 |
Correct |
0 ms |
212 KB |
Output is correct |
39 |
Correct |
42 ms |
2480 KB |
Output is correct |
40 |
Correct |
41 ms |
2508 KB |
Output is correct |
41 |
Correct |
38 ms |
2512 KB |
Output is correct |
42 |
Correct |
39 ms |
2512 KB |
Output is correct |
43 |
Correct |
41 ms |
2484 KB |
Output is correct |
44 |
Correct |
45 ms |
2456 KB |
Output is correct |
45 |
Correct |
38 ms |
2512 KB |
Output is correct |
46 |
Correct |
41 ms |
2404 KB |
Output is correct |
47 |
Correct |
37 ms |
2504 KB |
Output is correct |
48 |
Correct |
43 ms |
2464 KB |
Output is correct |
49 |
Correct |
45 ms |
2512 KB |
Output is correct |
50 |
Correct |
42 ms |
2464 KB |
Output is correct |
51 |
Correct |
414 ms |
16800 KB |
Output is correct |
52 |
Correct |
416 ms |
16780 KB |
Output is correct |
53 |
Correct |
459 ms |
16824 KB |
Output is correct |
54 |
Correct |
45 ms |
2412 KB |
Output is correct |
55 |
Correct |
39 ms |
2512 KB |
Output is correct |
56 |
Correct |
120 ms |
8720 KB |
Output is correct |
57 |
Correct |
0 ms |
212 KB |
Output is correct |
58 |
Correct |
44 ms |
2396 KB |
Output is correct |
59 |
Correct |
43 ms |
2484 KB |
Output is correct |
60 |
Correct |
455 ms |
16920 KB |
Output is correct |
61 |
Correct |
40 ms |
2524 KB |
Output is correct |
62 |
Correct |
43 ms |
2392 KB |
Output is correct |
63 |
Correct |
44 ms |
2416 KB |
Output is correct |
64 |
Correct |
44 ms |
2420 KB |
Output is correct |
65 |
Correct |
41 ms |
2496 KB |
Output is correct |
66 |
Correct |
40 ms |
2428 KB |
Output is correct |
67 |
Correct |
43 ms |
2512 KB |
Output is correct |
68 |
Correct |
38 ms |
2428 KB |
Output is correct |
69 |
Correct |
43 ms |
2400 KB |
Output is correct |
70 |
Correct |
423 ms |
16956 KB |
Output is correct |
71 |
Correct |
44 ms |
2512 KB |
Output is correct |
72 |
Correct |
412 ms |
16760 KB |
Output is correct |
73 |
Correct |
368 ms |
16792 KB |
Output is correct |
74 |
Correct |
0 ms |
212 KB |
Output is correct |
75 |
Correct |
1 ms |
212 KB |
Output is correct |
76 |
Correct |
1 ms |
320 KB |
Output is correct |
77 |
Correct |
0 ms |
212 KB |
Output is correct |
78 |
Correct |
1 ms |
212 KB |
Output is correct |
79 |
Correct |
5 ms |
992 KB |
Output is correct |
80 |
Correct |
469 ms |
34996 KB |
Output is correct |
81 |
Correct |
506 ms |
35208 KB |
Output is correct |
82 |
Correct |
464 ms |
35192 KB |
Output is correct |
83 |
Correct |
445 ms |
35008 KB |
Output is correct |
84 |
Correct |
470 ms |
35040 KB |
Output is correct |
85 |
Correct |
492 ms |
35068 KB |
Output is correct |
86 |
Correct |
144 ms |
18432 KB |
Output is correct |
87 |
Correct |
1 ms |
316 KB |
Output is correct |