Submission #361925

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
361925	2021-02-01T08:15:56 Z	RohamIzadidoost	Strange Device (APIO19_strange_device)	C++14	100 / 100	1083 ms	64236 KB

strange_device

#pragma GCC optimize("Ofast,unroll-loops,fast-math")
#include<bits/stdc++.h>
using namespace std;
typedef long long ll ;
#define pll pair<ll , ll >
#define all(x) (x).begin(),(x).end()
#define SZ(x) (ll)(x).size()
#define X   first
#define Y   second
#define mp  make_pair
#define pii pair<int , int>
#define vec vector
#define file_io freopen("input.txt", "r", stdin);freopen("output.txt", "w", stdout);
#define migmig ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define pb push_back
ll poww(ll a, ll b, ll md) {
    return (!b ? 1 : (b & 1 ? a * poww(a * a % md, b / 2, md) % md : poww(a * a % md, b / 2, md) % md));
}
ll gcd(ll a, ll b) {
   if (b == 0)
      return a;
   return gcd(b, a % b);
}
const int maxn = 1000*1000+5 ;
const ll inf = 4223372036854775807 ;
const ll mod = 1e9 + 7 ;
const int lg = 20 ;
ll n , a  , b  , l , r , L , R , ans , p , w, k ; 
set<pll> s ; 
int main()
{
	migmig ;
	cin>>n>>a>>b ; 
	if(a/gcd(a , b + 1) > inf / b) p = inf ; 
	else p =  a / gcd(a , b + 1) * b ; 
	//cout<<"p : " << p << endl ; 
	while(n--){
		cin>>l>>r ;
		if(k) continue ;
		if(r - l + 1 >= p ){
			k = 1 ;
			ans = p ; 
			continue ; 
		} 
		l = l % p ; 
		r = r % p ; 
	//	cout<<n <<" : " << endl ; 
		if(r >= l){
			s.insert({l , r}) ; 
		//	cout<<l<<","<<r << endl ; 
		}else{
			s.insert({0 , r}) ; 
			s.insert({l , p - 1}) ; 
		//	cout<<0 <<","<<r <<" & " <<l <<","<<p-1 << endl ; 
		}
	} 
	if(k){
		cout<<ans ; 
		return 0; 
	}
	s.insert({inf + 1 , inf  + 1}) ; 
	L = s.begin() -> X , R = s.begin() -> Y ; 
	auto it = next(s.begin()) ;
	while(it != s.end()){
		if(it -> X > R){
			ans += R - L + 1 ; 
			//cout<<" ad " << L <<" , " << R << endl ; 
			L = it -> X , R = it -> Y ; 
		}else{
			R = max(R , it -> Y) ; 
		}
		it++ ; 
	} 
	cout<<ans << endl ; 
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	7 ms	1388 KB	Output is correct
3	Correct	7 ms	1388 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	384 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	7 ms	1388 KB	Output is correct
17	Correct	63 ms	7660 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	293 ms	1388 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	658 ms	63084 KB	Output is correct
3	Correct	705 ms	64008 KB	Output is correct
4	Correct	701 ms	64140 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	658 ms	63084 KB	Output is correct
3	Correct	705 ms	64008 KB	Output is correct
4	Correct	701 ms	64140 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	707 ms	64108 KB	Output is correct
7	Correct	672 ms	64192 KB	Output is correct
8	Correct	675 ms	63960 KB	Output is correct
9	Correct	707 ms	64152 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	658 ms	63084 KB	Output is correct
3	Correct	705 ms	64008 KB	Output is correct
4	Correct	701 ms	64140 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	61 ms	7788 KB	Output is correct
7	Correct	72 ms	7788 KB	Output is correct
8	Correct	65 ms	7660 KB	Output is correct
9	Correct	64 ms	7660 KB	Output is correct
10	Correct	61 ms	7660 KB	Output is correct
11	Correct	62 ms	7660 KB	Output is correct
12	Correct	63 ms	7660 KB	Output is correct
13	Correct	66 ms	7660 KB	Output is correct
14	Correct	62 ms	7672 KB	Output is correct
15	Correct	66 ms	7660 KB	Output is correct
16	Correct	68 ms	7788 KB	Output is correct
17	Correct	63 ms	7660 KB	Output is correct
18	Correct	659 ms	64068 KB	Output is correct
19	Correct	706 ms	64144 KB	Output is correct
20	Correct	716 ms	64124 KB	Output is correct
21	Correct	76 ms	7660 KB	Output is correct
22	Correct	64 ms	7660 KB	Output is correct
