#include <bits/stdc++.h>
// author: aykhn
using namespace std;
typedef long long ll;
#define TC int t; cin >> t; while (t--) _();
#define OPT ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(v) v.begin(), v.end()
#define pii pair<int, int>
#define mpr make_pair
#define eb emplace_back
#define new int32_t
#define pb push_back
#define ts to_string
#define fi first
#define se second
#define int ll
#define ins insert
#define inf 0x3F3F3F3F
#define infll 0x3F3F3F3F3F3F3F3FLL
#define bpc __builtin_popcount
__int128 n, a, b;
/*int x(int i)
{
return (i + i/b) % a;
}
int y(int i)
{
return i % b;
}*/
__int128 read() {
__int128 x = 0, f = 1;
char ch = getchar();
while (ch < '0' || ch > '9') {
if (ch == '-') f = -1;
ch = getchar();
}
while (ch >= '0' && ch <= '9') {
x = x * 10 + ch - '0';
ch = getchar();
}
return x * f;
}
void print(__int128 x) {
if (x < 0) {
putchar('-');
x = -x;
}
if (x > 9) print(x / 10);
putchar(x % 10 + '0');
}
bool cmp(__int128 x, __int128 y) { return x >= y; }
new main()
{
n = read();
a = read();
b = read();
__int128 x = a/__gcd(a, b + 1) * b;
set<pair<__int128, __int128>> s;
for (__int128 i = 0; i < n; i++)
{
__int128 a, b;
a = read();
b = read();
if (b - a + 1 >= x)
{
s.ins(mpr(1, x));
}
else
{
__int128 l = a % x + 1;
__int128 r = b % x + 1;
if (l <= r)
{
s.ins(mpr(l, r));
}
else
{
s.ins(mpr(l, x));
s.ins(mpr(1, r));
}
}
}
set<pair<__int128, __int128>> nw;
while (s.size() > 1)
{
auto it = s.begin();
pair<__int128, __int128> a = *it;
it++;
pair<__int128, __int128> b = *it;
if (max(a.fi, b.fi) <= min(a.se, b.se))
{
s.erase(s.begin());
s.erase(s.begin());
s.ins(mpr(min(a.fi, b.fi), max(a.se, b.se)));
}
else
{
s.erase(s.begin());
nw.ins(a);
}
}
nw.ins(*s.begin());
__int128 res = 0;
for (pii a : nw)
{
res += a.se - a.fi + 1;
}
print(res);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
4 ms |
1364 KB |
Output is correct |
3 |
Correct |
4 ms |
1428 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
296 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
304 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 |
296 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 |
1452 KB |
Output is correct |
17 |
Correct |
44 ms |
11708 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 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 |
1 ms |
300 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
216 KB |
Output is correct |
2 |
Correct |
1 ms |
352 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
312 KB |
Output is correct |
5 |
Correct |
178 ms |
1944 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
288 KB |
Output is correct |
2 |
Correct |
491 ms |
81896 KB |
Output is correct |
3 |
Correct |
488 ms |
81900 KB |
Output is correct |
4 |
Correct |
519 ms |
81860 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
288 KB |
Output is correct |
2 |
Correct |
491 ms |
81896 KB |
Output is correct |
3 |
Correct |
488 ms |
81900 KB |
Output is correct |
4 |
Correct |
519 ms |
81860 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
485 ms |
81868 KB |
Output is correct |
7 |
Correct |
496 ms |
81888 KB |
Output is correct |
8 |
Correct |
488 ms |
79732 KB |
Output is correct |
9 |
Correct |
538 ms |
79656 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
288 KB |
Output is correct |
2 |
Correct |
491 ms |
81896 KB |
Output is correct |
3 |
Correct |
488 ms |
81900 KB |
Output is correct |
4 |
Correct |
519 ms |
81860 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
44 ms |
9164 KB |
Output is correct |
7 |
Correct |
40 ms |
9252 KB |
Output is correct |
8 |
Correct |
39 ms |
9232 KB |
Output is correct |
9 |
Correct |
45 ms |
9212 KB |
Output is correct |
10 |
Correct |
39 ms |
9236 KB |
Output is correct |
11 |
Correct |
42 ms |
9216 KB |
Output is correct |
12 |
Correct |
44 ms |
9260 KB |
Output is correct |
13 |
Correct |
44 ms |
9156 KB |
Output is correct |
14 |
Correct |
39 ms |
9240 KB |
Output is correct |
15 |
Correct |
47 ms |
9164 KB |
Output is correct |
16 |
Correct |
46 ms |
9240 KB |
Output is correct |
17 |
Correct |
56 ms |
9472 KB |
Output is correct |
18 |
Correct |
476 ms |
79692 KB |
Output is correct |
19 |
Correct |
510 ms |
79816 KB |
Output is correct |
20 |
Correct |
543 ms |
79724 KB |
Output is correct |
21 |
Correct |
40 ms |
9164 KB |
Output is correct |
22 |
Correct |
42 ms |
9260 KB |
Output is correct |
23 |
Correct |
51 ms |
1436 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
47 ms |
9152 KB |
Output is correct |
3 |
Correct |
50 ms |
9160 KB |
Output is correct |
4 |
Correct |
507 ms |
79724 KB |
