#include <algorithm>
#include <iostream>
#include <iomanip>
#include <numeric>
#include <cassert>
#include <bitset>
#include <vector>
#include <cmath>
#include <queue>
#include <stack>
#include <set>
#include <map>
#define syosu(x) fixed<<setprecision(x)
using namespace std;
typedef long long ll;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef pair<double,double> pdd;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<string> vs;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<pll> vpll;
typedef pair<P,int> pip;
typedef vector<pip> vip;
const int inf=1<<30;
const ll INF=1ll<<60;
const double pi=acos(-1);
const double eps=1e-8;
const ll mod=1e9+7;
const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1};
ll gcd(ll a,ll b){
if(!b) return a;
return gcd(b,a%b);
}
typedef __int128 b128;
int n;
ll A,B,res=0;
int main(){
scanf("%d%lld%lld",&n,&A,&B);
b128 m=A/gcd(A,B+1)*b128(B);
vector<pair<ll,int>> a;
for(int i=0;i<n;i++){
ll l,r;
scanf("%lld%lld",&l,&r);
if(r-l+1>=m){
cout<<(ll)m<<endl;
return 0;
}
l%=m,r%=m;
r++;
a.push_back({l,1});
a.push_back({r,-1});
if(l>r){
a.push_back(make_pair(0LL,1));
a.push_back(make_pair((ll)m,-1));
}
}
sort(a.begin(),a.end());
ll N=a.size(),x=0,s=0;
for(int i=0;i<N;i++){
ll y=a[i].first,t=a[i].second;
if(s) res+=y-x;
x=y,s+=t;
}
printf("%lld\n",res);
}
Compilation message
strange_device.cpp: In function 'int main()':
strange_device.cpp:51:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
51 | scanf("%d%lld%lld",&n,&A,&B);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:56:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
56 | scanf("%lld%lld",&l,&r);
| ~~~~~^~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
7 ms |
1404 KB |
Output is correct |
3 |
Correct |
7 ms |
1404 KB |
Output is correct |
4 |
Correct |
1 ms |
256 KB |
Output is correct |
5 |
Correct |
1 ms |
256 KB |
Output is correct |
6 |
Correct |
1 ms |
256 KB |
Output is correct |
7 |
Correct |
1 ms |
256 KB |
Output is correct |
8 |
Correct |
1 ms |
256 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
256 KB |
Output is correct |
11 |
Correct |
0 ms |
256 KB |
Output is correct |
12 |
Correct |
0 ms |
256 KB |
Output is correct |
13 |
Correct |
1 ms |
256 KB |
Output is correct |
14 |
Correct |
0 ms |
256 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
7 ms |
1276 KB |
Output is correct |
17 |
Correct |
71 ms |
7272 KB |
Output is correct |
18 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
1 ms |
416 KB |
Output is correct |
3 |
Correct |
1 ms |
256 KB |
Output is correct |
4 |
Correct |
1 ms |
256 KB |
Output is correct |
5 |
Correct |
0 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
477 ms |
57004 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
639 ms |
69016 KB |
Output is correct |
3 |
Correct |
662 ms |
68980 KB |
Output is correct |
4 |
Correct |
644 ms |
69144 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
639 ms |
69016 KB |
Output is correct |
3 |
Correct |
662 ms |
68980 KB |
Output is correct |
4 |
Correct |
644 ms |
69144 KB |
Output is correct |
5 |
Correct |
0 ms |
256 KB |
Output is correct |
6 |
Correct |
647 ms |
69108 KB |
Output is correct |
7 |
Correct |
660 ms |
69088 KB |
Output is correct |
8 |
Correct |
634 ms |
69016 KB |
Output is correct |
9 |
Correct |
761 ms |
69064 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
256 KB |
Output is correct |
2 |
Correct |
639 ms |
69016 KB |
Output is correct |
3 |
Correct |
662 ms |
68980 KB |
Output is correct |
4 |
Correct |
644 ms |
69144 KB |
Output is correct |
5 |
Correct |
1 ms |
256 KB |
Output is correct |
6 |
Correct |
62 ms |
7384 KB |
Output is correct |
7 |
Correct |
66 ms |
7436 KB |
Output is correct |
8 |
Correct |
60 ms |
7280 KB |
Output is correct |
9 |
Correct |
70 ms |
7392 KB |
Output is correct |
10 |
Correct |
61 ms |
7272 KB |
Output is correct |
11 |
Correct |
66 ms |
7272 KB |
Output is correct |
12 |
Correct |
60 ms |
7272 KB |
Output is correct |
13 |
Correct |
69 ms |
7268 KB |
Output is correct |
14 |
Correct |
62 ms |
7272 KB |
Output is correct |
15 |
Correct |
73 ms |
7268 KB |
Output is correct |
16 |
Correct |
73 ms |
7300 KB |
Output is correct |
17 |
Correct |
62 ms |
7268 KB |
Output is correct |
18 |
Correct |
682 ms |
69072 KB |
Output is correct |
19 |
Correct |
617 ms |
69016 KB |
Output is correct |
20 |
Correct |
778 ms |
69016 KB |
Output is correct |
21 |
Correct |
71 ms |
7280 KB |
Output is correct |
22 |
Correct |
56 ms |
7272 KB |
Output is correct |
23 |
Correct |
222 ms |
26704 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
256 KB |
Output is correct |
2 |
Correct |
69 ms |
7352 KB |
Output is correct |
3 |
Correct |
69 ms |
7272 KB |
Output is correct |
4 |
Correct |
799 ms |
69016 KB |
Output is correct |
5 |
Correct |
67 ms |
7268 KB |
Output is correct |
6 |
Correct |
66 ms |
7280 KB |
Output is correct |
7 |
Correct |
69 ms |
7392 KB |
Output is correct |
8 |
Correct |
71 ms |
7272 KB |
Output is correct |
9 |
Correct |
66 ms |
7392 KB |
Output is correct |
10 |
Correct |
71 ms |
7400 KB |
Output is correct |
11 |
Correct |
68 ms |
7396 KB |
Output is correct |
12 |
Correct |
62 ms |
7392 KB |
Output is correct |
13 |
Correct |
71 ms |
7272 KB |
Output is correct |
14 |
Correct |
759 ms |
68932 KB |
Output is correct |
15 |
Correct |
73 ms |
7272 KB |
Output is correct |
16 |
Correct |
633 ms |
69044 KB |
Output is correct |
17 |
Correct |
648 ms |
69148 KB |
Output is correct |
18 |
Correct |
1 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
384 KB |
Output is correct |
2 |
Correct |
7 ms |
1404 KB |
Output is correct |
3 |
Correct |
7 ms |
1404 KB |
Output is correct |
4 |
Correct |
1 ms |
256 KB |
Output is correct |
5 |
Correct |
1 ms |
256 KB |
Output is correct |
6 |
Correct |
1 ms |
256 KB |
Output is correct |
7 |
Correct |
1 ms |
256 KB |
Output is correct |
8 |
Correct |
1 ms |
256 KB |
Output is correct |
9 |
Correct |
1 ms |
256 KB |
Output is correct |
10 |
Correct |
1 ms |
256 KB |
Output is correct |
11 |
Correct |
0 ms |
256 KB |
Output is correct |
12 |
Correct |
0 ms |
256 KB |
Output is correct |
13 |
Correct |
1 ms |
256 KB |
Output is correct |
14 |
Correct |
0 ms |
256 KB |
Output is correct |
15 |
Correct |
1 ms |
256 KB |
Output is correct |
16 |
Correct |
7 ms |
1276 KB |
Output is correct |
17 |
Correct |
71 ms |
7272 KB |
Output is correct |
18 |
Correct |
1 ms |
256 KB |
Output is correct |
19 |
Correct |
0 ms |
256 KB |
Output is correct |
20 |
Correct |
1 ms |
416 KB |
Output is correct |
21 |
Correct |
1 ms |
256 KB |
Output is correct |
22 |
Correct |
1 ms |
256 KB |
Output is correct |
23 |
Correct |
0 ms |
256 KB |
Output is correct |
24 |
Correct |
0 ms |
256 KB |
Output is correct |
