#include <bits/stdc++.h>
#define int long long
using namespace std;
set<int> s;
vector<pair<int,int>> v;
int g(int a,int b){
if(b==0) return a;
return g(b,a%b);
}
int st[1000010],ed[1000010];
signed main()
{
ios::sync_with_stdio(0),cin.tie(0);
int n,a,b;
int sum=0;
cin>>n>>a>>b;
int dmod = g(max(a,b+1),min(a,b+1));
for(int i=1;i<=n;i++){
cin>>st[i]>>ed[i];
sum+=ed[i]-st[i]+1;
}
if((double)(ed[n]/(a/dmod))<=(double)b){
cout<<sum;
return 0;
}
int mod=a/dmod*b;
//cout<<mod<<' ';
for(int i=1;i<=n;i++){
int x=st[i];
int y=ed[i];
if(y-x>mod){
cout<<mod;
return 0;
}
x%=mod;
y%=mod;
if(y>=x){
v.push_back({x,y});
}
else v.push_back({x,mod-1}),v.push_back({0,y});
}
sort(v.begin(),v.end());
int rr=-1,ans=0;
for(int i=0;i<v.size();i++){
int l=v[i].first;
int r=v[i].second;
if(l>rr){
ans+=(r-l+1);
rr=r;
}
else if(l<=rr&&r>rr){
ans+=(r-rr);
rr=r;
}
}
cout<<ans;
return 0;
}
Compilation message
strange_device.cpp: In function 'int main()':
strange_device.cpp:44:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
44 | for(int i=0;i<v.size();i++){
| ~^~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
5 ms |
852 KB |
Output is correct |
3 |
Correct |
5 ms |
1236 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
336 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
5 ms |
1236 KB |
Output is correct |
17 |
Correct |
45 ms |
7792 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
380 KB |
Output is correct |
5 |
Correct |
306 ms |
34540 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
454 ms |
32532 KB |
Output is correct |
3 |
Correct |
414 ms |
34724 KB |
Output is correct |
4 |
Correct |
486 ms |
37196 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
454 ms |
32532 KB |
Output is correct |
3 |
Correct |
414 ms |
34724 KB |
Output is correct |
4 |
Correct |
486 ms |
37196 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
416 ms |
37388 KB |
Output is correct |
7 |
Correct |
568 ms |
37700 KB |
Output is correct |
8 |
Correct |
433 ms |
37260 KB |
Output is correct |
9 |
Correct |
461 ms |
37724 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
454 ms |
32532 KB |
Output is correct |
3 |
Correct |
414 ms |
34724 KB |
Output is correct |
4 |
Correct |
486 ms |
37196 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
50 ms |
7716 KB |
Output is correct |
7 |
Correct |
43 ms |
7684 KB |
Output is correct |
8 |
Correct |
43 ms |
7764 KB |
Output is correct |
9 |
Correct |
43 ms |
7772 KB |
Output is correct |
10 |
Correct |
42 ms |
7752 KB |
Output is correct |
11 |
Correct |
42 ms |
7688 KB |
Output is correct |
12 |
Correct |
44 ms |
7756 KB |
Output is correct |
13 |
Correct |
52 ms |
7872 KB |
Output is correct |
14 |
Correct |
46 ms |
7684 KB |
Output is correct |
15 |
Correct |
54 ms |
7684 KB |
Output is correct |
16 |
Correct |
50 ms |
7792 KB |
Output is correct |
17 |
Correct |
41 ms |
7760 KB |
Output is correct |
18 |
Correct |
438 ms |
36984 KB |
Output is correct |
19 |
Correct |
426 ms |
37308 KB |
Output is correct |
20 |
Correct |
468 ms |
37228 KB |
Output is correct |
21 |
Correct |
44 ms |
7700 KB |
Output is correct |
22 |
Correct |
42 ms |
7792 KB |
Output is correct |
23 |
Correct |
147 ms |
18252 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
43 ms |
4040 KB |
Output is correct |
3 |
Correct |
45 ms |
7740 KB |
Output is correct |
4 |
Correct |
487 ms |
37060 KB |
Output is correct |
5 |
Correct |
48 ms |
7712 KB |
Output is correct |
6 |
Correct |
45 ms |
7772 KB |
Output is correct |
7 |
Correct |
46 ms |
7744 KB |
Output is correct |
8 |
Correct |
48 ms |
7716 KB |
Output is correct |
9 |
Correct |
45 ms |
7752 KB |
Output is correct |
10 |
Correct |
45 ms |
7720 KB |
Output is correct |
11 |
Correct |
47 ms |
7764 KB |
Output is correct |
12 |
Correct |
42 ms |
