#include <bits/stdc++.h>
using namespace std;
bool will_overflow(long long a, long long b) {
long long c = a * b;
if (a != c / b) {
return true;
}
return false;
}
long long gcd(long long a, long long b) {
while (b) {
long long c = a % b;
a = b;
b = c;
}
return a;
}
int main() {
cin.tie(nullptr)->ios_base::sync_with_stdio(false);
long long n, a, b;
cin >> n >> a >> b;
long long p = 0;
if (log10((double)a / (double)gcd(b + 1, a)) + log10(b) >= 18) {
p = 1e18 + 1;
}
else {
p = a / gcd(a, b + 1) * b;
}
map<long long, long long> wh;
auto update = [&](long long st, long long dr) {
wh[st]++;
wh[dr + 1]--;
};
wh[p - 1] = 0;
wh[0] = 0;
for (long long i = 1; i <= n; ++i) {
long long st, dr;
cin >> st >> dr;
long long lg = (dr - st) + 1;
st %= p;
if (st + lg - 1 < p) {
update(st, st + lg - 1);
}
else {
update(st, p - 1);
lg -= (p - st);
st = 0;
if (st + lg - 1 < p) {
update(st, st + lg - 1);
}
else {
cout << p << '\n';
return 0;
}
}
}
long long ans = 0;
long long s = 0;
for (map<long long, long long>::iterator i = wh.begin(); i != prev(wh.end()); ++i) {
s += i->second;
long long st = i->first, dr = next(i)->first - 1;
if (s) {
ans += dr - st + 1;
}
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
6 ms |
1200 KB |
Output is correct |
3 |
Correct |
6 ms |
1208 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
308 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
6 ms |
1228 KB |
Output is correct |
17 |
Correct |
74 ms |
8404 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
308 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
2 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
236 ms |
1120 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
641 ms |
63652 KB |
Output is correct |
3 |
Correct |
694 ms |
63608 KB |
Output is correct |
4 |
Correct |
727 ms |
63716 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
641 ms |
63652 KB |
Output is correct |
3 |
Correct |
694 ms |
63608 KB |
Output is correct |
4 |
Correct |
727 ms |
63716 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
679 ms |
63612 KB |
Output is correct |
7 |
Correct |
692 ms |
63672 KB |
Output is correct |
8 |
Correct |
651 ms |
63616 KB |
Output is correct |
9 |
Correct |
731 ms |
63572 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
641 ms |
63652 KB |
Output is correct |
3 |
Correct |
694 ms |
63608 KB |
Output is correct |
4 |
Correct |
727 ms |
63716 KB |
Output is correct |
5 |
Correct |
0 ms |
308 KB |
Output is correct |
6 |
Correct |
61 ms |
8480 KB |
Output is correct |
7 |
Correct |
56 ms |
8516 KB |
Output is correct |
8 |
Correct |
60 ms |
8428 KB |
Output is correct |
9 |
Correct |
80 ms |
8436 KB |
Output is correct |
10 |
Correct |
55 ms |
8472 KB |
Output is correct |
11 |
Correct |
61 ms |
8468 KB |
Output is correct |
12 |
Correct |
80 ms |
8496 KB |
Output is correct |
13 |
Correct |
72 ms |
8452 KB |
Output is correct |
14 |
Correct |
58 ms |
8484 KB |
Output is correct |
15 |
Correct |
72 ms |
8500 KB |
Output is correct |
16 |
Correct |
70 ms |
8516 KB |
Output is correct |
17 |
Correct |
69 ms |
8456 KB |
Output is correct |
18 |
Correct |
645 ms |
63616 KB |
Output is correct |
19 |
Correct |
691 ms |
63492 KB |
Output is correct |
20 |
Correct |
705 ms |
63584 KB |
Output is correct |
21 |
Correct |
61 ms |
8516 KB |
Output is correct |
22 |
Correct |
66 ms |
8400 KB |
Output is correct |
23 |
Correct |
112 ms |
3296 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
67 ms |
8516 KB |
Output is correct |
3 |
Correct |
66 ms |
8476 KB |
Output is correct |
4 |
Correct |
730 ms |
64708 KB |
Output is correct |
5 |
Correct |
65 ms |
8520 KB |
Output is correct |
6 |
Correct |
65 ms |
8420 KB |
Output is correct |
7 |
Correct |
80 ms |
8424 KB |
Output is correct |
8 |
Correct |
78 ms |
8492 KB |
Output is correct |
9 |
Correct |
65 ms |
8492 KB |
Output is correct |
10 |
Correct |
61 ms |
8428 KB |
Output is correct |
11 |
Correct |
68 ms |
8384 KB |
Output is correct |
12 |
Correct |
67 ms |
8240 KB |
Output is correct |
13 |
Correct |
74 ms |
8320 KB |
