//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define endl "\n"
#define all(c) (c).begin(),(c).end()
// when you ponder, divide and conquer
signed main() {
// freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout);
std::ios::sync_with_stdio(false);
cin.tie(0);
ll n, a, b;
cin >> n >> a >> b;
set<pair<ll, ll>> s;
for (int i = 0; i < n; i++) {
ll l, r;
cin >> l >> r;
for (ll t = l; t <= r; t++)
s.emplace((t+t/b) % a, t % b);
}
cout << s.size() << endl;
}
/* --- PSolving ---
* Simplifying (getting rid of variables, conditions, code logic, etc.)
* Reframing
* Solving a subtask (subgoal, aux. problem, removing a condition or fixing a parameter, etc.)
* Inducing
* Divide and conquer
* Working backwards
* Visual intuition
* !! Reductions don't have to be specializations, they can be generalizations
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
48 ms |
12720 KB |
Output is correct |
3 |
Correct |
74 ms |
18176 KB |
Output is correct |
4 |
Correct |
3 ms |
844 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
2 ms |
460 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
9 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
308 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
316 KB |
Output is correct |
15 |
Correct |
44 ms |
6988 KB |
Output is correct |
16 |
Correct |
29 ms |
7116 KB |
Output is correct |
17 |
Correct |
68 ms |
10304 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 |
Runtime error |
2547 ms |
524292 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
149 ms |
32228 KB |
Output is correct |
3 |
Correct |
212 ms |
32032 KB |
Output is correct |
4 |
Correct |
129 ms |
30620 KB |
Output is correct |
5 |
Execution timed out |
5093 ms |
62516 KB |
Time limit exceeded |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
627 ms |
65428 KB |
Output is correct |
3 |
Runtime error |
2154 ms |
524292 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
627 ms |
65428 KB |
Output is correct |
3 |
Runtime error |
2154 ms |
524292 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
627 ms |
65428 KB |
Output is correct |
3 |
Runtime error |
2154 ms |
524292 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Runtime error |
1851 ms |
524292 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
48 ms |
12720 KB |
Output is correct |
3 |
Correct |
74 ms |
18176 KB |
Output is correct |
4 |
Correct |
3 ms |
844 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
2 ms |
460 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
9 ms |
1100 KB |
Output is correct |
10 |
Correct |
1 ms |
308 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
316 KB |
Output is correct |
15 |
Correct |
44 ms |
6988 KB |
Output is correct |
16 |
Correct |
29 ms |
7116 KB |
Output is correct |
17 |
Correct |
68 ms |
10304 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Runtime error |
2547 ms |
524292 KB |
Execution killed with signal 9 |
21 |
Halted |
0 ms |
0 KB |
- |