#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define debug(x) cout << "Line " << __LINE__ << ", " << #x << " is " << x << endl
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define ll long long
#define pll pair<ll, ll>
#define ull unsigned long long
#define ld long double
#define pii pair<ll, ll>
#define nl '\n'
#define tb '\t'
#define sp ' '
using namespace std;
const ll MX=1000001, MOD=998244353, BLOCK=330, INF=1e9+7, INFF=2e18;
const ld ERR=1e-7, pi=3.14159265358979323846;
ll N, A, B, cyc, last=0;
vector<pll> L;
int main(){
fastio;
cin >> N >> A >> B;
cyc=(INFF+A-1)/A;
if(B>=cyc)
cyc=INFF;
else
cyc=A*B;
if((A==2 && B&1) || (A%2==0 && B==1))
cyc/=2;
for(ll i=0, x, y; i<N; i++){
cin >> x >> y;
if(y-x+1>=cyc){
L.pb({0, cyc-1});
}else{
x%=cyc;
y%=cyc;
if(x<=y)
L.pb({x, y});
else{
L.pb({0, y});
L.pb({x, cyc-1});
}
}
}
N=L.size();
sort(L.begin(), L.end());
ll ans=0;
for(auto i:L){
ll x=i.fi, y=i.se;
if(y<last)
continue;
x=max(last, x);
ans+=y-x+1;
last=max(last, y+1);
}
cout << ans << nl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
4 ms |
1044 KB |
Output is correct |
3 |
Correct |
5 ms |
976 KB |
Output is correct |
4 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
296 ms |
41272 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
380 ms |
18504 KB |
Output is correct |
3 |
Correct |
382 ms |
53404 KB |
Output is correct |
4 |
Correct |
370 ms |
53136 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
380 ms |
18504 KB |
Output is correct |
3 |
Correct |
382 ms |
53404 KB |
Output is correct |
4 |
Correct |
370 ms |
53136 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
398 ms |
53348 KB |
Output is correct |
7 |
Correct |
388 ms |
53136 KB |
Output is correct |
8 |
Incorrect |
405 ms |
53204 KB |
Output isn't correct |
9 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
380 ms |
18504 KB |
Output is correct |
3 |
Correct |
382 ms |
53404 KB |
Output is correct |
4 |
Correct |
370 ms |
53136 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
39 ms |
5680 KB |
Output is correct |
7 |
Correct |
40 ms |
5668 KB |
Output is correct |
8 |
Correct |
40 ms |
5688 KB |
Output is correct |
9 |
Correct |
44 ms |
5676 KB |
Output is correct |
10 |
Correct |
38 ms |
5692 KB |
Output is correct |
11 |
Correct |
39 ms |
5684 KB |
Output is correct |
12 |
Correct |
42 ms |
5704 KB |
Output is correct |
13 |
Correct |
43 ms |
5656 KB |
Output is correct |
14 |
Correct |
38 ms |
5680 KB |
Output is correct |
15 |
Correct |
42 ms |
5684 KB |
Output is correct |
16 |
Correct |
40 ms |
5692 KB |
Output is correct |
17 |
Correct |
41 ms |
5680 KB |
Output is correct |
18 |
Correct |
388 ms |
53168 KB |
Output is correct |
19 |
Correct |
392 ms |
53192 KB |
Output is correct |
20 |
Correct |
436 ms |
53200 KB |
Output is correct |
21 |
Correct |
41 ms |
5668 KB |
Output is correct |
22 |
Correct |
36 ms |
5660 KB |
Output is correct |
23 |
Correct |
132 ms |
18496 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
312 KB |
Output is correct |
2 |
Correct |
45 ms |
5696 KB |
Output is correct |
3 |
Correct |
46 ms |
5620 KB |
Output is correct |
4 |
Correct |
455 ms |
53176 KB |
Output is correct |
5 |
Correct |
41 ms |
5708 KB |
Output is correct |
6 |
Correct |
45 ms |
5696 KB |
Output is correct |
7 |
Correct |
42 ms |
5712 KB |
Output is correct |
8 |
Correct |
42 ms |
5692 KB |
Output is correct |
9 |
Correct |
40 ms |
5680 KB |
Output is correct |
10 |
Correct |
41 ms |
5612 KB |
Output is correct |
11 |
Correct |
48 ms |
5636 KB |
Output is correct |
12 |
Correct |
41 ms |
5736 KB |
Output is correct |
13 |
Correct |
46 ms |
5592 KB |
Output is correct |
14 |
Correct |
421 ms |
53072 KB |
Output is correct |
15 |
Incorrect |
45 ms |
5700 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
4 ms |
1044 KB |
Output is correct |
3 |
Correct |
5 ms |
976 KB |
Output is correct |
4 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |