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Submission #363264

# Submission time Handle Problem Language Result Execution time Memory
363264 2021-02-05T11:58:58 Z armanmohammadi Strange Device (APIO19_strange_device) C++14
100 / 100
 738 ms 95336 KB 
/*
 _________        .---"""      """---.
:______.-':      :  .--------------.  :
| ______  |      | :                : |
|:______B:|      | |  Little Error: | |
|:______B:|      | |                | |
|:______B:|      | |  Power not     | |
|         |      | |  found.        | |
|:_____:  |      | |                | |
|    ==   |      | :                : |
|       O |      :  '--------------'  :
|       o |      :'---...______...---'
|       o |-._.-i___/'             \._
|'-.____o_|   '-.   '-...______...-'  `-._
:_________:      `.____________________   `-.___.-.
                 .'.eeeeeeeeeeeeeeeeee.'.      :___:
    fsc        .'.eeeeeeeeeeeeeeeeeeeeee.'.
              :____________________________:
*/




//in the name of god
//if you read this code please search about imam hussain
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

#define pb push_back
#define endl "\n"
#define X first
#define Y second
#define pii pair<ll,ll>
#define migmig ios::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#define read freopen("input.txt", "r", stdin);freopen("output.txt", "w", stdout)
const int maxn=2e5+5;
const int mod=1e9+7;
const ll inf=1e18;
const int del=728729;
const int Pr2 = 1030294297 ;
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);
}

set<pii> st ; 
ll n ;
ll a  ;
ll b  ;
ll l ;
ll r ;
ll lp ;
ll rp ;
ll ans ;
ll p ;
ll w ;
ll k ; 
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 ; 
  } 
  for(int tst=0 ; tst< n ; tst++){
    cin>>l>>r ;
    if(k){
    	continue ;
	}
    if(r - l + 1 >= p ){
      k = 1 ;
      ans = p ; 
      continue ; 
    } 
    l = l % p ; 
    r = r % p ; 
    if(r >= l){
      st.insert({l , r}) ; 
    }else{
      st.insert({0 , r}) ; 
      st.insert({l , p - 1}) ; 
    }
  }
  
  
  
  
  
  
  
  
  
   
  if(k){
    cout<<ans ; 
    return 0; 
  }
  st.insert({inf + 1 , inf  + 1}) ; 
  lp = st.begin() -> X ;
  rp = st.begin() -> Y ; 
  //cout<<lp <<" " << rp ;
  auto it = next(st.begin()) ;
  while(it != st.end()){
    if(it -> X > rp){
    	//cout<<lp <<" " << rp ;
    	ans += rp - lp + 1 ; 
    	lp = it -> X;
		rp = it -> Y ; 
		//cout<<lp <<" " << rp ;
    }else{
      rp = max(1LL*rp ,1LL* it -> Y) ;
      //cout<<lp <<" " << rp ;
    }
    it++ ; 
  } 
  cout<<ans << endl ; 
  return 0 ;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 6 ms 1004 KB Output is correct
3 Correct 6 ms 1004 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 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 0 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 0 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 6 ms 1004 KB Output is correct
17 Correct 63 ms 6636 KB Output is correct
18 Correct 0 ms 364 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 0 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 396 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 291 ms 492 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 653 ms 63072 KB Output is correct
3 Correct 662 ms 62956 KB Output is correct
4 Correct 671 ms 72556 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 653 ms 63072 KB Output is correct
3 Correct 662 ms 62956 KB Output is correct
4 Correct 671 ms 72556 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 668 ms 72556 KB Output is correct
7 Correct 678 ms 72428 KB Output is correct
8 Correct 669 ms 72556 KB Output is correct
9 Correct 692 ms 72428 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 653 ms 63072 KB Output is correct
3 Correct 662 ms 62956 KB Output is correct
4 Correct 671 ms 72556 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 66 ms 10348 KB Output is correct
7 Correct 67 ms 10348 KB Output is correct
8 Correct 63 ms 10476 KB Output is correct
9 Correct 65 ms 10348 KB Output is correct
10 Correct 62 ms 10476 KB Output is correct
11 Correct 64 ms 10348 KB Output is correct
12 Correct 69 ms 10348 KB Output is correct
13 Correct 64 ms 10368 KB Output is correct
14 Correct 64 ms 10348 KB Output is correct
15 Correct 68 ms 10348 KB Output is correct
16 Correct 69 ms 10368 KB Output is correct
17 Correct 66 ms 10360 KB Output is correct
18 Correct 666 ms 73608 KB Output is correct
19 Correct 671 ms 81388 KB Output is correct
20 Correct 690 ms 73196 KB Output is correct
21 Correct 64 ms 10476 KB Output is correct
22 Correct 66 ms 10476 KB Output is correct
23 Correct 138 ms 12920 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 64 ms 6636 KB Output is correct
3 Correct 69 ms 6636 KB Output is correct
4 Correct 690 ms 78700 KB Output is correct
5 Correct 65 ms 10348 KB Output is correct
6 Correct 66 ms 10348 KB Output is correct
7 Correct 67 ms 10348 KB Output is correct
8 Correct 68 ms 10348 KB Output is correct
9 Correct 65 ms 10348 KB Output is correct
10 Correct 64 ms 10476 KB Output is correct
11 Correct 65 ms 10348 KB Output is correct
12 Correct 64 ms 10348 KB Output is correct
13 Correct 65 ms 10348 KB Output is correct
14 Correct 695 ms 78624 KB Output is correct
15 Correct 65 ms 10348 KB Output is correct
16 Correct 667 ms 73352 KB Output is correct
17 Correct 655 ms 73332 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 1 ms 364 KB Output is correct
2 Correct 6 ms 1004 KB Output is correct
3 Correct 6 ms 1004 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 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 0 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 0 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 6 ms 1004 KB Output is correct
17 Correct 63 ms 6636 KB Output is correct
18 Correct 0 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 0 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 0 ms 364 KB Output is correct
24 Correct 0 ms 364 KB Output is correct
25 Correct 1 ms 396 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 291 ms 492 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 653 ms 63072 KB Output is correct
31 Correct 662 ms 62956 KB Output is correct
32 Correct 671 ms 72556 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 668 ms 72556 KB Output is correct
35 Correct 678 ms 72428 KB Output is correct
36 Correct 669 ms 72556 KB Output is correct
37 Correct 692 ms 72428 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 66 ms 10348 KB Output is correct
40 Correct 67 ms 10348 KB Output is correct
41 Correct 63 ms 10476 KB Output is correct
42 Correct 65 ms 10348 KB Output is correct
43 Correct 62 ms 10476 KB Output is correct
44 Correct 64 ms 10348 KB Output is correct
45 Correct 69 ms 10348 KB Output is correct
46 Correct 64 ms 10368 KB Output is correct
47 Correct 64 ms 10348 KB Output is correct
48 Correct 68 ms 10348 KB Output is correct
49 Correct 69 ms 10368 KB Output is correct
50 Correct 66 ms 10360 KB Output is correct
51 Correct 666 ms 73608 KB Output is correct
52 Correct 671 ms 81388 KB Output is correct
53 Correct 690 ms 73196 KB Output is correct
54 Correct 64 ms 10476 KB Output is correct
55 Correct 66 ms 10476 KB Output is correct
56 Correct 138 ms 12920 KB Output is correct
57 Correct 1 ms 492 KB Output is correct
58 Correct 64 ms 6636 KB Output is correct
59 Correct 69 ms 6636 KB Output is correct
60 Correct 690 ms 78700 KB Output is correct
61 Correct 65 ms 10348 KB Output is correct
62 Correct 66 ms 10348 KB Output is correct
63 Correct 67 ms 10348 KB Output is correct
64 Correct 68 ms 10348 KB Output is correct
65 Correct 65 ms 10348 KB Output is correct
66 Correct 64 ms 10476 KB Output is correct
67 Correct 65 ms 10348 KB Output is correct
68 Correct 64 ms 10348 KB Output is correct
69 Correct 65 ms 10348 KB Output is correct
70 Correct 695 ms 78624 KB Output is correct
71 Correct 65 ms 10348 KB Output is correct
72 Correct 667 ms 73352 KB Output is correct
73 Correct 655 ms 73332 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 680 ms 77240 KB Output is correct
81 Correct 703 ms 77164 KB Output is correct
82 Correct 708 ms 77308 KB Output is correct
83 Correct 702 ms 95336 KB Output is correct
84 Correct 738 ms 81772 KB Output is correct
85 Correct 692 ms 81516 KB Output is correct
86 Correct 128 ms 12928 KB Output is correct
87 Correct 1 ms 364 KB Output is correct