7784 KB |
Output is correct |
13 |
Correct |
45 ms |
7728 KB |
Output is correct |
14 |
Correct |
476 ms |
36984 KB |
Output is correct |
15 |
Correct |
45 ms |
7736 KB |
Output is correct |
16 |
Correct |
425 ms |
36852 KB |
Output is correct |
17 |
Correct |
417 ms |
37056 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
5 ms |
852 KB |
Output is correct |
3 |
Correct |
5 ms |
1236 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
336 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
5 ms |
1236 KB |
Output is correct |
17 |
Correct |
45 ms |
7792 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
380 KB |
Output is correct |
28 |
Correct |
306 ms |
34540 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
454 ms |
32532 KB |
Output is correct |
31 |
Correct |
414 ms |
34724 KB |
Output is correct |
32 |
Correct |
486 ms |
37196 KB |
Output is correct |
33 |
Correct |
0 ms |
340 KB |
Output is correct |
34 |
Correct |
416 ms |
37388 KB |
Output is correct |
35 |
Correct |
568 ms |
37700 KB |
Output is correct |
36 |
Correct |
433 ms |
37260 KB |
Output is correct |
37 |
Correct |
461 ms |
37724 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
50 ms |
7716 KB |
Output is correct |
40 |
Correct |
43 ms |
7684 KB |
Output is correct |
41 |
Correct |
43 ms |
7764 KB |
Output is correct |
42 |
Correct |
43 ms |
7772 KB |
Output is correct |
43 |
Correct |
42 ms |
7752 KB |
Output is correct |
44 |
Correct |
42 ms |
7688 KB |
Output is correct |
45 |
Correct |
44 ms |
7756 KB |
Output is correct |
46 |
Correct |
52 ms |
7872 KB |
Output is correct |
47 |
Correct |
46 ms |
7684 KB |
Output is correct |
48 |
Correct |
54 ms |
7684 KB |
Output is correct |
49 |
Correct |
50 ms |
7792 KB |
Output is correct |
50 |
Correct |
41 ms |
7760 KB |
Output is correct |
51 |
Correct |
438 ms |
36984 KB |
Output is correct |
52 |
Correct |
426 ms |
37308 KB |
Output is correct |
53 |
Correct |
468 ms |
37228 KB |
Output is correct |
54 |
Correct |
44 ms |
7700 KB |
Output is correct |
55 |
Correct |
42 ms |
7792 KB |
Output is correct |
56 |
Correct |
147 ms |
18252 KB |
Output is correct |
57 |
Correct |
0 ms |
212 KB |
Output is correct |
58 |
Correct |
43 ms |
4040 KB |
Output is correct |
59 |
Correct |
45 ms |
7740 KB |
Output is correct |
60 |
Correct |
487 ms |
37060 KB |
Output is correct |
61 |
Correct |
48 ms |
7712 KB |
Output is correct |
62 |
Correct |
45 ms |
7772 KB |
Output is correct |
63 |
Correct |
46 ms |
7744 KB |
Output is correct |
64 |
Correct |
48 ms |
7716 KB |
Output is correct |
65 |
Correct |
45 ms |
7752 KB |
Output is correct |
66 |
Correct |
45 ms |
7720 KB |
Output is correct |
67 |
Correct |
47 ms |
7764 KB |
Output is correct |
68 |
Correct |
42 ms |
7784 KB |
Output is correct |
69 |
Correct |
45 ms |
7728 KB |
Output is correct |
70 |
Correct |
476 ms |
36984 KB |
Output is correct |
71 |
Correct |
45 ms |
7736 KB |
Output is correct |
72 |
Correct |
425 ms |
36852 KB |
Output is correct |
73 |
Correct |
417 ms |
37056 KB |
Output is correct |
74 |
Correct |
1 ms |
340 KB |
Output is correct |
75 |
Correct |
1 ms |
212 KB |
Output is correct |
76 |
Correct |
1 ms |
340 KB |
Output is correct |
77 |
Correct |
1 ms |
340 KB |
Output is correct |
78 |
Correct |
1 ms |
212 KB |
Output is correct |
79 |
Correct |
5 ms |
1256 KB |
Output is correct |
80 |
Correct |
494 ms |
37672 KB |
Output is correct |
81 |
Correct |
487 ms |
37288 KB |
Output is correct |
82 |
Correct |
479 ms |
37328 KB |
Output is correct |
83 |
Correct |
452 ms |
37168 KB |
Output is correct |
84 |
Correct |
452 ms |
37164 KB |
Output is correct |
85 |
Correct |
445 ms |
37172 KB |
Output is correct |
86 |
Correct |
142 ms |
18540 KB |
Output is correct |
87 |
Correct |
1 ms |
340 KB |
Output is correct |