#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define fs first
#define sc second
using namespace std;
typedef pair<ll,ll> LL;
const ll N = 1e6 + 3;
const ll inf = 1e18 + 7;
LL a[N];
ll n,A,B,q,total;
vector<LL> v;
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
#define task "test"
if (fopen(task".INP","r")){
freopen(task".INP","r",stdin);
//freopen(task".OUT","w",stdout);
}
cin>>n>>A>>B; q = A/__gcd(B + 1,A);
if (inf / B < q) total = inf;
else total = q * B; //cout<<total; return 0;
for (ll i = 1;i <= n;i++){
cin>>a[i].fs>>a[i].sc;
if (a[i].sc - a[i].fs + 1 >= total) v.push_back({0,total - 1});
else{
a[i].fs %= total; a[i].sc %= total;
if (a[i].fs <= a[i].sc) v.push_back(a[i]);
else{
v.push_back({0,a[i].sc}); v.push_back({a[i].fs,total - 1});
}
}
}
sort(v.begin(),v.end());
ll mx = -inf,ans = 0;
for (auto i : v){
if (i.sc <= mx) continue;
if (i.fs > mx) ans += i.sc - i.fs + 1;
else ans += max(0ll,i.sc - mx);
mx = max(mx,i.sc);
}
cout<<ans;
}
Compilation message
strange_device.cpp:2: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
2 | #pragma GCC optimization ("O3")
|
strange_device.cpp:3: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
3 | #pragma GCC optimization ("unroll-loops")
|
strange_device.cpp: In function 'int main()':
strange_device.cpp:23:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
23 | freopen(task".INP","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
876 KB |
Output is correct |
3 |
Correct |
5 ms |
876 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
512 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
5 ms |
876 KB |
Output is correct |
17 |
Correct |
51 ms |
3704 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
331 ms |
31804 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
364 KB |
Output is correct |
2 |
Correct |
466 ms |
32056 KB |
Output is correct |
3 |
Correct |
492 ms |
31804 KB |
Output is correct |
4 |
Correct |
456 ms |
31816 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
364 KB |
Output is correct |
2 |
Correct |
466 ms |
32056 KB |
Output is correct |
3 |
Correct |
492 ms |
31804 KB |
Output is correct |
4 |
Correct |
456 ms |
31816 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
473 ms |
31936 KB |
Output is correct |
7 |
Correct |
482 ms |
31804 KB |
Output is correct |
8 |
Correct |
461 ms |
31804 KB |
Output is correct |
9 |
Correct |
537 ms |
32056 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
364 KB |
Output is correct |
2 |
Correct |
466 ms |
32056 KB |
Output is correct |
3 |
Correct |
492 ms |
31804 KB |
Output is correct |
4 |
Correct |
456 ms |
31816 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
46 ms |
3560 KB |
Output is correct |
7 |
Correct |
99 ms |
3684 KB |
Output is correct |
8 |
Correct |
45 ms |
3560 KB |
Output is correct |
9 |
Correct |
46 ms |
3560 KB |
Output is correct |
10 |
Correct |
46 ms |
3560 KB |
Output is correct |
11 |
Correct |
48 ms |
3560 KB |
Output is correct |
12 |
Correct |
45 ms |
3560 KB |
Output is correct |
13 |
Correct |
49 ms |
3560 KB |
Output is correct |
14 |
Correct |
45 ms |
3560 KB |
Output is correct |
15 |
Correct |
52 ms |
3560 KB |
Output is correct |
16 |
Correct |
50 ms |
3560 KB |
Output is correct |
17 |
Correct |
46 ms |
3560 KB |
Output is correct |
18 |
Correct |
469 ms |
31956 KB |
Output is correct |
19 |
Correct |
453 ms |
31804 KB |
Output is correct |
20 |
Correct |
517 ms |
31804 KB |
Output is correct |
21 |
Correct |
74 ms |
3560 KB |
Output is correct |
22 |
Correct |
65 ms |
3560 KB |
Output is correct |
23 |
Correct |
142 ms |
12892 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
59 ms |
3560 KB |
Output is correct |
3 |
Correct |
50 ms |
3560 KB |
Output is correct |
4 |
Correct |
547 ms |
31740 KB |
Output is correct |
5 |
Correct |
49 ms |
3560 KB |
Output is correct |
6 |
Correct |
49 ms |
3560 KB |
Output is correct |
7 |
Correct |
49 ms |
3560 KB |
Output is correct |
8 |
Correct |
50 ms |
3560 KB |
Output is correct |
9 |
Correct |
48 ms |
3560 KB |
Output is correct |
10 |
Correct |
50 ms |
3560 KB |
Output is correct |
11 |
Correct |
78 ms |
3560 KB |
Output is correct |
12 |
Correct |
43 ms |
3560 KB |
Output is correct |
13 |
Correct |
49 ms |
3560 KB |
