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Submission #265285

# Submission time Handle Problem Language Result Execution time Memory
265285 2020-08-14T14:51:09 Z Hideo Strange Device (APIO19_strange_device) C++17
100 / 100
 552 ms 18004 KB 
//1610612741, 1000000007
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx,avx2,fma")

#include <bits/stdc++.h>
using namespace std;

#define all(s) s.begin(), s.end()
#define ok puts("ok")
#define ll long long
#define pb push_back
#define mk make_pair
#define fr first
#define sc second
#define vi vector < int >
#define pi pair < int, int >
#define pii pair < int, pi >
#define next next123
#define left left123

const int N = 1e6 + 7;
const int INF = 1e9 + 7;

int n;
ll A, B, p, ans;
ll bound = 1e18;
bool trigger = false;

vector < pair < ll, ll > > s;

main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> A >> B;
    p = A / __gcd(B + 1, A);
    if (B > bound / p)
        p = bound;
    else
        p *= B;
    for (int i = 1; i <= n; i++){
        ll l, r;
        cin >> l >> r;
        if (r - l + 1 >= p)
            trigger = true;
        l %= p;
        r %= p;
        if (l > r){
            s.pb({l, p - 1});
            s.pb({0, r});
        }
        else
            s.pb({l, r});
    }
    if (trigger){
        cout << p;
        return 0;
    }
    sort(all(s));
    ll r = -1;
    for (auto it : s){
        if (r < it.fr)
            r = it.fr - 1;
        ans += max(0LL, it.sc - r);
        r = max(r, it.sc);
    }
    cout << ans << endl;
}

Compilation message

strange_device.cpp:4: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    4 | #pragma GCC optimization ("unroll-loops")
      | 
strange_device.cpp:34:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   34 | main(){
      |      ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 5 ms 1152 KB Output is correct
3 Correct 5 ms 1152 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 1152 KB Output is correct
17 Correct 59 ms 3228 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 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 425 ms 17600 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 468 ms 17872 KB Output is correct
3 Correct 530 ms 17876 KB Output is correct
4 Correct 539 ms 18004 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 468 ms 17872 KB Output is correct
3 Correct 530 ms 17876 KB Output is correct
4 Correct 539 ms 18004 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 543 ms 17956 KB Output is correct
7 Correct 475 ms 17876 KB Output is correct
8 Correct 513 ms 17940 KB Output is correct
9 Correct 501 ms 17876 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 468 ms 17872 KB Output is correct
3 Correct 530 ms 17876 KB Output is correct
4 Correct 539 ms 18004 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 52 ms 3184 KB Output is correct
7 Correct 61 ms 3196 KB Output is correct
8 Correct 49 ms 3184 KB Output is correct
9 Correct 46 ms 3184 KB Output is correct
10 Correct 47 ms 3184 KB Output is correct
11 Correct 46 ms 3188 KB Output is correct
12 Correct 58 ms 3192 KB Output is correct
13 Correct 51 ms 3184 KB Output is correct
14 Correct 45 ms 3192 KB Output is correct
15 Correct 49 ms 3184 KB Output is correct
16 Correct 48 ms 3192 KB Output is correct
17 Correct 58 ms 3064 KB Output is correct
18 Correct 496 ms 17364 KB Output is correct
19 Correct 462 ms 17912 KB Output is correct
20 Correct 520 ms 17620 KB Output is correct
21 Correct 55 ms 2928 KB Output is correct
22 Correct 43 ms 2928 KB Output is correct
23 Correct 164 ms 8928 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 50 ms 2936 KB Output is correct
3 Correct 48 ms 2924 KB Output is correct
4 Correct 522 ms 17284 KB Output is correct
5 Correct 48 ms 3064 KB Output is correct
6 Correct 46 ms 2928 KB Output is correct
7 Correct 46 ms 2932 KB Output is correct
8 Correct 48 ms 2936 KB Output is correct
9 Correct 49 ms 2936 KB Output is correct
10 Correct 49 ms 2928 KB Output is correct
11 Correct 47 ms 2936 KB Output is correct
12 Correct 45 ms 2928 KB Output is correct
13 Correct 58 ms 2928 KB Output is correct
14 Correct 505 ms 17236 KB Output is correct
15 Correct 49 ms 2928 KB Output is correct
16 Correct 459 ms 17492 KB Output is correct
17 Correct 455 ms 17492 KB Output is correct
18 Correct 1 ms 384 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 5 ms 1152 KB Output is correct
3 Correct 5 ms 1152 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 5 ms 1152 KB Output is correct
17 Correct 59 ms 3228 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 425 ms 17600 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 468 ms 17872 KB Output is correct
31 Correct 530 ms 17876 KB Output is correct
32 Correct 539 ms 18004 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 543 ms 17956 KB Output is correct
35 Correct 475 ms 17876 KB Output is correct
36 Correct 513 ms 17940 KB Output is correct
37 Correct 501 ms 17876 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 52 ms 3184 KB Output is correct
40 Correct 61 ms 3196 KB Output is correct
41 Correct 49 ms 3184 KB Output is correct
42 Correct 46 ms 3184 KB Output is correct
43 Correct 47 ms 3184 KB Output is correct
44 Correct 46 ms 3188 KB Output is correct
45 Correct 58 ms 3192 KB Output is correct
46 Correct 51 ms 3184 KB Output is correct
47 Correct 45 ms 3192 KB Output is correct
48 Correct 49 ms 3184 KB Output is correct
49 Correct 48 ms 3192 KB Output is correct
50 Correct 58 ms 3064 KB Output is correct
51 Correct 496 ms 17364 KB Output is correct
52 Correct 462 ms 17912 KB Output is correct
53 Correct 520 ms 17620 KB Output is correct
54 Correct 55 ms 2928 KB Output is correct
55 Correct 43 ms 2928 KB Output is correct
56 Correct 164 ms 8928 KB Output is correct
57 Correct 0 ms 384 KB Output is correct
58 Correct 50 ms 2936 KB Output is correct
59 Correct 48 ms 2924 KB Output is correct
60 Correct 522 ms 17284 KB Output is correct
61 Correct 48 ms 3064 KB Output is correct
62 Correct 46 ms 2928 KB Output is correct
63 Correct 46 ms 2932 KB Output is correct
64 Correct 48 ms 2936 KB Output is correct
65 Correct 49 ms 2936 KB Output is correct
66 Correct 49 ms 2928 KB Output is correct
67 Correct 47 ms 2936 KB Output is correct
68 Correct 45 ms 2928 KB Output is correct
69 Correct 58 ms 2928 KB Output is correct
70 Correct 505 ms 17236 KB Output is correct
71 Correct 49 ms 2928 KB Output is correct
72 Correct 459 ms 17492 KB Output is correct
73 Correct 455 ms 17492 KB Output is correct
74 Correct 1 ms 384 KB Output is correct
75 Correct 1 ms 384 KB Output is correct
76 Correct 0 ms 384 KB Output is correct
77 Correct 0 ms 384 KB Output is correct
78 Correct 0 ms 384 KB Output is correct
79 Correct 6 ms 1152 KB Output is correct
80 Correct 532 ms 17236 KB Output is correct
81 Correct 552 ms 17236 KB Output is correct
82 Correct 549 ms 17236 KB Output is correct
83 Correct 514 ms 17236 KB Output is correct
84 Correct 488 ms 17236 KB Output is correct
85 Correct 491 ms 17364 KB Output is correct
86 Correct 163 ms 8964 KB Output is correct
87 Correct 1 ms 384 KB Output is correct