#define wiwihorz
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("sse")
#pragma loop-opt(on)
#define rep(i, a, b) for(int i = a; i <= b; i ++)
#define rrep(i, a, b) for(int i = b; i >= a; i --)
#define all(x) x.begin(), x.end()
#define ceil(a, b) ((a + b - 1) / (b))
#define int long long int
#define lld long double
#define pii pair<int, int>
#define random mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count())
#define INF 1000000000000000001
#define MOD 1000000007
#define eps (1e-9)
using namespace std;
#ifdef wiwihorz
#define print(a...)cerr<<"Line "<<__LINE__<<":",kout("["+string(#a)+"] = ", a)
void vprint(auto L,auto R){while(L<R)cerr<<*L<<" \n"[next(L) == R], ++L; }
void kout() { cerr << endl; }
template<class T1,class ... T2>void kout(T1 a,T2 ... e){cerr<<a<<" ",kout(e...);}
#else
#define print(...) 0
#define vprint(...) 0
#endif
#define x first
#define y second
namespace solver {
int n, A, B;
vector<pii> v, op;
void init_(int _n, int _A, int _B) {
n = _n, A = _A, B = _B;
v.assign(n + 1, {0, 0});
op.clear();
}
void solve() {
int tp = A / __gcd(A, B + 1), k, yes = 0;
if(tp > ceil(INF - 1, B)) k = INF;
else k = tp * B;
rep(i, 1, n) {
int L = v[i].x % k;
int R = v[i].y % k;
if(v[i].y - v[i].x >= k) {
cout << k << "\n";
return;
}
if(L > R) {
op.push_back({L, 1});
op.push_back({k, -1});
op.push_back({0, 1});
op.push_back({R + 1, -1});
}
else {
op.push_back({L, 1});
op.push_back({R + 1, -1});
}
}
sort(all(op));
int ans = 0, cnt = 0, cur = 0;
for(auto i : op) {
ans += (cnt > 0 ? i.x - cur : 0);
cnt += i.y;
cur = i.x;
}
cout << ans << "\n";
}
};
using namespace solver;
signed main() {
ios::sync_with_stdio(false), cin.tie(0);
int n, A, B;
cin >> n >> A >> B;
init_(n, A, B);
rep(i, 1, n) cin >> v[i].x >> v[i].y;
solve();
return 0;
}
Compilation message
strange_device.cpp:5: warning: ignoring '#pragma loop ' [-Wunknown-pragmas]
5 | #pragma loop-opt(on)
|
strange_device.cpp:20:13: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
20 | void vprint(auto L,auto R){while(L<R)cerr<<*L<<" \n"[next(L) == R], ++L; }
| ^~~~
strange_device.cpp:20:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
20 | void vprint(auto L,auto R){while(L<R)cerr<<*L<<" \n"[next(L) == R], ++L; }
| ^~~~
strange_device.cpp: In function 'void solver::solve()':
strange_device.cpp:38:36: warning: unused variable 'yes' [-Wunused-variable]
38 | int tp = A / __gcd(A, B + 1), k, yes = 0;
| ^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
1508 KB |
Output is correct |
3 |
Correct |
6 ms |
1624 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
5 ms |
1496 KB |
Output is correct |
17 |
Correct |
58 ms |
9808 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 |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
320 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
354 ms |
50208 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
522 ms |
60640 KB |
Output is correct |
3 |
Correct |
534 ms |
63100 KB |
Output is correct |
4 |
Correct |
496 ms |
68996 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
522 ms |
60640 KB |
Output is correct |
3 |
Correct |
534 ms |
63100 KB |
Output is correct |
4 |
Correct |
496 ms |
68996 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
508 ms |
69012 KB |
Output is correct |
7 |
Correct |
493 ms |
68932 KB |
Output is correct |
8 |
Correct |
518 ms |
68888 KB |
Output is correct |
9 |
Correct |
598 ms |
68788 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
522 ms |
60640 KB |
Output is correct |
3 |
Correct |
534 ms |
63100 KB |
Output is correct |
4 |
Correct |
496 ms |
68996 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
50 ms |
9800 KB |
Output is correct |
7 |
Correct |
51 ms |
9800 KB |
Output is correct |
8 |
Correct |
54 ms |
9792 KB |
Output is correct |
9 |
Correct |
52 ms |
9804 KB |
Output is correct |
10 |
Correct |
48 ms |
9804 KB |
Output is correct |
11 |
Correct |
50 ms |
9808 KB |
Output is correct |
12 |
Correct |
47 ms |
9788 KB |
Output is correct |
13 |
Correct |
52 ms |
9804 KB |
Output is correct |
14 |
Correct |
48 ms |
9808 KB |
Output is correct |
15 |
Correct |
57 ms |
9800 KB |
Output is correct |
16 |
Correct |
56 ms |
9792 KB |
Output is correct |
17 |
Correct |
50 ms |
9812 KB |
Output is correct |
18 |
Correct |
513 ms |
68592 KB |
Output is correct |
19 |
Correct |
499 ms |
68928 KB |
Output is correct |
20 |
Correct |
611 ms |
69080 KB |
Output is correct |
21 |
Correct |
55 ms |
9792 KB |
Output is correct |
22 |
Correct |
48 ms |
9792 KB |
Output is correct |
23 |
Correct |
141 ms |
34760 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
54 ms |
9800 KB |
Output is correct |
3 |
Correct |
53 ms |
9800 KB |
Output is correct |
4 |
Correct |
625 ms |
63192 KB |
Output is correct |
5 |
Correct |
62 ms |
9792 KB |
Output is correct |
6 |
Correct |
56 ms |
9804 KB |
Output is correct |
7 |
Correct |
54 ms |
9800 KB |
Output is correct |
8 |
Correct |
56 ms |
9792 KB |
Output is correct |
9 |
Correct |
51 ms |
9792 KB |
Output is correct |
10 |
Correct |
55 ms |
9792 KB |
Output is correct |
11 |
Correct |
53 ms |
9800 KB |
Output is correct |
12 |
Correct |
51 ms |
9792 KB |
Output is correct |
13 |
Correct |
54 ms |
9808 KB |
Output is correct |
14 |
Correct |
604 ms |
69088 KB |
Output is correct |
15 |
Correct |
56 ms |
9784 KB |
Output is correct |
16 |
Correct |
507 ms |
68496 KB |
Output is correct |
17 |
Correct |
532 ms |
69240 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
6 ms |
1508 KB |
Output is correct |
3 |
Correct |
6 ms |
1624 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
5 ms |
1496 KB |
Output is correct |
17 |
Correct |
58 ms |
9808 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
320 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
354 ms |
50208 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
522 ms |
60640 KB |
Output is correct |
31 |
Correct |
534 ms |
63100 KB |
Output is correct |
32 |
Correct |
496 ms |
68996 KB |
Output is correct |
33 |
Correct |
1 ms |
320 KB |
Output is correct |
34 |
Correct |
508 ms |
69012 KB |
Output is correct |
35 |
Correct |
493 ms |
68932 KB |
Output is correct |
36 |
Correct |
518 ms |
68888 KB |
Output is correct |
37 |
Correct |
598 ms |
68788 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
50 ms |
9800 KB |
Output is correct |
40 |
Correct |
51 ms |
9800 KB |
Output is correct |
41 |
Correct |
54 ms |
9792 KB |
Output is correct |
42 |
Correct |
52 ms |
9804 KB |
Output is correct |
43 |
Correct |
48 ms |
9804 KB |
Output is correct |
44 |
Correct |
50 ms |
9808 KB |
Output is correct |
45 |
Correct |
47 ms |
9788 KB |
Output is correct |
46 |
Correct |
52 ms |
9804 KB |
Output is correct |
47 |
Correct |
48 ms |
9808 KB |
Output is correct |
48 |
Correct |
57 ms |
9800 KB |
Output is correct |
49 |
Correct |
56 ms |
9792 KB |
Output is correct |
50 |
Correct |
50 ms |
9812 KB |
Output is correct |
51 |
Correct |
513 ms |
68592 KB |
Output is correct |
52 |
Correct |
499 ms |
68928 KB |
Output is correct |
53 |
Correct |
611 ms |
69080 KB |
Output is correct |
54 |
Correct |
55 ms |
9792 KB |
Output is correct |
55 |
Correct |
48 ms |
9792 KB |
Output is correct |
56 |
Correct |
141 ms |
34760 KB |
Output is correct |
57 |
Correct |
1 ms |
212 KB |
Output is correct |
58 |
Correct |
54 ms |
9800 KB |
Output is correct |
59 |
Correct |
53 ms |
9800 KB |
Output is correct |
60 |
Correct |
625 ms |
63192 KB |
Output is correct |
61 |
Correct |
62 ms |
9792 KB |
Output is correct |
62 |
Correct |
56 ms |
9804 KB |
Output is correct |
63 |
Correct |
54 ms |
9800 KB |
Output is correct |
64 |
Correct |
56 ms |
9792 KB |
Output is correct |
65 |
Correct |
51 ms |
9792 KB |
Output is correct |
66 |
Correct |
55 ms |
9792 KB |
Output is correct |
67 |
Correct |
53 ms |
9800 KB |
Output is correct |
68 |
Correct |
51 ms |
9792 KB |
Output is correct |
69 |
Correct |
54 ms |
9808 KB |
Output is correct |
70 |
Correct |
604 ms |
69088 KB |
Output is correct |
71 |
Correct |
56 ms |
9784 KB |
Output is correct |
72 |
Correct |
507 ms |
68496 KB |
Output is correct |
73 |
Correct |
532 ms |
69240 KB |
Output is correct |
74 |
Correct |
1 ms |
212 KB |
Output is correct |
75 |
Correct |
1 ms |
212 KB |
Output is correct |
76 |
Correct |
1 ms |
212 KB |
Output is correct |
77 |
Correct |
1 ms |
316 KB |
Output is correct |
78 |
Correct |
1 ms |
212 KB |
Output is correct |
79 |
Correct |
5 ms |
1512 KB |
Output is correct |
80 |
Correct |
646 ms |
76364 KB |
Output is correct |
81 |
Correct |
660 ms |
76080 KB |
Output is correct |
82 |
Correct |
628 ms |
75948 KB |
Output is correct |
83 |
Correct |
606 ms |
75932 KB |
Output is correct |
84 |
Correct |
605 ms |
75808 KB |
Output is correct |
85 |
Correct |
597 ms |
75692 KB |
Output is correct |
86 |
Correct |
142 ms |
34652 KB |
Output is correct |
87 |
Correct |
1 ms |
212 KB |
Output is correct |