Output is correct |
5 |
Correct |
46 ms |
9288 KB |
Output is correct |
6 |
Correct |
48 ms |
9232 KB |
Output is correct |
7 |
Correct |
49 ms |
9236 KB |
Output is correct |
8 |
Correct |
47 ms |
9252 KB |
Output is correct |
9 |
Correct |
47 ms |
9164 KB |
Output is correct |
10 |
Correct |
41 ms |
9220 KB |
Output is correct |
11 |
Correct |
42 ms |
9256 KB |
Output is correct |
12 |
Correct |
43 ms |
9212 KB |
Output is correct |
13 |
Correct |
50 ms |
9252 KB |
Output is correct |
14 |
Correct |
544 ms |
79724 KB |
Output is correct |
15 |
Correct |
40 ms |
9260 KB |
Output is correct |
16 |
Correct |
467 ms |
79660 KB |
Output is correct |
17 |
Correct |
469 ms |
79524 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
4 ms |
1364 KB |
Output is correct |
3 |
Correct |
4 ms |
1428 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
300 KB |
Output is correct |
7 |
Correct |
1 ms |
296 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
304 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 |
296 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 |
1452 KB |
Output is correct |
17 |
Correct |
44 ms |
11708 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
0 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 |
1 ms |
300 KB |
Output is correct |
24 |
Correct |
0 ms |
216 KB |
Output is correct |
25 |
Correct |
1 ms |
352 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
312 KB |
Output is correct |
28 |
Correct |
178 ms |
1944 KB |
Output is correct |
29 |
Correct |
1 ms |
288 KB |
Output is correct |
30 |
Correct |
491 ms |
81896 KB |
Output is correct |
31 |
Correct |
488 ms |
81900 KB |
Output is correct |
32 |
Correct |
519 ms |
81860 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
485 ms |
81868 KB |
Output is correct |
35 |
Correct |
496 ms |
81888 KB |
Output is correct |
36 |
Correct |
488 ms |
79732 KB |
Output is correct |
37 |
Correct |
538 ms |
79656 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
44 ms |
9164 KB |
Output is correct |
40 |
Correct |
40 ms |
9252 KB |
Output is correct |
41 |
Correct |
39 ms |
9232 KB |
Output is correct |
42 |
Correct |
45 ms |
9212 KB |
Output is correct |
43 |
Correct |
39 ms |
9236 KB |
Output is correct |
44 |
Correct |
42 ms |
9216 KB |
Output is correct |
45 |
Correct |
44 ms |
9260 KB |
Output is correct |
46 |
Correct |
44 ms |
9156 KB |
Output is correct |
47 |
Correct |
39 ms |
9240 KB |
Output is correct |
48 |
Correct |
47 ms |
9164 KB |
Output is correct |
49 |
Correct |
46 ms |
9240 KB |
Output is correct |
50 |
Correct |
56 ms |
9472 KB |
Output is correct |
51 |
Correct |
476 ms |
79692 KB |
Output is correct |
52 |
Correct |
510 ms |
79816 KB |
Output is correct |
53 |
Correct |
543 ms |
79724 KB |
Output is correct |
54 |
Correct |
40 ms |
9164 KB |
Output is correct |
55 |
Correct |
42 ms |
9260 KB |
Output is correct |
56 |
Correct |
51 ms |
1436 KB |
Output is correct |
57 |
Correct |
1 ms |
212 KB |
Output is correct |
58 |
Correct |
47 ms |
9152 KB |
Output is correct |
59 |
Correct |
50 ms |
9160 KB |
Output is correct |
60 |
Correct |
507 ms |
79724 KB |
Output is correct |
61 |
Correct |
46 ms |
9288 KB |
Output is correct |
62 |
Correct |
48 ms |
9232 KB |
Output is correct |
63 |
Correct |
49 ms |
9236 KB |
Output is correct |
64 |
Correct |
47 ms |
9252 KB |
Output is correct |
65 |
Correct |
47 ms |
9164 KB |
Output is correct |
66 |
Correct |
41 ms |
9220 KB |
Output is correct |
67 |
Correct |
42 ms |
9256 KB |
Output is correct |
68 |
Correct |
43 ms |
9212 KB |
Output is correct |
69 |
Correct |
50 ms |
9252 KB |
Output is correct |
70 |
Correct |
544 ms |
79724 KB |
Output is correct |
71 |
Correct |
40 ms |
9260 KB |
Output is correct |
72 |
Correct |
467 ms |
79660 KB |
Output is correct |
73 |
Correct |
469 ms |
79524 KB |
Output is correct |
74 |
Correct |
0 ms |
212 KB |
Output is correct |
75 |
Correct |
0 ms |
212 KB |
Output is correct |
76 |
Correct |
0 ms |
212 KB |
Output is correct |
77 |
Correct |
0 ms |
212 KB |
Output is correct |
78 |
Correct |
0 ms |
212 KB |
Output is correct |
79 |
Correct |
6 ms |
1336 KB |
Output is correct |
80 |
Correct |
549 ms |
115752 KB |
Output is correct |
81 |
Correct |
521 ms |
115840 KB |
Output is correct |
82 |
Correct |
607 ms |
115660 KB |
Output is correct |
83 |
Correct |
596 ms |
115752 KB |
Output is correct |
84 |
Correct |
566 ms |
115800 KB |
Output is correct |
85 |
Correct |
536 ms |
115764 KB |
Output is correct |
86 |
Correct |
52 ms |
12804 KB |
Output is correct |
87 |
Correct |
1 ms |
212 KB |
Output is correct |