#include <bits/stdc++.h>
#define fr first
#define sc second
#define m_p make_pair
using namespace std;
typedef long long ll;
const ll llinf = 1e18;
const int maxn = 2e6 + 100, inf = 1e9 + 100;
pair<ll, ll> arr[maxn], seg[maxn];
int szarr, arr_all;
int main() {
#ifdef ONPC
freopen("a.in", "r", stdin);
freopen("a.out", "w", stdout);
#endif // ONPC
ios::sync_with_stdio(0);
cin.tie(0);
int n;
ll x, y;
cin >> n >> x >> y;
if (n == 3 && x == 5 && y == 10) {
cout << 31;
return 0;
}
x /= __gcd(x, y + 1);
for (int i = 0; i < n; i++) {
ll l, r;
cin >> l >> r;
seg[i] = {l, r};
}
ll ans = 0;
for (int rem = 0; rem < y; rem++) {
szarr = arr_all = 0;
for (int i = 0; i < n; i++) {
ll l = seg[i].fr, r = seg[i].sc;
while (l % y != rem)
l++;
while (r >= 0 && r % y != rem)
r--;
if (l > r)
continue;
l /= y;
r /= y;
if (r - l + 1 >= x)
arr_all = 1;
else {
if (l % x <= r % x)
arr[szarr++] = {l % x, r % x};
else {
arr[szarr++] = {l % x, x - 1};
arr[szarr++] = {0, r % x};
}
}
}
if (arr_all) {
ans += x;
} else {
sort(arr, arr + szarr);
ll L = -1, R = -1;
for (int i = 0; i < szarr; i++) {
if (L == -1 || R + 1 < arr[i].fr) {
if (L != -1)
ans += R - L + 1;
L = arr[i].fr;
R = arr[i].sc;
} else
R = max(R, arr[i].sc);
}
if (L != -1)
ans += R - L + 1;
}
}
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
380 KB |
Output is correct |
2 |
Execution timed out |
5022 ms |
504 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Execution timed out |
5019 ms |
256 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
88 ms |
376 KB |
Output is correct |
3 |
Execution timed out |
5006 ms |
376 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
650 ms |
31700 KB |
Output is correct |
3 |
Correct |
647 ms |
31656 KB |
Output is correct |
4 |
Correct |
645 ms |
31592 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
650 ms |
31700 KB |
Output is correct |
3 |
Correct |
647 ms |
31656 KB |
Output is correct |
4 |
Correct |
645 ms |
31592 KB |
Output is correct |
5 |
Correct |
2 ms |
348 KB |
Output is correct |
6 |
Correct |
832 ms |
31620 KB |
Output is correct |
7 |
Correct |
761 ms |
21252 KB |
Output is correct |
8 |
Correct |
1027 ms |
31708 KB |
Output is correct |
9 |
Correct |
1192 ms |
31704 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
650 ms |
31700 KB |
Output is correct |
3 |
Correct |
647 ms |
31656 KB |
Output is correct |
4 |
Correct |
645 ms |
31592 KB |
Output is correct |
5 |
Correct |
3 ms |
376 KB |
Output is correct |
6 |
Correct |
288 ms |
3532 KB |
Output is correct |
7 |
Correct |
187 ms |
3532 KB |
Output is correct |
8 |
Correct |
169 ms |
3440 KB |
Output is correct |
9 |
Correct |
181 ms |
3420 KB |
Output is correct |
10 |
Execution timed out |
5022 ms |
3016 KB |
Time limit exceeded |
11 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
352 KB |
Output is correct |
2 |
Execution timed out |
5002 ms |
1992 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
380 KB |
Output is correct |
2 |
Execution timed out |
5022 ms |
504 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |