#include <bits/stdc++.h>
using namespace std;
#define int long long
void solve() {
int n, a, b;
cin >> n >> a >> b;
if (b >= 3e18 / a) {
int ans = 0;
while (n--) {
int l, r;
cin >> l >> r;
ans += r - l + 1;
}
cout << ans << endl;
return;
}
priority_queue<pair<int, bool>, vector<pair<int, bool> >, greater<pair<int, bool> > > pq;
int mod = a * b;
while (n--) {
int l, r;
cin >> l >> r;
l %= mod; r %= mod;
if (l > r) {
pq.push({l, true});
pq.push({mod, false});
pq.push({0, true});
pq.push({r + 1, false});
} else {
pq.push({l, true});
pq.push({r + 1, false});
}
}
int prev = 0, ans = 0;
int cnt = 0;
while (!pq.empty()) {
pair<int, bool> cur = pq.top();
pq.pop();
if (cnt) ans += cur.first - prev;
prev = cur.first;
cnt += (cur.second ? 1 : -1);
}
cout << ans << endl;
}
signed main() {
solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
15 ms |
1184 KB |
Output is correct |
3 |
Correct |
15 ms |
1176 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Incorrect |
1 ms |
296 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
300 KB |
Output is correct |
2 |
Correct |
2 ms |
316 KB |
Output is correct |
3 |
Correct |
2 ms |
340 KB |
Output is correct |
4 |
Correct |
2 ms |
400 KB |
Output is correct |
5 |
Correct |
1067 ms |
57012 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1445 ms |
33348 KB |
Output is correct |
3 |
Incorrect |
1435 ms |
33240 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1445 ms |
33348 KB |
Output is correct |
3 |
Incorrect |
1435 ms |
33240 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1445 ms |
33348 KB |
Output is correct |
3 |
Incorrect |
1435 ms |
33240 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
150 ms |
4696 KB |
Output is correct |
3 |
Correct |
149 ms |
4700 KB |
Output is correct |
4 |
Correct |
1454 ms |
33272 KB |
Output is correct |
5 |
Correct |
144 ms |
4772 KB |
Output is correct |
6 |
Correct |
146 ms |
4680 KB |
Output is correct |
7 |
Correct |
140 ms |
4708 KB |
Output is correct |
8 |
Correct |
143 ms |
4752 KB |
Output is correct |
9 |
Correct |
145 ms |
4732 KB |
Output is correct |
10 |
Correct |
142 ms |
4744 KB |
Output is correct |
11 |
Correct |
142 ms |
4688 KB |
Output is correct |
12 |
Correct |
144 ms |
4812 KB |
Output is correct |
13 |
Correct |
147 ms |
7236 KB |
Output is correct |
14 |
Correct |
1437 ms |
68940 KB |
Output is correct |
15 |
Incorrect |
148 ms |
7160 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
15 ms |
1184 KB |
Output is correct |
3 |
Correct |
15 ms |
1176 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |