#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n, a, b;
pair<ll, ll> t[2000005];
stack<pair<ll, ll>> st;
ll gcd(ll a, ll b) {
if(b == 0) return a;
else return gcd(b, a%b);
}
int main() {
ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
cin >> n >> a >> b;
ll g = gcd(a,b+1);
ll k = a/g;
ll tlimit = k * b;
int idx = 0;
for(int i = 0; i < n; i++) {
ll l, r; cin >> l >> r;
l %= tlimit; r %= tlimit;
if(l > r) {
t[idx++] = {l, tlimit-1};
t[idx++] = {0, r};
} else {
t[idx++] = {l, r};
}
}
sort(t, t+idx);
st.push(t[0]);
for(int i = 1; i < idx; i++) {
if(st.top().second < t[i].first)
st.push(t[i]);
else if(st.top().second < t[i].second)
st.top().second = t[i].second;
}
ll ans = 0;
while(!st.empty()) {
ans += 1ll * (st.top().second - st.top().first + 1);
st.pop();
}
cout << ans << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
10 ms |
1016 KB |
Output is correct |
3 |
Correct |
12 ms |
1152 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
4 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
4 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
4 ms |
384 KB |
Output is correct |
15 |
Correct |
4 ms |
384 KB |
Output is correct |
16 |
Correct |
9 ms |
1024 KB |
Output is correct |
17 |
Correct |
57 ms |
3960 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
360 ms |
16032 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
515 ms |
32532 KB |
Output is correct |
3 |
Correct |
494 ms |
32476 KB |
Output is correct |
4 |
Correct |
484 ms |
32568 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
515 ms |
32532 KB |
Output is correct |
3 |
Correct |
494 ms |
32476 KB |
Output is correct |
4 |
Correct |
484 ms |
32568 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
498 ms |
32428 KB |
Output is correct |
7 |
Correct |
498 ms |
32404 KB |
Output is correct |
8 |
Correct |
503 ms |
32684 KB |
Output is correct |
9 |
Correct |
522 ms |
32428 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
515 ms |
32532 KB |
Output is correct |
3 |
Correct |
494 ms |
32476 KB |
Output is correct |
4 |
Correct |
484 ms |
32568 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
56 ms |
4216 KB |
Output is correct |
7 |
Correct |
56 ms |
4216 KB |
Output is correct |
8 |
Correct |
53 ms |
4216 KB |
Output is correct |
9 |
Correct |
62 ms |
4216 KB |
Output is correct |
10 |
Correct |
54 ms |
4216 KB |
Output is correct |
11 |
Correct |
60 ms |
4140 KB |
Output is correct |
12 |
Correct |
53 ms |
4216 KB |
Output is correct |
13 |
Correct |
54 ms |
4216 KB |
Output is correct |
14 |
Correct |
51 ms |
4216 KB |
Output is correct |
15 |
Correct |
58 ms |
4216 KB |
Output is correct |
16 |
Correct |
55 ms |
4216 KB |
Output is correct |
17 |
Correct |
55 ms |
4216 KB |
Output is correct |
18 |
Correct |
485 ms |
32428 KB |
Output is correct |
19 |
Correct |
485 ms |
32556 KB |
Output is correct |
20 |
Correct |
544 ms |
32428 KB |
Output is correct |
21 |
Correct |
60 ms |
4344 KB |
Output is correct |
22 |
Correct |
53 ms |
4216 KB |
Output is correct |
23 |
Correct |
155 ms |
6136 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
55 ms |
4216 KB |
Output is correct |
3 |
Correct |
60 ms |
4216 KB |
Output is correct |
4 |
Correct |
570 ms |
32484 KB |
Output is correct |
5 |
Correct |
55 ms |
4216 KB |
Output is correct |
6 |
Correct |
59 ms |
4132 KB |
Output is correct |
7 |
Correct |
56 ms |
4216 KB |
Output is correct |
8 |
Correct |
56 ms |
4216 KB |
Output is correct |
9 |
Correct |
54 ms |
4216 KB |
Output is correct |
10 |
Correct |
56 ms |
4216 KB |
Output is correct |
11 |
Correct |
56 ms |
4216 KB |
Output is correct |
12 |
Correct |
51 ms |
4216 KB |
Output is correct |
13 |
Correct |
56 ms |
4216 KB |
Output is correct |
14 |
Correct |
524 ms |
32428 KB |
Output is correct |
15 |
Correct |
55 ms |
3964 KB |
Output is correct |
16 |
Correct |
488 ms |
32556 KB |
Output is correct |
17 |
Correct |
491 ms |
32556 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
10 ms |
1016 KB |
Output is correct |
3 |
Correct |
12 ms |
1152 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
4 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
4 ms |
384 KB |
Output is correct |
11 |
Correct |
4 ms |
384 KB |
Output is correct |
12 |
Correct |
4 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
384 KB |
Output is correct |
14 |
Correct |
4 ms |
384 KB |
Output is correct |
15 |
Correct |
4 ms |
384 KB |
Output is correct |
16 |
Correct |
9 ms |
1024 KB |
Output is correct |
17 |
Correct |
57 ms |
3960 KB |
Output is correct |
18 |
Correct |
5 ms |
384 KB |
Output is correct |
19 |
Correct |
4 ms |
384 KB |
Output is correct |
20 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |