#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <ctime>
#include <cassert>
#include <complex>
#include <string>
#include <cstring>
#include <chrono>
#include <random>
#include <queue>
#include <bitset>
#define pb push_back
#define int long long
#define int2 __int128_t
#define str string
using namespace std;
const int M = 1e9 + 7;
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int n, a, b;
cin >> n >> a >> b;
vector<pair<int, int>> pr(n);
for (int i = 0; i < n; i++) cin >> pr[i].first >> pr[i].second;
int2 g = gcd(a, b + 1);
a /= g;
int2 num = a * b;
vector<pair<int2, int2>> ev;
for (auto p : pr) {
int2 l = p.first, r = p.second;
if (r - l >= num - 1) {
cout << (int) num;
return 0;
}
l %= num;
r %= num;
if (r < l) {
ev.pb({l, 1});
ev.pb({num, -1});
ev.pb({0, 1});
ev.pb({r + 1, -1});
} else {
ev.pb({l, 1});
ev.pb({r + 1, -1});
}
}
sort(ev.begin(), ev.end());
int2 bal = 0;
int2 last = 0;
int ans = 0;
for (auto p : ev) {
for (auto p : ev) {
int2 x = p.first;
int2 type = p.second;
if (bal) {
ans += (x - last);
}
last = x;
bal += type;
}
cout << ans;
}
}
Compilation message
strange_device.cpp: In function 'int main()':
strange_device.cpp:63:15: warning: variable 'p' set but not used [-Wunused-but-set-variable]
for (auto p : ev) {
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Incorrect |
487 ms |
1660 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Incorrect |
10 ms |
512 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 |
Execution timed out |
5059 ms |
81756 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Execution timed out |
5059 ms |
81756 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Execution timed out |
5059 ms |
81756 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Execution timed out |
5054 ms |
10216 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Incorrect |
487 ms |
1660 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |