#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define sz size()
#define pii pair <ll, ll>
const int N = 1e7 + 5;
#define ll long long
#define pb push_back
vector <pii> v;
ll n, a, b, l[N], r[N];
int main () {
// freopen ("input.txt", "r", stdin);
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin >> n >> a >> b;
__int128 m = a / __gcd (a, b + 1) * b;
for (int i = 1; i <= n; ++i) {
cin >> l[i] >> r[i];
}
if (r[n] < m) {
ll jog = 0;
for (int i = 1; i <= n; ++i) {
jog += r[i] - l[i] + 1;
}
cout << jog;
return 0;
}
for (int i = 1; i <= n; ++i) {
if (r[i] - l[i] + 1 >= m) {
return cout << (ll)m, 0;
}
if (l[i] % m > r[i] % m) {
v.pb ({l[i] % m, m - 1});
v.pb ({0, r[i] % m});
}
else {
v.pb ({l[i] % m, r[i] % m});
}
}
sort (v.begin(), v.end());
// for (auto i : v) {
// cout << i.ff << " " << i.ss << "\n";
// }
// return 0;
ll l1 = 0, r1 = 0, jogap = 0;
for (int i = 0; i < (int)v.sz; ++i) {
if (v[i].ff <= r1) r1 = max (r1, v[i].ss);
else {
jogap += r1 - l1 + 1;
l1 = v[i].ff;
r1 = v[i].ss;
}
}
jogap += r1 - l1 + 1;
cout << jogap;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Incorrect |
3 ms |
860 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
183 ms |
32452 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
277 ms |
32560 KB |
Output is correct |
3 |
Correct |
257 ms |
32452 KB |
Output is correct |
4 |
Correct |
263 ms |
32452 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
277 ms |
32560 KB |
Output is correct |
3 |
Correct |
257 ms |
32452 KB |
Output is correct |
4 |
Correct |
263 ms |
32452 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
254 ms |
32624 KB |
Output is correct |
7 |
Correct |
267 ms |
32452 KB |
Output is correct |
8 |
Correct |
257 ms |
32452 KB |
Output is correct |
9 |
Incorrect |
287 ms |
32448 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
277 ms |
32560 KB |
Output is correct |
3 |
Correct |
257 ms |
32452 KB |
Output is correct |
4 |
Correct |
263 ms |
32452 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
25 ms |
4056 KB |
Output is correct |
7 |
Correct |
39 ms |
4052 KB |
Output is correct |
8 |
Correct |
26 ms |
4056 KB |
Output is correct |
9 |
Correct |
26 ms |
4164 KB |
Output is correct |
10 |
Correct |
26 ms |
4048 KB |
Output is correct |
11 |
Correct |
27 ms |
4044 KB |
Output is correct |
12 |
Correct |
25 ms |
4056 KB |
Output is correct |
13 |
Incorrect |
28 ms |
4192 KB |
Output isn't correct |
14 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Incorrect |
28 ms |
4040 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Incorrect |
3 ms |
860 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |