// CF template, version 3.0
#include <bits/stdc++.h>
using namespace std;
#define improvePerformance ios_base::sync_with_stdio(false); cin.tie(0)
#define getTest int t; cin >> t
#define eachTest for (int _var=0;_var<t;_var++)
#define get(name) int (name); cin >> (name)
#define out(o) cout << (o)
#define getList(cnt, name) vector<int> (name); for (int _=0;_<(cnt);_++) { get(a); (name).push_back(a); }
#define sortl(name) sort((name).begin(), (name).end())
#define rev(name) reverse((name).begin(), (name).end())
#define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
#define decision(b) if (b){out("YES");}else{out("NO");}
#define int long long int
signed main() {
improvePerformance;
//getTest;
//eachTest {
get(n);
get(A);
get(B);
bool toobig = 2e18 / A <= B; // should be good enough, theoretically.
vector<pair<int, int>> events;
forto(n, i) {
get(l);
get(r);
if (!toobig) {
if (r - l + 1 >= A * B) {
out(A * B);
return 0;
}
l %= A * B;
r %= A * B;
}
events.push_back({l, 1});
events.push_back({r, -1});
if (r < l) {
events.push_back({0, 1});
events.push_back({A * B - 1, -1});
}
}
sortl(events);
int ptr = -1;
int i = 0;
int balance = 0;
int m = events.size();
int ans = 0;
while (i <= m) {
if (i == m || (i != 0 && events[i].first != events[i - 1].first && balance == 0)) {
ans += events[i - 1].first - ptr + 1;
ptr = events[i].first;
}
if (i == 0) ptr = events[i].first;
if (i == m) break;
balance += events[i].second;
i++;
}
out(ans);
//}
}
Compilation message
strange_device.cpp: In function 'int main()':
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'n' [-Wparentheses]
10 | #define get(name) int (name); cin >> (name)
| ^
strange_device.cpp:25:9: note: in expansion of macro 'get'
25 | get(n);
| ^~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'A' [-Wparentheses]
10 | #define get(name) int (name); cin >> (name)
| ^
strange_device.cpp:26:9: note: in expansion of macro 'get'
26 | get(A);
| ^~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'B' [-Wparentheses]
10 | #define get(name) int (name); cin >> (name)
| ^
strange_device.cpp:27:9: note: in expansion of macro 'get'
27 | get(B);
| ^~~
strange_device.cpp:15:35: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
15 | #define forto(name, var) for (int (var) = 0; (var) < (name); (var)++)
| ^
strange_device.cpp:30:9: note: in expansion of macro 'forto'
30 | forto(n, i) {
| ^~~~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'l' [-Wparentheses]
10 | #define get(name) int (name); cin >> (name)
| ^
strange_device.cpp:31:13: note: in expansion of macro 'get'
31 | get(l);
| ^~~
strange_device.cpp:10:23: warning: unnecessary parentheses in declaration of 'r' [-Wparentheses]
10 | #define get(name) int (name); cin >> (name)
| ^
strange_device.cpp:32:13: note: in expansion of macro 'get'
32 | get(r);
| ^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
1344 KB |
Output is correct |
3 |
Correct |
5 ms |
1344 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 |
1 ms |
320 KB |
Output is correct |
2 |
Correct |
1 ms |
320 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
256 ms |
33244 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
316 KB |
Output is correct |
2 |
Correct |
383 ms |
33216 KB |
Output is correct |
3 |
Incorrect |
421 ms |
33304 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
316 KB |
Output is correct |
2 |
Correct |
383 ms |
33216 KB |
Output is correct |
3 |
Incorrect |
421 ms |
33304 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
316 KB |
Output is correct |
2 |
Correct |
383 ms |
33216 KB |
Output is correct |
3 |
Incorrect |
421 ms |
33304 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 |
42 ms |
5124 KB |
Output is correct |
3 |
Correct |
47 ms |
5224 KB |
Output is correct |
4 |
Correct |
564 ms |
33424 KB |
Output is correct |
5 |
Correct |
44 ms |
5108 KB |
Output is correct |
6 |
Correct |
47 ms |
5100 KB |
Output is correct |
7 |
Correct |
46 ms |
5120 KB |
Output is correct |
8 |
Correct |
44 ms |
5108 KB |
Output is correct |
9 |
Correct |
41 ms |
5152 KB |
Output is correct |
10 |
Correct |
46 ms |
5188 KB |
Output is correct |
11 |
Correct |
49 ms |
5164 KB |
Output is correct |
12 |
Correct |
36 ms |
5200 KB |
Output is correct |
13 |
Correct |
42 ms |
5188 KB |
Output is correct |
14 |
Correct |
443 ms |
33472 KB |
Output is correct |
15 |
Incorrect |
49 ms |
5080 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
5 ms |
1344 KB |
Output is correct |
3 |
Correct |
5 ms |
1344 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |