#include <iostream>
#include <set>
#include <fstream>
using namespace std;
const long long lim=(long long)(1LL*1e18)+1;
long long n,i,j,l,r,A,B,L,R;
long long ans;
bool brk;
struct pct
{
long long x,y;
}nl;
bool operator <(pct unu,pct doi)
{
if(unu.x==doi.x) return unu.y<doi.y;
return unu.x<doi.x;
}
bool operator !=(pct unu,pct doi)
{
return (unu.x!=doi.x||unu.y!=doi.y);
}
set <pct> s;
set <pct>::iterator it,it1;
long long gcd(long long x,long long y)
{
if((!x)||(!y)) return (x+y);
return gcd(y,x%y);
}
void baga(long long st,long long dr)
{
it=s.lower_bound({st,0});
while(it!=s.end()&&(*it).x<=dr)
{
dr=max(dr,(*it).y);
it1=it;it1++;s.erase(it);
it=it1;
}
it=s.lower_bound({st,0});
if(it!=s.begin())
{
it--;
if((*it).y>=st)
{
st=min(st,(*it).x);
dr=max(dr,(*it).y);
s.erase(it);
}
}
s.insert({st,dr});
}
int main()
{
//freopen("data.in","r",stdin);
ios_base::sync_with_stdio(false);
cin>>n>>A>>B;
long long t=gcd(A,B+1);
A/=t;
long long per;
if(lim/A<=B) per=1LL*lim;
else per=1LL*A*B;
for(i=1;i<=n;i++)
{
cin>>l>>r;
if(l/per==r/per)
{
baga(l%per,r%per);
}
else
{
if(l/per+1<r/per)
baga(0,per-1);
baga(l%per,per-1);
baga(0,r%per);
}
}
for(it=s.begin();it!=s.end();it++)
ans+=1LL*((*it).y-(*it).x+1);
cout<<ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
11 ms |
888 KB |
Output is correct |
3 |
Correct |
12 ms |
1272 KB |
Output is correct |
4 |
Correct |
3 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
256 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
256 KB |
Output is correct |
14 |
Correct |
2 ms |
256 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
12 ms |
1272 KB |
Output is correct |
17 |
Correct |
122 ms |
7596 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
0 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
256 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
376 KB |
Output is correct |
3 |
Correct |
3 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
376 KB |
Output is correct |
5 |
Correct |
476 ms |
1784 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
1284 ms |
62936 KB |
Output is correct |
3 |
Correct |
1339 ms |
62984 KB |
Output is correct |
4 |
Correct |
1469 ms |
63208 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
1284 ms |
62936 KB |
Output is correct |
3 |
Correct |
1339 ms |
62984 KB |
Output is correct |
4 |
Correct |
1469 ms |
63208 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
1350 ms |
63104 KB |
Output is correct |
7 |
Correct |
1348 ms |
63120 KB |
Output is correct |
8 |
Correct |
1363 ms |
62988 KB |
Output is correct |
9 |
Correct |
1540 ms |
63004 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
1284 ms |
62936 KB |
Output is correct |
3 |
Correct |
1339 ms |
62984 KB |
Output is correct |
4 |
Correct |
1469 ms |
63208 KB |
Output is correct |
5 |
Correct |
2 ms |
256 KB |
Output is correct |
6 |
Correct |
118 ms |
6640 KB |
Output is correct |
7 |
Correct |
110 ms |
6868 KB |
Output is correct |
8 |
Correct |
112 ms |
6864 KB |
Output is correct |
9 |
Correct |
129 ms |
6804 KB |
Output is correct |
10 |
Correct |
111 ms |
6776 KB |
Output is correct |
11 |
Correct |
111 ms |
6752 KB |
Output is correct |
12 |
Correct |
114 ms |
6888 KB |
Output is correct |
13 |
Correct |
126 ms |
6812 KB |
Output is correct |
14 |
Correct |
107 ms |
6748 KB |
Output is correct |
15 |
Correct |
133 ms |
6780 KB |
Output is correct |
16 |
Correct |
126 ms |
6656 KB |
Output is correct |
17 |
Correct |
121 ms |
7860 KB |
Output is correct |
18 |
Correct |
1273 ms |
64256 KB |
Output is correct |
19 |
Correct |
1366 ms |
64356 KB |
Output is correct |
20 |
Correct |
1429 ms |
64592 KB |
Output is correct |
21 |
Correct |
111 ms |
7928 KB |
Output is correct |
22 |
Correct |
125 ms |
8084 KB |
Output is correct |
23 |
Correct |
200 ms |
1784 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
131 ms |
7252 KB |
Output is correct |
3 |
Correct |
128 ms |
7276 KB |
Output is correct |
4 |
Correct |
1412 ms |
63504 KB |
Output is correct |
5 |
Correct |
129 ms |
6896 KB |
Output is correct |
6 |
Correct |
130 ms |
6844 KB |
Output is correct |
7 |
Correct |
131 ms |
7208 KB |
Output is correct |
8 |
Correct |
128 ms |
7176 KB |
Output is correct |
9 |
Correct |
126 ms |
7180 KB |
Output is correct |
10 |
Correct |
111 ms |
7156 KB |
Output is correct |
11 |
Correct |
115 ms |
7228 KB |
Output is correct |
12 |
Correct |
117 ms |
7288 KB |
Output is correct |
13 |
Correct |
127 ms |
7160 KB |
Output is correct |
14 |
Correct |
1515 ms |
63988 KB |
Output is correct |
15 |
Correct |
104 ms |
6404 KB |
Output is correct |
16 |
Correct |
1255 ms |
64668 KB |
Output is correct |
17 |
Correct |
1265 ms |
64708 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
11 ms |
888 KB |
Output is correct |
3 |
Correct |
12 ms |
1272 KB |
Output is correct |
4 |
Correct |
3 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
256 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
256 KB |
Output is correct |
14 |
Correct |
2 ms |
256 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
12 ms |
1272 KB |
Output is correct |
17 |
Correct |
122 ms |
7596 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
2 ms |
376 KB |
Output is correct |
20 |
Correct |
0 ms |
376 KB |
Output is correct |
21 |
Correct |
2 ms |
376 KB |
Output is correct |
22 |
Correct |
2 ms |
256 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
256 KB |
Output is correct |
25 |
Correct |
3 ms |
376 KB |
Output is correct |
26 |
Correct |
3 ms |
376 KB |
Output is correct |
27 |
Correct |
3 ms |
376 KB |
Output is correct |
28 |
Correct |
476 ms |
1784 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
1284 ms |
62936 KB |
Output is correct |
31 |
Correct |
1339 ms |
62984 KB |
Output is correct |
32 |
Correct |
1469 ms |
63208 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
1350 ms |
63104 KB |
Output is correct |
35 |
Correct |
1348 ms |
63120 KB |
Output is correct |
36 |
Correct |
1363 ms |
62988 KB |
Output is correct |
37 |
Correct |
1540 ms |
63004 KB |
Output is correct |
38 |
Correct |
2 ms |
256 KB |
Output is correct |
39 |
Correct |
118 ms |
6640 KB |
Output is correct |
40 |
Correct |
110 ms |
6868 KB |
Output is correct |
41 |
Correct |
112 ms |
6864 KB |
Output is correct |
42 |
Correct |
129 ms |
6804 KB |
Output is correct |
43 |
Correct |
111 ms |
6776 KB |
Output is correct |
44 |
Correct |
111 ms |
6752 KB |
Output is correct |
45 |
Correct |
114 ms |
6888 KB |
Output is correct |
46 |
Correct |
126 ms |
6812 KB |
Output is correct |
47 |
Correct |
107 ms |
6748 KB |
Output is correct |
48 |
Correct |
133 ms |
6780 KB |
Output is correct |
49 |
Correct |
126 ms |
6656 KB |
Output is correct |
50 |
Correct |
121 ms |
7860 KB |
Output is correct |
51 |
Correct |
1273 ms |
64256 KB |
Output is correct |
52 |
Correct |
1366 ms |
64356 KB |
Output is correct |
53 |
Correct |
1429 ms |
64592 KB |
Output is correct |
54 |
Correct |
111 ms |
7928 KB |
Output is correct |
55 |
Correct |
125 ms |
8084 KB |
Output is correct |
56 |
Correct |
200 ms |
1784 KB |
Output is correct |
57 |
Correct |
2 ms |
376 KB |
Output is correct |
58 |
Correct |
131 ms |
7252 KB |
Output is correct |
59 |
Correct |
128 ms |
7276 KB |
Output is correct |
60 |
Correct |
1412 ms |
63504 KB |
Output is correct |
61 |
Correct |
129 ms |
6896 KB |
Output is correct |
62 |
Correct |
130 ms |
6844 KB |
Output is correct |
63 |
Correct |
131 ms |
7208 KB |
Output is correct |
64 |
Correct |
128 ms |
7176 KB |
Output is correct |
65 |
Correct |
126 ms |
7180 KB |
Output is correct |
66 |
Correct |
111 ms |
7156 KB |
Output is correct |
67 |
Correct |
115 ms |
7228 KB |
Output is correct |
68 |
Correct |
117 ms |
7288 KB |
Output is correct |
69 |
Correct |
127 ms |
7160 KB |
Output is correct |
70 |
Correct |
1515 ms |
63988 KB |
Output is correct |
71 |
Correct |
104 ms |
6404 KB |
Output is correct |
72 |
Correct |
1255 ms |
64668 KB |
Output is correct |
73 |
Correct |
1265 ms |
64708 KB |
Output is correct |
74 |
Correct |
2 ms |
376 KB |
Output is correct |
75 |
Correct |
2 ms |
376 KB |
Output is correct |
76 |
Correct |
2 ms |
376 KB |
Output is correct |
77 |
Correct |
2 ms |
376 KB |
Output is correct |
78 |
Correct |
2 ms |
376 KB |
Output is correct |
79 |
Correct |
11 ms |
1272 KB |
Output is correct |
80 |
Correct |
1474 ms |
64632 KB |
Output is correct |
81 |
Correct |
1399 ms |
64692 KB |
Output is correct |
82 |
Correct |
1539 ms |
64784 KB |
Output is correct |
83 |
Correct |
1505 ms |
64720 KB |
Output is correct |
84 |
Correct |
1547 ms |
64660 KB |
Output is correct |
85 |
Correct |
1422 ms |
64636 KB |
Output is correct |
86 |
Correct |
204 ms |
3688 KB |
Output is correct |
87 |
Correct |
3 ms |
376 KB |
Output is correct |