25 |
Correct |
2 ms |
384 KB |
Output is correct |
26 |
Correct |
1 ms |
384 KB |
Output is correct |
27 |
Correct |
1 ms |
384 KB |
Output is correct |
28 |
Correct |
477 ms |
57004 KB |
Output is correct |
29 |
Correct |
1 ms |
256 KB |
Output is correct |
30 |
Correct |
639 ms |
69016 KB |
Output is correct |
31 |
Correct |
662 ms |
68980 KB |
Output is correct |
32 |
Correct |
644 ms |
69144 KB |
Output is correct |
33 |
Correct |
0 ms |
256 KB |
Output is correct |
34 |
Correct |
647 ms |
69108 KB |
Output is correct |
35 |
Correct |
660 ms |
69088 KB |
Output is correct |
36 |
Correct |
634 ms |
69016 KB |
Output is correct |
37 |
Correct |
761 ms |
69064 KB |
Output is correct |
38 |
Correct |
1 ms |
256 KB |
Output is correct |
39 |
Correct |
62 ms |
7384 KB |
Output is correct |
40 |
Correct |
66 ms |
7436 KB |
Output is correct |
41 |
Correct |
60 ms |
7280 KB |
Output is correct |
42 |
Correct |
70 ms |
7392 KB |
Output is correct |
43 |
Correct |
61 ms |
7272 KB |
Output is correct |
44 |
Correct |
66 ms |
7272 KB |
Output is correct |
45 |
Correct |
60 ms |
7272 KB |
Output is correct |
46 |
Correct |
69 ms |
7268 KB |
Output is correct |
47 |
Correct |
62 ms |
7272 KB |
Output is correct |
48 |
Correct |
73 ms |
7268 KB |
Output is correct |
49 |
Correct |
73 ms |
7300 KB |
Output is correct |
50 |
Correct |
62 ms |
7268 KB |
Output is correct |
51 |
Correct |
682 ms |
69072 KB |
Output is correct |
52 |
Correct |
617 ms |
69016 KB |
Output is correct |
53 |
Correct |
778 ms |
69016 KB |
Output is correct |
54 |
Correct |
71 ms |
7280 KB |
Output is correct |
55 |
Correct |
56 ms |
7272 KB |
Output is correct |
56 |
Correct |
222 ms |
26704 KB |
Output is correct |
57 |
Correct |
0 ms |
256 KB |
Output is correct |
58 |
Correct |
69 ms |
7352 KB |
Output is correct |
59 |
Correct |
69 ms |
7272 KB |
Output is correct |
60 |
Correct |
799 ms |
69016 KB |
Output is correct |
61 |
Correct |
67 ms |
7268 KB |
Output is correct |
62 |
Correct |
66 ms |
7280 KB |
Output is correct |
63 |
Correct |
69 ms |
7392 KB |
Output is correct |
64 |
Correct |
71 ms |
7272 KB |
Output is correct |
65 |
Correct |
66 ms |
7392 KB |
Output is correct |
66 |
Correct |
71 ms |
7400 KB |
Output is correct |
67 |
Correct |
68 ms |
7396 KB |
Output is correct |
68 |
Correct |
62 ms |
7392 KB |
Output is correct |
69 |
Correct |
71 ms |
7272 KB |
Output is correct |
70 |
Correct |
759 ms |
68932 KB |
Output is correct |
71 |
Correct |
73 ms |
7272 KB |
Output is correct |
72 |
Correct |
633 ms |
69044 KB |
Output is correct |
73 |
Correct |
648 ms |
69148 KB |
Output is correct |
74 |
Correct |
1 ms |
256 KB |
Output is correct |
75 |
Correct |
1 ms |
256 KB |
Output is correct |
76 |
Correct |
1 ms |
384 KB |
Output is correct |
77 |
Correct |
1 ms |
384 KB |
Output is correct |
78 |
Correct |
0 ms |
384 KB |
Output is correct |
79 |
Correct |
6 ms |
1276 KB |
Output is correct |
80 |
Correct |
790 ms |
68888 KB |
Output is correct |
81 |
Correct |
783 ms |
68836 KB |
Output is correct |
82 |
Correct |
736 ms |
68920 KB |
Output is correct |
83 |
Correct |
742 ms |
68888 KB |
Output is correct |
84 |
Correct |
740 ms |
69016 KB |
Output is correct |
85 |
Correct |
745 ms |
69028 KB |
Output is correct |
86 |
Correct |
218 ms |
26704 KB |
Output is correct |
87 |
Correct |
1 ms |
256 KB |
Output is correct |