Output is correct |
14 |
Correct |
535 ms |
31804 KB |
Output is correct |
15 |
Correct |
49 ms |
3560 KB |
Output is correct |
16 |
Correct |
463 ms |
31804 KB |
Output is correct |
17 |
Correct |
462 ms |
31804 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
5 ms |
876 KB |
Output is correct |
3 |
Correct |
5 ms |
876 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
0 ms |
364 KB |
Output is correct |
6 |
Correct |
1 ms |
512 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
1 ms |
364 KB |
Output is correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
5 ms |
876 KB |
Output is correct |
17 |
Correct |
51 ms |
3704 KB |
Output is correct |
18 |
Correct |
1 ms |
364 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
1 ms |
364 KB |
Output is correct |
23 |
Correct |
1 ms |
364 KB |
Output is correct |
24 |
Correct |
0 ms |
364 KB |
Output is correct |
25 |
Correct |
1 ms |
364 KB |
Output is correct |
26 |
Correct |
1 ms |
364 KB |
Output is correct |
27 |
Correct |
1 ms |
364 KB |
Output is correct |
28 |
Correct |
331 ms |
31804 KB |
Output is correct |
29 |
Correct |
2 ms |
364 KB |
Output is correct |
30 |
Correct |
466 ms |
32056 KB |
Output is correct |
31 |
Correct |
492 ms |
31804 KB |
Output is correct |
32 |
Correct |
456 ms |
31816 KB |
Output is correct |
33 |
Correct |
1 ms |
364 KB |
Output is correct |
34 |
Correct |
473 ms |
31936 KB |
Output is correct |
35 |
Correct |
482 ms |
31804 KB |
Output is correct |
36 |
Correct |
461 ms |
31804 KB |
Output is correct |
37 |
Correct |
537 ms |
32056 KB |
Output is correct |
38 |
Correct |
1 ms |
364 KB |
Output is correct |
39 |
Correct |
46 ms |
3560 KB |
Output is correct |
40 |
Correct |
99 ms |
3684 KB |
Output is correct |
41 |
Correct |
45 ms |
3560 KB |
Output is correct |
42 |
Correct |
46 ms |
3560 KB |
Output is correct |
43 |
Correct |
46 ms |
3560 KB |
Output is correct |
44 |
Correct |
48 ms |
3560 KB |
Output is correct |
45 |
Correct |
45 ms |
3560 KB |
Output is correct |
46 |
Correct |
49 ms |
3560 KB |
Output is correct |
47 |
Correct |
45 ms |
3560 KB |
Output is correct |
48 |
Correct |
52 ms |
3560 KB |
Output is correct |
49 |
Correct |
50 ms |
3560 KB |
Output is correct |
50 |
Correct |
46 ms |
3560 KB |
Output is correct |
51 |
Correct |
469 ms |
31956 KB |
Output is correct |
52 |
Correct |
453 ms |
31804 KB |
Output is correct |
53 |
Correct |
517 ms |
31804 KB |
Output is correct |
54 |
Correct |
74 ms |
3560 KB |
Output is correct |
55 |
Correct |
65 ms |
3560 KB |
Output is correct |
56 |
Correct |
142 ms |
12892 KB |
Output is correct |
57 |
Correct |
1 ms |
364 KB |
Output is correct |
58 |
Correct |
59 ms |
3560 KB |
Output is correct |
59 |
Correct |
50 ms |
3560 KB |
Output is correct |
60 |
Correct |
547 ms |
31740 KB |
Output is correct |
61 |
Correct |
49 ms |
3560 KB |
Output is correct |
62 |
Correct |
49 ms |
3560 KB |
Output is correct |
63 |
Correct |
49 ms |
3560 KB |
Output is correct |
64 |
Correct |
50 ms |
3560 KB |
Output is correct |
65 |
Correct |
48 ms |
3560 KB |
Output is correct |
66 |
Correct |
50 ms |
3560 KB |
Output is correct |
67 |
Correct |
78 ms |
3560 KB |
Output is correct |
68 |
Correct |
43 ms |
3560 KB |
Output is correct |
69 |
Correct |
49 ms |
3560 KB |
Output is correct |
70 |
Correct |
535 ms |
31804 KB |
Output is correct |
71 |
Correct |
49 ms |
3560 KB |
Output is correct |
72 |
Correct |
463 ms |
31804 KB |
Output is correct |
73 |
Correct |
462 ms |
31804 KB |
Output is correct |
74 |
Correct |
1 ms |
364 KB |
Output is correct |
75 |
Correct |
1 ms |
364 KB |
Output is correct |
76 |
Correct |
1 ms |
364 KB |
Output is correct |
77 |
Correct |
1 ms |
364 KB |
Output is correct |
78 |
Correct |
1 ms |
364 KB |
Output is correct |
79 |
Correct |
5 ms |
1260 KB |
Output is correct |
80 |
Correct |
549 ms |
69052 KB |
Output is correct |
81 |
Correct |
566 ms |
69308 KB |
Output is correct |
82 |
Correct |
563 ms |
69180 KB |
Output is correct |
83 |
Correct |
541 ms |
69064 KB |
Output is correct |
84 |
Correct |
527 ms |
69212 KB |
Output is correct |
85 |
Correct |
522 ms |
69052 KB |
Output is correct |
86 |
Correct |
145 ms |
23768 KB |
Output is correct |
87 |
Correct |
1 ms |
364 KB |
Output is correct |