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Submission #361964

# Submission time Handle Problem Language Result Execution time Memory
361964 2021-02-01T11:43:36 Z bigDuck Strange Device (APIO19_strange_device) C++14
100 / 100
 748 ms 67292 KB 
#include<bits/stdc++.h>
using namespace std;
#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount
#define int ll

int n, a, b;

int gcd(int x, int y){
    int a=x, b=y;
    if(a<b){
        swap(a, b);
    }
    if(b==0){return a;}
    return gcd(b, a%b);
}



int32_t main(){
INIT
cin>>n>>a>>b;
int k=a/gcd(a, b+1);
int m=0;
if( (( ((ll)(1e9))*((ll)(1e9)) )/(b))>=(k) ){
    m=k*(b);
}
else{
    m=((ll)2*((ll)(1e9))*((ll)(1e9)));
}
//cout<<(m)<<"\n";
set<pii> s;
int l, r;
for(int i=1; i<=n; i++){
    cin>>l>>r;
    s.insert( {(l%m), min(m-1, (l%m)+r-l )} );
    if( (r-l+1)>=m ){
        cout<<m<<"\n";
        return 0;
    }
    if( r>(l+(m-1-l%m) ) ){
        s.insert({0, r%m});
    }
}
l=0, r=-1;
int res=0;
for(auto it=s.begin(); it!=s.end(); it++){
    //cout<<l<<" "<<r<<"\n";
    if(r==-1){
        r=it->sc; l=it->ft;
        continue;
    }
    if(it->ft>r){
        res+=(r-l+1);
        l=it->ft, r=it->sc;
        continue;
    }
    r=max(r, it->sc);
}
//cout<<l<<" "<<r<<"\n";
res+=(r-l+1);
cout<<res;

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 7 ms 1044 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 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 6 ms 1004 KB Output is correct
17 Correct 63 ms 6764 KB Output is correct
18 Correct 1 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory 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 512 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory 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 307 ms 1004 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 660 ms 63080 KB Output is correct
3 Correct 700 ms 63340 KB Output is correct
4 Correct 669 ms 63324 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 660 ms 63080 KB Output is correct
3 Correct 700 ms 63340 KB Output is correct
4 Correct 669 ms 63324 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 664 ms 63084 KB Output is correct
7 Correct 670 ms 63084 KB Output is correct
8 Correct 669 ms 63260 KB Output is correct
9 Correct 726 ms 63212 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 660 ms 63080 KB Output is correct
3 Correct 700 ms 63340 KB Output is correct
4 Correct 669 ms 63324 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 60 ms 6752 KB Output is correct
7 Correct 60 ms 6764 KB Output is correct
8 Correct 64 ms 6764 KB Output is correct
9 Correct 65 ms 6804 KB Output is correct
10 Correct 62 ms 6892 KB Output is correct
11 Correct 63 ms 6892 KB Output is correct
12 Correct 62 ms 6764 KB Output is correct
13 Correct 64 ms 6764 KB Output is correct
14 Correct 61 ms 6764 KB Output is correct
15 Correct 71 ms 6764 KB Output is correct
16 Correct 64 ms 6764 KB Output is correct
17 Correct 62 ms 6764 KB Output is correct
18 Correct 649 ms 63212 KB Output is correct
19 Correct 678 ms 63340 KB Output is correct
20 Correct 748 ms 63340 KB Output is correct
21 Correct 63 ms 6764 KB Output is correct
22 Correct 62 ms 6764 KB Output is correct
23 Correct 122 ms 620 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 66 ms 6892 KB Output is correct
3 Correct 70 ms 6892 KB Output is correct
4 Correct 713 ms 63308 KB Output is correct
5 Correct 66 ms 6764 KB Output is correct
6 Correct 67 ms 6764 KB Output is correct
7 Correct 66 ms 6764 KB Output is correct
8 Correct 66 ms 6764 KB Output is correct
9 Correct 64 ms 6892 KB Output is correct
10 Correct 66 ms 6764 KB Output is correct
11 Correct 62 ms 6764 KB Output is correct
12 Correct 62 ms 6764 KB Output is correct
13 Correct 64 ms 6764 KB Output is correct
14 Correct 685 ms 63276 KB Output is correct
15 Correct 61 ms 6892 KB Output is correct
16 Correct 659 ms 63084 KB Output is correct
17 Correct 655 ms 63340 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 7 ms 1044 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 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 6 ms 1004 KB Output is correct
17 Correct 63 ms 6764 KB Output is correct
18 Correct 1 ms 384 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 512 KB Output is correct
24 Correct 1 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 307 ms 1004 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 660 ms 63080 KB Output is correct
31 Correct 700 ms 63340 KB Output is correct
32 Correct 669 ms 63324 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 664 ms 63084 KB Output is correct
35 Correct 670 ms 63084 KB Output is correct
36 Correct 669 ms 63260 KB Output is correct
37 Correct 726 ms 63212 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 60 ms 6752 KB Output is correct
40 Correct 60 ms 6764 KB Output is correct
41 Correct 64 ms 6764 KB Output is correct
42 Correct 65 ms 6804 KB Output is correct
43 Correct 62 ms 6892 KB Output is correct
44 Correct 63 ms 6892 KB Output is correct
45 Correct 62 ms 6764 KB Output is correct
46 Correct 64 ms 6764 KB Output is correct
47 Correct 61 ms 6764 KB Output is correct
48 Correct 71 ms 6764 KB Output is correct
49 Correct 64 ms 6764 KB Output is correct
50 Correct 62 ms 6764 KB Output is correct
51 Correct 649 ms 63212 KB Output is correct
52 Correct 678 ms 63340 KB Output is correct
53 Correct 748 ms 63340 KB Output is correct
54 Correct 63 ms 6764 KB Output is correct
55 Correct 62 ms 6764 KB Output is correct
56 Correct 122 ms 620 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 66 ms 6892 KB Output is correct
59 Correct 70 ms 6892 KB Output is correct
60 Correct 713 ms 63308 KB Output is correct
61 Correct 66 ms 6764 KB Output is correct
62 Correct 67 ms 6764 KB Output is correct
63 Correct 66 ms 6764 KB Output is correct
64 Correct 66 ms 6764 KB Output is correct
65 Correct 64 ms 6892 KB Output is correct
66 Correct 66 ms 6764 KB Output is correct
67 Correct 62 ms 6764 KB Output is correct
68 Correct 62 ms 6764 KB Output is correct
69 Correct 64 ms 6764 KB Output is correct
70 Correct 685 ms 63276 KB Output is correct
71 Correct 61 ms 6892 KB Output is correct
72 Correct 659 ms 63084 KB Output is correct
73 Correct 655 ms 63340 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 720 ms 67180 KB Output is correct
81 Correct 682 ms 67280 KB Output is correct
82 Correct 714 ms 67292 KB Output is correct
83 Correct 691 ms 63340 KB Output is correct
84 Correct 739 ms 67052 KB Output is correct
85 Correct 694 ms 67052 KB Output is correct
86 Correct 136 ms 4332 KB Output is correct
87 Correct 1 ms 364 KB Output is correct