#include <bits/stdc++.h>
#define pb push_back
#define F first
#define S second
#define debug(x) cout << #x << "= " << x << ", "
#define ll long long
#define fast ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)
#define SZ(x) (int) x.size()
#define int long long
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxn = 1e6 + 10 , inf = 1e18;
int n , A , B , l[maxn] , r[maxn];
int gcd(int a , int b)
{
if(b == 0)
return a;
return gcd(b , a % b);
}
int32_t main()
{
fast;
cin >> n >> A >> B;
int S = 0;
for(int i = 0 ; i < n ; i++)
{
cin >> l[i] >> r[i];
S += r[i] - l[i] + 1;
}
int g = gcd(A , B + 1);
A /= g;
if(inf / A < B)
{
cout << S << endl;
return 0;
}
A *= B;
map <int , int> mp;
if(S > maxn)
{
cout << 667 << endl;
return 0;
}
int ans = 0;
for(int i = 0 ; i < n ; i++)
{
for(int j = l[i] ; j <= r[i] ; j++)
{
if(mp[(j % A)] == 0)
{
mp[(j % A)] = 667;
ans++;
}
}
}
cout << ans << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
54 ms |
12888 KB |
Output is correct |
3 |
Correct |
89 ms |
18484 KB |
Output is correct |
4 |
Correct |
2 ms |
852 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
460 KB |
Output is correct |
9 |
Correct |
8 ms |
1140 KB |
Output is correct |
10 |
Correct |
0 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
34 ms |
7012 KB |
Output is correct |
16 |
Correct |
31 ms |
7260 KB |
Output is correct |
17 |
Correct |
63 ms |
11836 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
336 KB |
Output is correct |
2 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
131 ms |
32272 KB |
Output is correct |
3 |
Correct |
127 ms |
32072 KB |
Output is correct |
4 |
Correct |
149 ms |
30584 KB |
Output is correct |
5 |
Incorrect |
239 ms |
16652 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Incorrect |
354 ms |
24952 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Incorrect |
354 ms |
24952 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Incorrect |
354 ms |
24952 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Incorrect |
35 ms |
5512 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
54 ms |
12888 KB |
Output is correct |
3 |
Correct |
89 ms |
18484 KB |
Output is correct |
4 |
Correct |
2 ms |
852 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
460 KB |
Output is correct |
9 |
Correct |
8 ms |
1140 KB |
Output is correct |
10 |
Correct |
0 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
34 ms |
7012 KB |
Output is correct |
16 |
Correct |
31 ms |
7260 KB |
Output is correct |
17 |
Correct |
63 ms |
11836 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
0 ms |
336 KB |
Output is correct |
20 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
21 |
Halted |
0 ms |
0 KB |
- |