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Submission #1087028

# Submission time Handle Problem Language Result Execution time Memory
1087028 2024-09-12T05:32:00 Z alexander707070 Strange Device (APIO19_strange_device) C++14
100 / 100
 353 ms 69088 KB 
#include<bits/stdc++.h>
#define MAXN 1000007
using namespace std;

const long long inf=1e18+7;

int n;
pair<long long,long long> p[MAXN];
long long A,B;

vector< pair<long long,long long> > v;
long long ans,last;

int main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>A>>B;
    
    long long cycle=A/__gcd(A,B+1);
    
    if(cycle>inf/B)cycle=inf;
    else cycle*=B;

    for(int i=1;i<=n;i++){
        cin>>p[i].first>>p[i].second;

        if(p[i].second-p[i].first+1>=cycle){
            cout<<cycle<<"\n";
            return 0;
        }

        p[i].first%=cycle; p[i].second%=cycle;
        
        if(p[i].first<=p[i].second){
            v.push_back({p[i].first,p[i].second});
        }else{
            v.push_back({0,p[i].second});
            v.push_back({p[i].first,cycle-1});
        }
    }

    sort(v.begin(),v.end());

    last=-1;
    for(int i=0;i<v.size();i++){
        ans+=max(0LL , v[i].second-max(v[i].first-1,last));

        last=max(last,v[i].second);
    }

    cout<<ans<<"\n";

    return 0;

}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:48:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |     for(int i=0;i<v.size();i++){
      |                 ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 4 ms 1248 KB Output is correct
3 Correct 4 ms 1248 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 1248 KB Output is correct
17 Correct 35 ms 7296 KB Output is correct
18 Correct 0 ms 344 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 211 ms 57032 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 287 ms 68980 KB Output is correct
3 Correct 287 ms 68804 KB Output is correct
4 Correct 286 ms 69020 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 287 ms 68980 KB Output is correct
3 Correct 287 ms 68804 KB Output is correct
4 Correct 286 ms 69020 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 286 ms 68956 KB Output is correct
7 Correct 281 ms 69088 KB Output is correct
8 Correct 285 ms 68768 KB Output is correct
9 Correct 334 ms 69000 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 287 ms 68980 KB Output is correct
3 Correct 287 ms 68804 KB Output is correct
4 Correct 286 ms 69020 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 32 ms 7336 KB Output is correct
7 Correct 29 ms 7396 KB Output is correct
8 Correct 27 ms 7368 KB Output is correct
9 Correct 35 ms 7364 KB Output is correct
10 Correct 27 ms 7372 KB Output is correct
11 Correct 28 ms 7380 KB Output is correct
12 Correct 28 ms 7232 KB Output is correct
13 Correct 30 ms 7364 KB Output is correct
14 Correct 35 ms 7368 KB Output is correct
15 Correct 37 ms 7364 KB Output is correct
16 Correct 30 ms 7200 KB Output is correct
17 Correct 31 ms 7376 KB Output is correct
18 Correct 300 ms 68960 KB Output is correct
19 Correct 289 ms 68764 KB Output is correct
20 Correct 311 ms 68764 KB Output is correct
21 Correct 32 ms 7368 KB Output is correct
22 Correct 26 ms 7372 KB Output is correct
23 Correct 88 ms 23780 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 29 ms 7404 KB Output is correct
3 Correct 31 ms 7372 KB Output is correct
4 Correct 329 ms 68948 KB Output is correct
5 Correct 31 ms 7256 KB Output is correct
6 Correct 31 ms 7376 KB Output is correct
7 Correct 38 ms 7372 KB Output is correct
8 Correct 32 ms 7368 KB Output is correct
9 Correct 34 ms 7368 KB Output is correct
10 Correct 31 ms 7372 KB Output is correct
11 Correct 33 ms 7208 KB Output is correct
12 Correct 26 ms 7368 KB Output is correct
13 Correct 37 ms 7372 KB Output is correct
14 Correct 306 ms 68900 KB Output is correct
15 Correct 32 ms 7288 KB Output is correct
16 Correct 300 ms 69024 KB Output is correct
17 Correct 291 ms 68900 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 4 ms 1248 KB Output is correct
3 Correct 4 ms 1248 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 1248 KB Output is correct
17 Correct 35 ms 7296 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 211 ms 57032 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 287 ms 68980 KB Output is correct
31 Correct 287 ms 68804 KB Output is correct
32 Correct 286 ms 69020 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 286 ms 68956 KB Output is correct
35 Correct 281 ms 69088 KB Output is correct
36 Correct 285 ms 68768 KB Output is correct
37 Correct 334 ms 69000 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 32 ms 7336 KB Output is correct
40 Correct 29 ms 7396 KB Output is correct
41 Correct 27 ms 7368 KB Output is correct
42 Correct 35 ms 7364 KB Output is correct
43 Correct 27 ms 7372 KB Output is correct
44 Correct 28 ms 7380 KB Output is correct
45 Correct 28 ms 7232 KB Output is correct
46 Correct 30 ms 7364 KB Output is correct
47 Correct 35 ms 7368 KB Output is correct
48 Correct 37 ms 7364 KB Output is correct
49 Correct 30 ms 7200 KB Output is correct
50 Correct 31 ms 7376 KB Output is correct
51 Correct 300 ms 68960 KB Output is correct
52 Correct 289 ms 68764 KB Output is correct
53 Correct 311 ms 68764 KB Output is correct
54 Correct 32 ms 7368 KB Output is correct
55 Correct 26 ms 7372 KB Output is correct
56 Correct 88 ms 23780 KB Output is correct
57 Correct 1 ms 344 KB Output is correct
58 Correct 29 ms 7404 KB Output is correct
59 Correct 31 ms 7372 KB Output is correct
60 Correct 329 ms 68948 KB Output is correct
61 Correct 31 ms 7256 KB Output is correct
62 Correct 31 ms 7376 KB Output is correct
63 Correct 38 ms 7372 KB Output is correct
64 Correct 32 ms 7368 KB Output is correct
65 Correct 34 ms 7368 KB Output is correct
66 Correct 31 ms 7372 KB Output is correct
67 Correct 33 ms 7208 KB Output is correct
68 Correct 26 ms 7368 KB Output is correct
69 Correct 37 ms 7372 KB Output is correct
70 Correct 306 ms 68900 KB Output is correct
71 Correct 32 ms 7288 KB Output is correct
72 Correct 300 ms 69024 KB Output is correct
73 Correct 291 ms 68900 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 1 ms 464 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 3 ms 1248 KB Output is correct
80 Correct 321 ms 68884 KB Output is correct
81 Correct 332 ms 68900 KB Output is correct
82 Correct 353 ms 68888 KB Output is correct
83 Correct 339 ms 68764 KB Output is correct
84 Correct 308 ms 68776 KB Output is correct
85 Correct 310 ms 68808 KB Output is correct
86 Correct 85 ms 23600 KB Output is correct
87 Correct 1 ms 348 KB Output is correct