Output is correct |
14 |
Correct |
741 ms |
63888 KB |
Output is correct |
15 |
Correct |
57 ms |
8324 KB |
Output is correct |
16 |
Correct |
660 ms |
63948 KB |
Output is correct |
17 |
Correct |
673 ms |
63904 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
6 ms |
1200 KB |
Output is correct |
3 |
Correct |
6 ms |
1208 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
308 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
6 ms |
1228 KB |
Output is correct |
17 |
Correct |
74 ms |
8404 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
308 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
0 ms |
204 KB |
Output is correct |
22 |
Correct |
0 ms |
204 KB |
Output is correct |
23 |
Correct |
0 ms |
204 KB |
Output is correct |
24 |
Correct |
1 ms |
204 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
2 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
236 ms |
1120 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
641 ms |
63652 KB |
Output is correct |
31 |
Correct |
694 ms |
63608 KB |
Output is correct |
32 |
Correct |
727 ms |
63716 KB |
Output is correct |
33 |
Correct |
0 ms |
204 KB |
Output is correct |
34 |
Correct |
679 ms |
63612 KB |
Output is correct |
35 |
Correct |
692 ms |
63672 KB |
Output is correct |
36 |
Correct |
651 ms |
63616 KB |
Output is correct |
37 |
Correct |
731 ms |
63572 KB |
Output is correct |
38 |
Correct |
0 ms |
308 KB |
Output is correct |
39 |
Correct |
61 ms |
8480 KB |
Output is correct |
40 |
Correct |
56 ms |
8516 KB |
Output is correct |
41 |
Correct |
60 ms |
8428 KB |
Output is correct |
42 |
Correct |
80 ms |
8436 KB |
Output is correct |
43 |
Correct |
55 ms |
8472 KB |
Output is correct |
44 |
Correct |
61 ms |
8468 KB |
Output is correct |
45 |
Correct |
80 ms |
8496 KB |
Output is correct |
46 |
Correct |
72 ms |
8452 KB |
Output is correct |
47 |
Correct |
58 ms |
8484 KB |
Output is correct |
48 |
Correct |
72 ms |
8500 KB |
Output is correct |
49 |
Correct |
70 ms |
8516 KB |
Output is correct |
50 |
Correct |
69 ms |
8456 KB |
Output is correct |
51 |
Correct |
645 ms |
63616 KB |
Output is correct |
52 |
Correct |
691 ms |
63492 KB |
Output is correct |
53 |
Correct |
705 ms |
63584 KB |
Output is correct |
54 |
Correct |
61 ms |
8516 KB |
Output is correct |
55 |
Correct |
66 ms |
8400 KB |
Output is correct |
56 |
Correct |
112 ms |
3296 KB |
Output is correct |
57 |
Correct |
1 ms |
204 KB |
Output is correct |
58 |
Correct |
67 ms |
8516 KB |
Output is correct |
59 |
Correct |
66 ms |
8476 KB |
Output is correct |
60 |
Correct |
730 ms |
64708 KB |
Output is correct |
61 |
Correct |
65 ms |
8520 KB |
Output is correct |
62 |
Correct |
65 ms |
8420 KB |
Output is correct |
63 |
Correct |
80 ms |
8424 KB |
Output is correct |
64 |
Correct |
78 ms |
8492 KB |
Output is correct |
65 |
Correct |
65 ms |
8492 KB |
Output is correct |
66 |
Correct |
61 ms |
8428 KB |
Output is correct |
67 |
Correct |
68 ms |
8384 KB |
Output is correct |
68 |
Correct |
67 ms |
8240 KB |
Output is correct |
69 |
Correct |
74 ms |
8320 KB |
Output is correct |
70 |
Correct |
741 ms |
63888 KB |
Output is correct |
71 |
Correct |
57 ms |
8324 KB |
Output is correct |
72 |
Correct |
660 ms |
63948 KB |
Output is correct |
73 |
Correct |
673 ms |
63904 KB |
Output is correct |
74 |
Correct |
1 ms |
204 KB |
Output is correct |
75 |
Correct |
0 ms |
204 KB |
Output is correct |
76 |
Correct |
1 ms |
256 KB |
Output is correct |
77 |
Correct |
0 ms |
204 KB |
Output is correct |
78 |
Correct |
1 ms |
296 KB |
Output is correct |
79 |
Correct |
8 ms |
1220 KB |
Output is correct |
80 |
Correct |
771 ms |
63936 KB |
Output is correct |
81 |
Correct |
691 ms |
64012 KB |
Output is correct |
82 |
Correct |
712 ms |
64008 KB |
Output is correct |
83 |
Correct |
740 ms |
64060 KB |
Output is correct |
84 |
Correct |
723 ms |
63944 KB |
Output is correct |
85 |
Correct |
681 ms |
63852 KB |
Output is correct |
86 |
Correct |
115 ms |
11524 KB |
Output is correct |
87 |
Correct |
1 ms |
204 KB |
Output is correct |