23	Correct	127 ms	1260 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	77 ms	7788 KB	Output is correct
3	Correct	69 ms	7660 KB	Output is correct
4	Correct	694 ms	63980 KB	Output is correct
5	Correct	64 ms	7660 KB	Output is correct
6	Correct	67 ms	7660 KB	Output is correct
7	Correct	68 ms	7660 KB	Output is correct
8	Correct	68 ms	7692 KB	Output is correct
9	Correct	65 ms	7660 KB	Output is correct
10	Correct	63 ms	7660 KB	Output is correct
11	Correct	64 ms	7660 KB	Output is correct
12	Correct	64 ms	7660 KB	Output is correct
13	Correct	84 ms	7660 KB	Output is correct
14	Correct	681 ms	63852 KB	Output is correct
15	Correct	64 ms	7660 KB	Output is correct
16	Correct	701 ms	64048 KB	Output is correct
17	Correct	658 ms	64036 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	7 ms	1388 KB	Output is correct
3	Correct	7 ms	1388 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	384 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	7 ms	1388 KB	Output is correct
17	Correct	63 ms	7660 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	492 KB	Output is correct
22	Correct	1 ms	492 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	492 KB	Output is correct
26	Correct	1 ms	492 KB	Output is correct
27	Correct	1 ms	492 KB	Output is correct
28	Correct	293 ms	1388 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	658 ms	63084 KB	Output is correct
31	Correct	705 ms	64008 KB	Output is correct
32	Correct	701 ms	64140 KB	Output is correct
33	Correct	1 ms	364 KB	Output is correct
34	Correct	707 ms	64108 KB	Output is correct
35	Correct	672 ms	64192 KB	Output is correct
36	Correct	675 ms	63960 KB	Output is correct
37	Correct	707 ms	64152 KB	Output is correct
38	Correct	1 ms	364 KB	Output is correct
39	Correct	61 ms	7788 KB	Output is correct
40	Correct	72 ms	7788 KB	Output is correct
41	Correct	65 ms	7660 KB	Output is correct
42	Correct	64 ms	7660 KB	Output is correct
43	Correct	61 ms	7660 KB	Output is correct
44	Correct	62 ms	7660 KB	Output is correct
45	Correct	63 ms	7660 KB	Output is correct
46	Correct	66 ms	7660 KB	Output is correct
47	Correct	62 ms	7672 KB	Output is correct
48	Correct	66 ms	7660 KB	Output is correct
49	Correct	68 ms	7788 KB	Output is correct
50	Correct	63 ms	7660 KB	Output is correct
51	Correct	659 ms	64068 KB	Output is correct
52	Correct	706 ms	64144 KB	Output is correct
53	Correct	716 ms	64124 KB	Output is correct
54	Correct	76 ms	7660 KB	Output is correct
55	Correct	64 ms	7660 KB	Output is correct
56	Correct	127 ms	1260 KB	Output is correct
57	Correct	1 ms	364 KB	Output is correct
58	Correct	77 ms	7788 KB	Output is correct
59	Correct	69 ms	7660 KB	Output is correct
60	Correct	694 ms	63980 KB	Output is correct
61	Correct	64 ms	7660 KB	Output is correct
62	Correct	67 ms	7660 KB	Output is correct
63	Correct	68 ms	7660 KB	Output is correct
64	Correct	68 ms	7692 KB	Output is correct
65	Correct	65 ms	7660 KB	Output is correct
66	Correct	63 ms	7660 KB	Output is correct
67	Correct	64 ms	7660 KB	Output is correct
68	Correct	64 ms	7660 KB	Output is correct
69	Correct	84 ms	7660 KB	Output is correct
70	Correct	681 ms	63852 KB	Output is correct
71	Correct	64 ms	7660 KB	Output is correct
72	Correct	701 ms	64048 KB	Output is correct
73	Correct	658 ms	64036 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	7 ms	1388 KB	Output is correct
80	Correct	739 ms	63628 KB	Output is correct
81	Correct	725 ms	63644 KB	Output is correct
82	Correct	1083 ms	64108 KB	Output is correct
83	Correct	931 ms	63108 KB	Output is correct
84	Correct	775 ms	64236 KB	Output is correct
85	Correct	689 ms	64192 KB	Output is correct
86	Correct	129 ms	1528 KB	Output is correct
87	Correct	1 ms	364 KB	Output is correct

Submission #361925

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