#include <bits/stdc++.h>
using namespace std;
const long long inf = 1e18;
int main() {
cin.tie(0)->sync_with_stdio(0);
long long n, a, b;
cin >> n >> a >> b;
long long k = a / __gcd(a, b + 1);
long long x = 1;
if(inf / k < b) x = inf + 5;
else x = b * k;
vector<pair<long long, bool>> p;
for(int i = 1; i <= n; i ++) {
long long l, r;
cin >> l >> r;
if(r - l + 1 >= x) {
cout << x << "\n";
return 0;
}
long long L = l % x;
long long R = r % x;
if(L <= R) {
p.push_back({L, true});
p.push_back({R + 1, false});
} else {
p.push_back({L, true});
p.push_back({x, false});
p.push_back({0, true});
p.push_back({R + 1, false});
}
}
sort(p.begin(), p.end());
long long total = 0;
int cnt = 0;
for(int i = 0; i < p.size(); i ++) {
if(cnt) {
total += p[i].first - p[i - 1].first;
}
cnt += (p[i].second ? 1 : -1);
}
cout << total << "\n";
return 0;
}
Compilation message
strange_device.cpp: In function 'int main()':
strange_device.cpp:48:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, bool> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | for(int i = 0; i < p.size(); i ++) {
| ~~^~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
1240 KB |
Output is correct |
3 |
Correct |
4 ms |
1240 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 |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 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 |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
256 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
5 ms |
1240 KB |
Output is correct |
17 |
Correct |
45 ms |
7256 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 |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
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 |
328 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
265 ms |
56824 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
393 ms |
68828 KB |
Output is correct |
3 |
Correct |
404 ms |
68780 KB |
Output is correct |
4 |
Correct |
372 ms |
68836 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
393 ms |
68828 KB |
Output is correct |
3 |
Correct |
404 ms |
68780 KB |
Output is correct |
4 |
Correct |
372 ms |
68836 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
409 ms |
68788 KB |
Output is correct |
7 |
Correct |
418 ms |
68808 KB |
Output is correct |
8 |
Correct |
397 ms |
68752 KB |
Output is correct |
9 |
Correct |
455 ms |
68880 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
393 ms |
68828 KB |
Output is correct |
3 |
Correct |
404 ms |
68780 KB |
Output is correct |
4 |
Correct |
372 ms |
68836 KB |
Output is correct |
5 |
Correct |
0 ms |
336 KB |
Output is correct |
6 |
Correct |
37 ms |
7232 KB |
Output is correct |
7 |
Correct |
42 ms |
7252 KB |
Output is correct |
8 |
Correct |
38 ms |
7292 KB |
Output is correct |
9 |
Correct |
37 ms |
7208 KB |
Output is correct |
10 |
Correct |
39 ms |
7292 KB |
Output is correct |
11 |
Correct |
39 ms |
7228 KB |
Output is correct |
12 |
Correct |
45 ms |
7276 KB |
Output is correct |
13 |
Correct |
42 ms |
7260 KB |
Output is correct |
14 |
Correct |
38 ms |
7232 KB |
Output is correct |
15 |
Correct |
43 ms |
7288 KB |
Output is correct |
16 |
Correct |
42 ms |
7244 KB |
Output is correct |
17 |
Correct |
38 ms |
7232 KB |
Output is correct |
18 |
Correct |
441 ms |
68772 KB |
Output is correct |
19 |
Correct |
369 ms |
68768 KB |
Output is correct |
20 |
Correct |
472 ms |
68836 KB |
Output is correct |
21 |
Correct |
47 ms |
7232 KB |
Output is correct |
22 |
Correct |
41 ms |
7268 KB |
Output is correct |
23 |
Correct |
107 ms |
26616 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
42 ms |
7232 KB |
Output is correct |
3 |
Correct |
42 ms |
7244 KB |
Output is correct |
4 |
Correct |
541 ms |
68984 KB |
Output is correct |
5 |
Correct |
41 ms |
7168 KB |
Output is correct |
6 |
Correct |
43 ms |
7256 KB |
Output is correct |
7 |
Correct |
41 ms |
7200 KB |
Output is correct |
8 |
Correct |
43 ms |
7228 KB |
Output is correct |
9 |
Correct |
41 ms |
7228 KB |
Output is correct |
10 |
Correct |
43 ms |
