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Submission #979299

# Submission time Handle Problem Language Result Execution time Memory
979299 2024-05-10T14:04:06 Z nnin Strange Device (APIO19_strange_device) C++17
100 / 100
 386 ms 54476 KB 
#include<bits/stdc++.h>
using namespace std;
#define pii pair<ll,ll>
#define f first
#define s second
#define ll long long

int n;
ll A, B;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin>>n>>A>>B;
    ll g = __gcd(A, B+1);
    A /= g;
    vector<pii> v;
    bool all = 0;
    for(int i=0;i<n;i++) {
        ll l, r;
        cin>>l>>r;
        if(all) continue;
        ll x = l/A;
        x /= B;
        ll y = r/A;
        y /= B;
        if(x==0 && y==0) {
            v.push_back({l, r});
        } else if(x==y) {
            v.push_back({l%(A*B), r%(A*B)});
        } else if(x+1==y) {
            v.push_back({l%(A*B), (A*B)-1});
            v.push_back({0, r%(A*B)});
        } else {
            all = 1;
        }
    }
    if(all) {
        cout<<A*B;
        return 0;
    }
    sort(v.begin(), v.end());
    ll ct = 0, last = -1;
    for(int i=0;i<v.size();i++) {
        if(last>=v[i].s) continue;
        if(last<v[i].f) last = v[i].f-1;
        ct += v[i].s-last;
        last = v[i].s;
    }
    cout<<ct;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:44:18: 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]
   44 |     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 736 KB Output is correct
3 Correct 5 ms 736 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 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 4 ms 1116 KB Output is correct
17 Correct 37 ms 5836 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 344 KB Output is correct
4 Correct 0 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 344 KB Output is correct
5 Correct 230 ms 17536 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 331 ms 17404 KB Output is correct
3 Correct 322 ms 17076 KB Output is correct
4 Correct 303 ms 53424 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 331 ms 17404 KB Output is correct
3 Correct 322 ms 17076 KB Output is correct
4 Correct 303 ms 53424 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 325 ms 53856 KB Output is correct
7 Correct 335 ms 53344 KB Output is correct
8 Correct 319 ms 53420 KB Output is correct
9 Correct 341 ms 53784 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 331 ms 17404 KB Output is correct
3 Correct 322 ms 17076 KB Output is correct
4 Correct 303 ms 53424 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 33 ms 5844 KB Output is correct
7 Correct 37 ms 5836 KB Output is correct
8 Correct 31 ms 5828 KB Output is correct
9 Correct 33 ms 5836 KB Output is correct
10 Correct 34 ms 5796 KB Output is correct
11 Correct 34 ms 5632 KB Output is correct
12 Correct 31 ms 5740 KB Output is correct
13 Correct 40 ms 5832 KB Output is correct
14 Correct 40 ms 5832 KB Output is correct
15 Correct 38 ms 5640 KB Output is correct
16 Correct 36 ms 5832 KB Output is correct
17 Correct 32 ms 5832 KB Output is correct
18 Correct 343 ms 53420 KB Output is correct
19 Correct 346 ms 53332 KB Output is correct
20 Correct 345 ms 53308 KB Output is correct
21 Correct 37 ms 5808 KB Output is correct
22 Correct 30 ms 5920 KB Output is correct
23 Correct 98 ms 19472 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 36 ms 2536 KB Output is correct
3 Correct 34 ms 2516 KB Output is correct
4 Correct 363 ms 17712 KB Output is correct
5 Correct 33 ms 2516 KB Output is correct
6 Correct 34 ms 2520 KB Output is correct
7 Correct 34 ms 2520 KB Output is correct
8 Correct 35 ms 2628 KB Output is correct
9 Correct 34 ms 2520 KB Output is correct
10 Correct 34 ms 2520 KB Output is correct
11 Correct 35 ms 2496 KB Output is correct
12 Correct 30 ms 2520 KB Output is correct
13 Correct 41 ms 2516 KB Output is correct
14 Correct 344 ms 18680 KB Output is correct
15 Correct 35 ms 2520 KB Output is correct
16 Correct 341 ms 53420 KB Output is correct
17 Correct 333 ms 53180 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 736 KB Output is correct
3 Correct 5 ms 736 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 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 4 ms 1116 KB Output is correct
17 Correct 37 ms 5836 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 344 KB Output is correct
22 Correct 0 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 344 KB Output is correct
28 Correct 230 ms 17536 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 331 ms 17404 KB Output is correct
31 Correct 322 ms 17076 KB Output is correct
32 Correct 303 ms 53424 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 325 ms 53856 KB Output is correct
35 Correct 335 ms 53344 KB Output is correct
36 Correct 319 ms 53420 KB Output is correct
37 Correct 341 ms 53784 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 33 ms 5844 KB Output is correct
40 Correct 37 ms 5836 KB Output is correct
41 Correct 31 ms 5828 KB Output is correct
42 Correct 33 ms 5836 KB Output is correct
43 Correct 34 ms 5796 KB Output is correct
44 Correct 34 ms 5632 KB Output is correct
45 Correct 31 ms 5740 KB Output is correct
46 Correct 40 ms 5832 KB Output is correct
47 Correct 40 ms 5832 KB Output is correct
48 Correct 38 ms 5640 KB Output is correct
49 Correct 36 ms 5832 KB Output is correct
50 Correct 32 ms 5832 KB Output is correct
51 Correct 343 ms 53420 KB Output is correct
52 Correct 346 ms 53332 KB Output is correct
53 Correct 345 ms 53308 KB Output is correct
54 Correct 37 ms 5808 KB Output is correct
55 Correct 30 ms 5920 KB Output is correct
56 Correct 98 ms 19472 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 36 ms 2536 KB Output is correct
59 Correct 34 ms 2516 KB Output is correct
60 Correct 363 ms 17712 KB Output is correct
61 Correct 33 ms 2516 KB Output is correct
62 Correct 34 ms 2520 KB Output is correct
63 Correct 34 ms 2520 KB Output is correct
64 Correct 35 ms 2628 KB Output is correct
65 Correct 34 ms 2520 KB Output is correct
66 Correct 34 ms 2520 KB Output is correct
67 Correct 35 ms 2496 KB Output is correct
68 Correct 30 ms 2520 KB Output is correct
69 Correct 41 ms 2516 KB Output is correct
70 Correct 344 ms 18680 KB Output is correct
71 Correct 35 ms 2520 KB Output is correct
72 Correct 341 ms 53420 KB Output is correct
73 Correct 333 ms 53180 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 5 ms 1172 KB Output is correct
80 Correct 383 ms 53384 KB Output is correct
81 Correct 386 ms 54476 KB Output is correct
82 Correct 352 ms 53180 KB Output is correct
83 Correct 363 ms 53548 KB Output is correct
84 Correct 355 ms 53416 KB Output is correct
85 Correct 367 ms 53200 KB Output is correct
86 Correct 108 ms 20488 KB Output is correct
87 Correct 0 ms 348 KB Output is correct