#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
int n;
ll A, B;
cin >> n >> A >> B;
int L = 0;
set<pair<int, int>> s;
for (int i = 1; ; i++) {
int x = (i + i / B) % A, y = i % B;
if (s.find({x, y}) != s.end()) {
L = i - 1;
break;
}
s.insert({x, y});
}
vector<int> p(L + 1);
while (n--) {
ll l, r;
cin >> l >> r;
if (L <= r - l + 1) {
p[0]++;
continue;
}
p[l % L]++; p[r % L + 1]--;
if (l % L > r % L) p[0]++;
}
int cnt = 0;
for (int i = 0; i < L; i++) {
p[i] += p[i - 1];
cnt += !!p[i];
}
cout << cnt << '\n';
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1396 ms |
329660 KB |
Output is correct |
3 |
Correct |
1004 ms |
253040 KB |
Output is correct |
4 |
Correct |
3 ms |
1112 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
2 ms |
1116 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
17 ms |
6488 KB |
Output is correct |
16 |
Correct |
38 ms |
10244 KB |
Output is correct |
17 |
Correct |
425 ms |
104420 KB |
Output is correct |
18 |
Runtime error |
3254 ms |
524288 KB |
Execution killed with signal 9 |
19 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Runtime error |
3539 ms |
524288 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
177 ms |
49320 KB |
Output is correct |
3 |
Correct |
185 ms |
50004 KB |
Output is correct |
4 |
Correct |
154 ms |
41604 KB |
Output is correct |
5 |
Correct |
332 ms |
76372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
498 ms |
96140 KB |
Output is correct |
3 |
Runtime error |
3359 ms |
524288 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
498 ms |
96140 KB |
Output is correct |
3 |
Runtime error |
3359 ms |
524288 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
498 ms |
96140 KB |
Output is correct |
3 |
Runtime error |
3359 ms |
524288 KB |
Execution killed with signal 9 |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Runtime error |
1583 ms |
524288 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1396 ms |
329660 KB |
Output is correct |
3 |
Correct |
1004 ms |
253040 KB |
Output is correct |
4 |
Correct |
3 ms |
1112 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
2 ms |
1116 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
17 ms |
6488 KB |
Output is correct |
16 |
Correct |
38 ms |
10244 KB |
Output is correct |
17 |
Correct |
425 ms |
104420 KB |
Output is correct |
18 |
Runtime error |
3254 ms |
524288 KB |
Execution killed with signal 9 |
19 |
Halted |
0 ms |
0 KB |
- |