7244 KB |
Output is correct |
11 |
Correct |
43 ms |
7184 KB |
Output is correct |
12 |
Correct |
37 ms |
7228 KB |
Output is correct |
13 |
Correct |
44 ms |
7236 KB |
Output is correct |
14 |
Correct |
474 ms |
68856 KB |
Output is correct |
15 |
Correct |
44 ms |
7232 KB |
Output is correct |
16 |
Correct |
371 ms |
68764 KB |
Output is correct |
17 |
Correct |
397 ms |
68808 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 |
5 ms |
1240 KB |
Output is correct |
3 |
Correct |
4 ms |
1240 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 |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 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 |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
256 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
5 ms |
1240 KB |
Output is correct |
17 |
Correct |
45 ms |
7256 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 |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
328 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
265 ms |
56824 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
393 ms |
68828 KB |
Output is correct |
31 |
Correct |
404 ms |
68780 KB |
Output is correct |
32 |
Correct |
372 ms |
68836 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
409 ms |
68788 KB |
Output is correct |
35 |
Correct |
418 ms |
68808 KB |
Output is correct |
36 |
Correct |
397 ms |
68752 KB |
Output is correct |
37 |
Correct |
455 ms |
68880 KB |
Output is correct |
38 |
Correct |
0 ms |
336 KB |
Output is correct |
39 |
Correct |
37 ms |
7232 KB |
Output is correct |
40 |
Correct |
42 ms |
7252 KB |
Output is correct |
41 |
Correct |
38 ms |
7292 KB |
Output is correct |
42 |
Correct |
37 ms |
7208 KB |
Output is correct |
43 |
Correct |
39 ms |
7292 KB |
Output is correct |
44 |
Correct |
39 ms |
7228 KB |
Output is correct |
45 |
Correct |
45 ms |
7276 KB |
Output is correct |
46 |
Correct |
42 ms |
7260 KB |
Output is correct |
47 |
Correct |
38 ms |
7232 KB |
Output is correct |
48 |
Correct |
43 ms |
7288 KB |
Output is correct |
49 |
Correct |
42 ms |
7244 KB |
Output is correct |
50 |
Correct |
38 ms |
7232 KB |
Output is correct |
51 |
Correct |
441 ms |
68772 KB |
Output is correct |
52 |
Correct |
369 ms |
68768 KB |
Output is correct |
53 |
Correct |
472 ms |
68836 KB |
Output is correct |
54 |
Correct |
47 ms |
7232 KB |
Output is correct |
55 |
Correct |
41 ms |
7268 KB |
Output is correct |
56 |
Correct |
107 ms |
26616 KB |
Output is correct |
57 |
Correct |
1 ms |
336 KB |
Output is correct |
58 |
Correct |
42 ms |
7232 KB |
Output is correct |
59 |
Correct |
42 ms |
7244 KB |
Output is correct |
60 |
Correct |
541 ms |
68984 KB |
Output is correct |
61 |
Correct |
41 ms |
7168 KB |
Output is correct |
62 |
Correct |
43 ms |
7256 KB |
Output is correct |
63 |
Correct |
41 ms |
7200 KB |
Output is correct |
64 |
Correct |
43 ms |
7228 KB |
Output is correct |
65 |
Correct |
41 ms |
7228 KB |
Output is correct |
66 |
Correct |
43 ms |
7244 KB |
Output is correct |
67 |
Correct |
43 ms |
7184 KB |
Output is correct |
68 |
Correct |
37 ms |
7228 KB |
Output is correct |
69 |
Correct |
44 ms |
7236 KB |
Output is correct |
70 |
Correct |
474 ms |
68856 KB |
Output is correct |
71 |
Correct |
44 ms |
7232 KB |
Output is correct |
72 |
Correct |
371 ms |
68764 KB |
Output is correct |
73 |
Correct |
397 ms |
68808 KB |
Output is correct |
74 |
Correct |
1 ms |
212 KB |
Output is correct |
75 |
Correct |
1 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 |
316 KB |
Output is correct |
79 |
Correct |
4 ms |
1240 KB |
Output is correct |
80 |
Correct |
551 ms |
68760 KB |
Output is correct |
81 |
Correct |
574 ms |
68788 KB |
Output is correct |
82 |
Correct |
460 ms |
68764 KB |
Output is correct |
83 |
Correct |
476 ms |
68852 KB |
Output is correct |
84 |
Correct |
463 ms |
68780 KB |
Output is correct |
85 |
Correct |
448 ms |
68828 KB |
Output is correct |
86 |
Correct |
104 ms |
26612 KB |
Output is correct |
87 |
Correct |
0 ms |
212 KB |
Output is correct |