Submission #663187

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
663187	2022-11-26T16:30:57 Z	Ai7081	Strange Device (APIO19_strange_device)	C++17	65 / 100	459 ms	16916 KB

strange_device

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll, ll>

ll n, a, b, l, r, p;
vector<pii> v;

ll gcd(ll c1, ll c2) {
    if (!c2) return c1;
    return gcd(c2, c1%c2);
}

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n >> a >> b;
    a /= gcd(a, b+1);
    p = ((double)1e18+1/b<(double)a ? (ll)1e18+1 : a*b);
    while (n--) {
        cin >> l >> r, l%=p, r%=p;
        if (l>r) v.push_back({0, r}), v.push_back({l, p-1});
        else v.push_back({l, r});
    }
    sort(v.begin(), v.end());
    ll out=0, ma=-1;
    for (auto [x,y]:v) out += (ma<x ? y-x+1 : max((ll)0, y-ma)), ma=max(ma, y);
    cout << out;
    return 0;
}

/*
3 3 3
4 4
7 9
17 18
ans: 4

3 5 10
1 20
50 68
89 98
ans: 31

1 1000000000000000 1000000000000000000
100000 1000000
*/

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	4 ms	608 KB	Output is correct
3	Correct	4 ms	600 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	312 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	5 ms	724 KB	Output is correct
17	Correct	53 ms	2412 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct

Subtask #2
0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	212 KB	Output is correct
2	Incorrect	212 KB	Output isn't correct
3	Halted	0 KB	-

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	273 ms	16836 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	397 ms	16852 KB	Output is correct
3	Correct	374 ms	16828 KB	Output is correct
4	Correct	360 ms	16796 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	397 ms	16852 KB	Output is correct
3	Correct	374 ms	16828 KB	Output is correct
4	Correct	360 ms	16796 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	385 ms	16792 KB	Output is correct
7	Correct	413 ms	16908 KB	Output is correct
8	Correct	363 ms	16804 KB	Output is correct
9	Correct	393 ms	16752 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	397 ms	16852 KB	Output is correct
3	Correct	374 ms	16828 KB	Output is correct
4	Correct	360 ms	16796 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	37 ms	2416 KB	Output is correct
7	Correct	48 ms	2508 KB	Output is correct
8	Correct	38 ms	2416 KB	Output is correct
9	Correct	40 ms	2464 KB	Output is correct
10	Correct	38 ms	2512 KB	Output is correct
11	Correct	39 ms	2588 KB	Output is correct
12	Correct	37 ms	2432 KB	Output is correct
13	Correct	39 ms	2512 KB	Output is correct
14	Correct	36 ms	2404 KB	Output is correct
15	Correct	42 ms	2484 KB	Output is correct
16	Correct	44 ms	2432 KB	Output is correct
17	Correct	49 ms	2464 KB	Output is correct
18	Correct	422 ms	16820 KB	Output is correct
19	Correct	382 ms	16796 KB	Output is correct
20	Correct	423 ms	16788 KB	Output is correct
21	Correct	44 ms	2492 KB	Output is correct
22	Correct	36 ms	2668 KB	Output is correct
23	Correct	122 ms	8604 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	40 ms	2420 KB	Output is correct
3	Correct	40 ms	2468 KB	Output is correct
4	Correct	459 ms	16916 KB	Output is correct
5	Correct	39 ms	2512 KB	Output is correct
6	Correct	42 ms	2448 KB	Output is correct
7	Correct	39 ms	2504 KB	Output is correct
8	Correct	41 ms	2512 KB	Output is correct
9	Correct	46 ms	2496 KB	Output is correct
10	Correct	42 ms	2436 KB	Output is correct
11	Correct	42 ms	2504 KB	Output is correct
12	Correct	34 ms	2516 KB	Output is correct
13	Correct	40 ms	2512 KB	Output is correct
14	Correct	428 ms	16876 KB	Output is correct
15	Correct	41 ms	2376 KB	Output is correct
16	Correct	372 ms	16788 KB	Output is correct
17	Correct	357 ms	16844 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct

Subtask #8
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	4 ms	608 KB	Output is correct
3	Correct	4 ms	600 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	312 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	5 ms	724 KB	Output is correct
17	Correct	53 ms	2412 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Incorrect	0 ms	212 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Submission #663187

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