Submission #284546

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
284546	2020-08-27T15:43:43 Z	AaronNaidu	Strange Device (APIO19_strange_device)	C++14	100 / 100	3633 ms	64940 KB

strange_device

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;

ll n, a, b, l, r, per;
set<pair<ll, ll> > segments, newSegments;

ll gcd(ll x, ll y) {
    if (y == 0)
    {
        return x;
    }
    return gcd(y, x % y);
}

void addSegment(ll sta, ll fin) {
    auto startPos = segments.upper_bound({sta, per});
    if (startPos == segments.begin())
    {
        for (auto i = segments.begin(); i != segments.end(); )
        {
            if (i->first <= fin)
            {
                fin = max(fin, i->second);
                segments.erase(i++);
            }
            else
            {
                break;
            }
        }
        segments.insert({sta, fin});
        return;
    }
    startPos--;
    if (startPos->second >= sta)
    {
        sta = min(sta, startPos->first);
        fin = max(fin, startPos->second);
        segments.erase(startPos++);
    }
    else
    {
        startPos++;
    }
      
    for (auto i = startPos; i != segments.end(); )
    {
        if (i->first <= fin)
        {
            fin = max(fin, i->second);
            segments.erase(i++);
        }
        else
        {
            break;
        }
    }
    segments.insert({sta, fin});     
}

int main() {
    cin >> n >> a >> b;
    per = gcd(a, b+1);
    ld A = a;
    ld B = b;
    ld t = A/(1000000000000000007) * B;
    if (t > per)
    {
        per = 1000000000000000007;
    }
    else
    {
        per = round(A/per * B);
    }
    cin >> l >> r;
    if (r-l+1 >= per)
    {
        cout << per << "\n";
        return 0;
    }
    l = l%per;
    r = r%per;
    if(l <= r) {
        segments.insert({l, r});
    }
    else
    {
        segments.insert({0, r});
        segments.insert({l, per-1});
    }
    for (int i = 1; i < n; i++)
    {
        cin >> l >> r;
        if (r-l+1 >= per)
        {
        cout << per << "\n";
        return 0;
        }
        l = l%per;
        r = r%per;
        if (l <= r)
        {
            addSegment(l, r);
        }
        else
        {
            addSegment(0, r);
            addSegment(l, per-1);
        }
    }
    ll runningTotal = 0;
    for (auto i : segments)
    {
        runningTotal += i.second - i.first + 1;
    }
    cout << runningTotal << "\n";
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	34 ms	1400 KB	Output is correct
3	Correct	33 ms	1272 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	1 ms	256 KB	Output is correct
9	Correct	1 ms	256 KB	Output is correct
10	Correct	1 ms	256 KB	Output is correct
11	Correct	1 ms	256 KB	Output is correct
12	Correct	0 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	35 ms	1272 KB	Output is correct
17	Correct	357 ms	8312 KB	Output is correct
18	Correct	1 ms	256 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	0 ms	256 KB	Output is correct
3	Correct	0 ms	256 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	2164 ms	416 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	3454 ms	64820 KB	Output is correct
3	Correct	3453 ms	64872 KB	Output is correct
4	Correct	3471 ms	64864 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	3454 ms	64820 KB	Output is correct
3	Correct	3453 ms	64872 KB	Output is correct
4	Correct	3471 ms	64864 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	3408 ms	64940 KB	Output is correct
7	Correct	3442 ms	64868 KB	Output is correct
8	Correct	3440 ms	64264 KB	Output is correct
9	Correct	3505 ms	64388 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	3454 ms	64820 KB	Output is correct
3	Correct	3453 ms	64872 KB	Output is correct
4	Correct	3471 ms	64864 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	333 ms	7800 KB	Output is correct
7	Correct	327 ms	7932 KB	Output is correct
8	Correct	331 ms	7928 KB	Output is correct
9	Correct	348 ms	7800 KB	Output is correct
10	Correct	339 ms	7952 KB	Output is correct
11	Correct	329 ms	7800 KB	Output is correct
12	Correct	338 ms	7800 KB	Output is correct
13	Correct	339 ms	7800 KB	Output is correct
14	Correct	332 ms	7848 KB	Output is correct
15	Correct	349 ms	7800 KB	Output is correct
16	Correct	341 ms	7928 KB	Output is correct
17	Correct	334 ms	7800 KB	Output is correct
18	Correct	3475 ms	64292 KB	Output is correct
19	Correct	3382 ms	64392 KB	Output is correct
20	Correct	3483 ms	64244 KB	Output is correct
21	Correct	335 ms	7928 KB	Output is correct
22	Correct	338 ms	7800 KB	Output is correct
23	Correct	1022 ms	1644 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	337 ms	7800 KB	Output is correct
3	Correct	339 ms	7800 KB	Output is correct
4	Correct	3426 ms	64396 KB	Output is correct
5	Correct	339 ms	7800 KB	Output is correct
6	Correct	343 ms	7940 KB	Output is correct
7	Correct	338 ms	7812 KB	Output is correct
8	Correct	338 ms	7800 KB	Output is correct
9	Correct	335 ms	7804 KB	Output is correct
10	Correct	339 ms	7800 KB	Output is correct
11	Correct	347 ms	7800 KB	Output is correct
12	Correct	355 ms	7928 KB	Output is correct
13	Correct	346 ms	7828 KB	Output is correct
14	Correct	3475 ms	64164 KB	Output is correct
15	Correct	350 ms	7160 KB	Output is correct
16	Correct	3391 ms	64024 KB	Output is correct
17	Correct	3389 ms	64020 KB	Output is correct
18	Correct	1 ms	256 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	34 ms	1400 KB	Output is correct
3	Correct	33 ms	1272 KB	Output is correct
4	Correct	1 ms	256 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	0 ms	256 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	1 ms	256 KB	Output is correct
9	Correct	1 ms	256 KB	Output is correct
10	Correct	1 ms	256 KB	Output is correct
11	Correct	1 ms	256 KB	Output is correct
12	Correct	0 ms	256 KB	Output is correct
13	Correct	1 ms	256 KB	Output is correct
14	Correct	1 ms	256 KB	Output is correct
15	Correct	1 ms	256 KB	Output is correct
16	Correct	35 ms	1272 KB	Output is correct
17	Correct	357 ms	8312 KB	Output is correct
18	Correct	1 ms	256 KB	Output is correct
19	Correct	1 ms	256 KB	Output is correct
20	Correct	0 ms	256 KB	Output is correct
21	Correct	0 ms	256 KB	Output is correct
22	Correct	1 ms	256 KB	Output is correct
23	Correct	1 ms	256 KB	Output is correct
24	Correct	1 ms	256 KB	Output is correct
25	Correct	5 ms	384 KB	Output is correct
26	Correct	4 ms	384 KB	Output is correct
27	Correct	4 ms	384 KB	Output is correct
28	Correct	2164 ms	416 KB	Output is correct
29	Correct	1 ms	256 KB	Output is correct
30	Correct	3454 ms	64820 KB	Output is correct
31	Correct	3453 ms	64872 KB	Output is correct
32	Correct	3471 ms	64864 KB	Output is correct
33	Correct	0 ms	256 KB	Output is correct
34	Correct	3408 ms	64940 KB	Output is correct
35	Correct	3442 ms	64868 KB	Output is correct
36	Correct	3440 ms	64264 KB	Output is correct
37	Correct	3505 ms	64388 KB	Output is correct
38	Correct	1 ms	256 KB	Output is correct
39	Correct	333 ms	7800 KB	Output is correct
40	Correct	327 ms	7932 KB	Output is correct
41	Correct	331 ms	7928 KB	Output is correct
42	Correct	348 ms	7800 KB	Output is correct
43	Correct	339 ms	7952 KB	Output is correct
44	Correct	329 ms	7800 KB	Output is correct
45	Correct	338 ms	7800 KB	Output is correct
46	Correct	339 ms	7800 KB	Output is correct
47	Correct	332 ms	7848 KB	Output is correct
48	Correct	349 ms	7800 KB	Output is correct
49	Correct	341 ms	7928 KB	Output is correct
50	Correct	334 ms	7800 KB	Output is correct
51	Correct	3475 ms	64292 KB	Output is correct
52	Correct	3382 ms	64392 KB	Output is correct
53	Correct	3483 ms	64244 KB	Output is correct
54	Correct	335 ms	7928 KB	Output is correct
55	Correct	338 ms	7800 KB	Output is correct
56	Correct	1022 ms	1644 KB	Output is correct
57	Correct	0 ms	256 KB	Output is correct
58	Correct	337 ms	7800 KB	Output is correct
59	Correct	339 ms	7800 KB	Output is correct
60	Correct	3426 ms	64396 KB	Output is correct
61	Correct	339 ms	7800 KB	Output is correct
62	Correct	343 ms	7940 KB	Output is correct
63	Correct	338 ms	7812 KB	Output is correct
64	Correct	338 ms	7800 KB	Output is correct
65	Correct	335 ms	7804 KB	Output is correct
66	Correct	339 ms	7800 KB	Output is correct
67	Correct	347 ms	7800 KB	Output is correct
68	Correct	355 ms	7928 KB	Output is correct
69	Correct	346 ms	7828 KB	Output is correct
70	Correct	3475 ms	64164 KB	Output is correct
71	Correct	350 ms	7160 KB	Output is correct
72	Correct	3391 ms	64024 KB	Output is correct
73	Correct	3389 ms	64020 KB	Output is correct
74	Correct	1 ms	256 KB	Output is correct
75	Correct	1 ms	256 KB	Output is correct
76	Correct	0 ms	256 KB	Output is correct
77	Correct	1 ms	256 KB	Output is correct
78	Correct	1 ms	256 KB	Output is correct
79	Correct	33 ms	1280 KB	Output is correct
80	Correct	3464 ms	64048 KB	Output is correct
81	Correct	3412 ms	63988 KB	Output is correct
82	Correct	3546 ms	63984 KB	Output is correct
83	Correct	3633 ms	63864 KB	Output is correct
84	Correct	3551 ms	63876 KB	Output is correct
85	Correct	3436 ms	63824 KB	Output is correct
86	Correct	1025 ms	1032 KB	Output is correct
87	Correct	1 ms	256 KB	Output is correct

Submission #284546

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