#include <bits/stdc++.h>
#define fastInput ios::sync_with_stdio(false); cin.tie(nullptr);
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef pair<ll, ll> pii;
typedef vector<pii> vp;
typedef vector<bool> vb;
typedef vector<vb> vvb;
ll A, B;
inline pii getTime(ll t) {
ll x = (t + (t / B)) % A;
ll y = t % B;
return { x,y };
}
inline void pushTime(pii p, ll mod, vp &points) {
if (p.first % mod <= p.second % mod) {
points.push_back({ p.first % mod, p.second % mod });
}
else {
points.push_back({ p.first % mod, mod - 1 });
points.push_back({ 0, p.second % mod });
}
}
ll gcd(ll a, ll b) {
if (b == 0) {
return a;
}
else {
return gcd(b, a % b);
}
}
const ll inf = 1e18 + 1;
int main() {
fastInput;
int n;
cin >> n >> A >> B;
ll mod = inf;
A /= gcd(A, B + 1);
if (A <= inf / B) {
mod = A * B;
}
vp times(n);
vp points;
ll l, r;
for (int i = 0; i < n; i++) {
cin >> l >> r;
times[i] = {l,r};
if (r - l + 1 >= mod) {
cout << mod;
return 0;
}
pushTime(times[i], mod, points);
}
sort(points.begin(), points.end());
ll count = 0;
ll last = points[0].second;
ll start = points[0].first;
for (int i = 0; i < points.size(); i++) {
if (points[i].first > last) {
ll amount = last - start + 1;
start = points[i].first;
count += amount;
last = points[i].second;
}
else last = max(last, points[i].second);
}
ll amount = last - start + 1;
count += amount;
cout << count;
return 0;
}
Compilation message
strange_device.cpp: In function 'int main()':
strange_device.cpp:72:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
72 | for (int i = 0; i < points.size(); i++) {
| ~~^~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
4 ms |
852 KB |
Output is correct |
3 |
Correct |
4 ms |
852 KB |
Output is correct |
4 |
Correct |
0 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 |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 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 |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
6 ms |
852 KB |
Output is correct |
17 |
Correct |
42 ms |
4048 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
324 ms |
32408 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
408 ms |
32448 KB |
Output is correct |
3 |
Correct |
390 ms |
32496 KB |
Output is correct |
4 |
Correct |
396 ms |
32512 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
408 ms |
32448 KB |
Output is correct |
3 |
Correct |
390 ms |
32496 KB |
Output is correct |
4 |
Correct |
396 ms |
32512 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
418 ms |
32436 KB |
Output is correct |
7 |
Correct |
403 ms |
32432 KB |
Output is correct |
8 |
Correct |
382 ms |
32552 KB |
Output is correct |
9 |
Correct |
434 ms |
32504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
408 ms |
32448 KB |
Output is correct |
3 |
Correct |
390 ms |
32496 KB |
Output is correct |
4 |
Correct |
396 ms |
32512 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
38 ms |
4068 KB |
Output is correct |
7 |
Correct |
41 ms |
4040 KB |
Output is correct |
8 |
Correct |
37 ms |
4080 KB |
Output is correct |
9 |
Correct |
39 ms |
3984 KB |
Output is correct |
10 |
Correct |
38 ms |
4076 KB |
Output is correct |
11 |
Correct |
49 ms |
3964 KB |
Output is correct |
12 |
Correct |
37 ms |
4072 KB |
Output is correct |
13 |
Correct |
41 ms |
4080 KB |
Output is correct |
14 |
Correct |
36 ms |
4028 KB |
Output is correct |
15 |
Correct |
40 ms |
4048 KB |
Output is correct |
16 |
Correct |
44 ms |
4064 KB |
Output is correct |
17 |
Correct |
42 ms |
3956 KB |
Output is correct |
18 |
Correct |
387 ms |
32432 KB |
Output is correct |
19 |
Correct |
401 ms |
32500 KB |
Output is correct |
20 |
Correct |
415 ms |
32480 KB |
Output is correct |
21 |
Correct |
52 ms |
4040 KB |
Output is correct |
22 |
Correct |
43 ms |
4000 KB |
Output is correct |
23 |
Correct |
118 ms |
14004 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
40 ms |
3996 KB |
Output is correct |
3 |
Correct |
40 ms |
4100 KB |
Output is correct |
4 |
Correct |
491 ms |
32552 KB |
Output is correct |
5 |
Correct |
40 ms |
4044 KB |
Output is correct |
6 |
Correct |
39 ms |
4068 KB |
Output is correct |
7 |
Correct |
42 ms |
4012 KB |
Output is correct |
8 |
Correct |
43 ms |
