Submission #663185

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
663185	2022-11-26T16:29:24 Z	Ai7081	Strange Device (APIO19_strange_device)	C++17	65 / 100	456 ms	17024 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	6 ms	648 KB	Output is correct
3	Correct	6 ms	600 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	256 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 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	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	4 ms	600 KB	Output is correct
17	Correct	43 ms	2492 KB	Output is correct
18	Correct	0 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	294 ms	16812 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	399 ms	16936 KB	Output is correct
3	Correct	372 ms	16812 KB	Output is correct
4	Correct	375 ms	16764 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	399 ms	16936 KB	Output is correct
3	Correct	372 ms	16812 KB	Output is correct
4	Correct	375 ms	16764 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	381 ms	16868 KB	Output is correct
7	Correct	385 ms	16848 KB	Output is correct
8	Correct	376 ms	16808 KB	Output is correct
9	Correct	416 ms	16816 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	399 ms	16936 KB	Output is correct
3	Correct	372 ms	16812 KB	Output is correct
4	Correct	375 ms	16764 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	38 ms	2484 KB	Output is correct
7	Correct	41 ms	2492 KB	Output is correct
8	Correct	41 ms	2476 KB	Output is correct
9	Correct	41 ms	2488 KB	Output is correct
10	Correct	37 ms	2504 KB	Output is correct
11	Correct	50 ms	2408 KB	Output is correct
12	Correct	35 ms	2388 KB	Output is correct
13	Correct	39 ms	2536 KB	Output is correct
14	Correct	39 ms	2464 KB	Output is correct
15	Correct	44 ms	2512 KB	Output is correct
16	Correct	39 ms	2400 KB	Output is correct
17	Correct	38 ms	2400 KB	Output is correct
18	Correct	401 ms	16824 KB	Output is correct
19	Correct	388 ms	17004 KB	Output is correct
20	Correct	414 ms	16828 KB	Output is correct
21	Correct	43 ms	2460 KB	Output is correct
22	Correct	34 ms	2500 KB	Output is correct
23	Correct	118 ms	8544 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	2416 KB	Output is correct
3	Correct	42 ms	2500 KB	Output is correct
4	Correct	448 ms	16824 KB	Output is correct
5	Correct	41 ms	2512 KB	Output is correct
6	Correct	40 ms	2444 KB	Output is correct
7	Correct	41 ms	2460 KB	Output is correct
8	Correct	45 ms	2416 KB	Output is correct
9	Correct	41 ms	2512 KB	Output is correct
10	Correct	54 ms	2460 KB	Output is correct
11	Correct	46 ms	2512 KB	Output is correct
12	Correct	35 ms	2512 KB	Output is correct
13	Correct	40 ms	2492 KB	Output is correct
14	Correct	456 ms	16932 KB	Output is correct
15	Correct	42 ms	2508 KB	Output is correct
16	Correct	375 ms	17024 KB	Output is correct
17	Correct	383 ms	16808 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	6 ms	648 KB	Output is correct
3	Correct	6 ms	600 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	256 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 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	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	4 ms	600 KB	Output is correct
17	Correct	43 ms	2492 KB	Output is correct
18	Correct	0 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 #663185

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