3960 KB |
Output is correct |
9 |
Correct |
41 ms |
4040 KB |
Output is correct |
10 |
Correct |
40 ms |
4024 KB |
Output is correct |
11 |
Correct |
40 ms |
3996 KB |
Output is correct |
12 |
Correct |
36 ms |
4092 KB |
Output is correct |
13 |
Correct |
39 ms |
3996 KB |
Output is correct |
14 |
Correct |
464 ms |
32480 KB |
Output is correct |
15 |
Correct |
42 ms |
4044 KB |
Output is correct |
16 |
Correct |
374 ms |
32432 KB |
Output is correct |
17 |
Correct |
500 ms |
32524 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 |
852 KB |
Output is correct |
3 |
Correct |
4 ms |
852 KB |
Output is correct |
4 |
Correct |
0 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 |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 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 |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
6 ms |
852 KB |
Output is correct |
17 |
Correct |
42 ms |
4048 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
320 KB |
Output is correct |
24 |
Correct |
0 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 |
324 ms |
32408 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
408 ms |
32448 KB |
Output is correct |
31 |
Correct |
390 ms |
32496 KB |
Output is correct |
32 |
Correct |
396 ms |
32512 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
418 ms |
32436 KB |
Output is correct |
35 |
Correct |
403 ms |
32432 KB |
Output is correct |
36 |
Correct |
382 ms |
32552 KB |
Output is correct |
37 |
Correct |
434 ms |
32504 KB |
Output is correct |
38 |
Correct |
0 ms |
212 KB |
Output is correct |
39 |
Correct |
38 ms |
4068 KB |
Output is correct |
40 |
Correct |
41 ms |
4040 KB |
Output is correct |
41 |
Correct |
37 ms |
4080 KB |
Output is correct |
42 |
Correct |
39 ms |
3984 KB |
Output is correct |
43 |
Correct |
38 ms |
4076 KB |
Output is correct |
44 |
Correct |
49 ms |
3964 KB |
Output is correct |
45 |
Correct |
37 ms |
4072 KB |
Output is correct |
46 |
Correct |
41 ms |
4080 KB |
Output is correct |
47 |
Correct |
36 ms |
4028 KB |
Output is correct |
48 |
Correct |
40 ms |
4048 KB |
Output is correct |
49 |
Correct |
44 ms |
4064 KB |
Output is correct |
50 |
Correct |
42 ms |
3956 KB |
Output is correct |
51 |
Correct |
387 ms |
32432 KB |
Output is correct |
52 |
Correct |
401 ms |
32500 KB |
Output is correct |
53 |
Correct |
415 ms |
32480 KB |
Output is correct |
54 |
Correct |
52 ms |
4040 KB |
Output is correct |
55 |
Correct |
43 ms |
4000 KB |
Output is correct |
56 |
Correct |
118 ms |
14004 KB |
Output is correct |
57 |
Correct |
0 ms |
212 KB |
Output is correct |
58 |
Correct |
40 ms |
3996 KB |
Output is correct |
59 |
Correct |
40 ms |
4100 KB |
Output is correct |
60 |
Correct |
491 ms |
32552 KB |
Output is correct |
61 |
Correct |
40 ms |
4044 KB |
Output is correct |
62 |
Correct |
39 ms |
4068 KB |
Output is correct |
63 |
Correct |
42 ms |
4012 KB |
Output is correct |
64 |
Correct |
43 ms |
3960 KB |
Output is correct |
65 |
Correct |
41 ms |
4040 KB |
Output is correct |
66 |
Correct |
40 ms |
4024 KB |
Output is correct |
67 |
Correct |
40 ms |
3996 KB |
Output is correct |
68 |
Correct |
36 ms |
4092 KB |
Output is correct |
69 |
Correct |
39 ms |
3996 KB |
Output is correct |
70 |
Correct |
464 ms |
32480 KB |
Output is correct |
71 |
Correct |
42 ms |
4044 KB |
Output is correct |
72 |
Correct |
374 ms |
32432 KB |
Output is correct |
73 |
Correct |
500 ms |
32524 KB |
Output is correct |
74 |
Correct |
0 ms |
212 KB |
Output is correct |
75 |
Correct |
1 ms |
324 KB |
Output is correct |
76 |
Correct |
0 ms |
212 KB |
Output is correct |
77 |
Correct |
1 ms |
212 KB |
Output is correct |
78 |
Correct |
1 ms |
312 KB |
Output is correct |
79 |
Correct |
4 ms |
1236 KB |
Output is correct |
80 |
Correct |
477 ms |
68928 KB |
Output is correct |
81 |
Correct |
496 ms |
69036 KB |
Output is correct |
82 |
Correct |
509 ms |
68988 KB |
Output is correct |
83 |
Correct |
465 ms |
68872 KB |
Output is correct |
84 |
Correct |
447 ms |
68928 KB |
Output is correct |
85 |
Correct |
453 ms |
68912 KB |
Output is correct |
86 |
Correct |
131 ms |
23820 KB |
Output is correct |
87 |
Correct |
1 ms |
316 KB |
Output is correct |