Submission #781542

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
781542	2023-07-13T07:47:34 Z	devariaota	Strange Device (APIO19_strange_device)	C++17	100 / 100	453 ms	93420 KB

strange_device

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define ld long double
#define fi first
#define se second

ll l[1000005], r[1000005];
vector<pair<ll, ll>> v, ans;

int main() { 
    ios_base::sync_with_stdio(false); cin.tie(NULL);
    /*
    t = xb;
    xb + x = y * a
    x * (b + 1) = y * a
    x = lcm(b + 1, a) / (b + 1)
    a/gcd(b + 1, a) = lcm(b + 1, a) / (b + 1);
    x = a/gcd(b + 1, a)
    banyaknya possibility = x * b -> x = a / gcd(b + 1, a);
    x * b >= r
    b / x
    */
    int n;
    ll a, b;
    cin >> n >> a >> b;
    ll x = a / gcd(b + 1, a), sum = 0, ans1 = 0;
    for (int i = 1; i <= n; i++) {
        cin >> l[i] >> r[i];
        sum += r[i] - l[i] + 1;
    }
    if ((r[n] - 1) / x < b) {
        cout << sum << "\n";
        return 0;
    }
    for (int i = 1; i <= n; i++) {
        if (r[i] - l[i] + 1 >= x * b) {
            cout << x * b;
            return 0;
        }
        l[i] %= (x * b), r[i] %= (x * b);
        if (l[i] <= r[i]) v.push_back({l[i], r[i]});
        else v.push_back({l[i], x * b - 1}), v.push_back({0, r[i]});
    }
    sort(v.begin(), v.end());
    for (int i = 0; i < (int)v.size(); i++) {
        if (ans.empty()) {
            ans.push_back(v[i]);
            continue;
        }
        if (v[i].fi > ans.back().se) ans.push_back(v[i]);
        else ans.back().se = max(ans.back().se, v[i].se);
    }  
    for (auto u : ans) ans1 += u.se - u.fi + 1;
    cout << ans1 << "\n";
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	4 ms	1368 KB	Output is correct
3	Correct	4 ms	1368 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	328 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 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	1 ms	212 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	4 ms	1368 KB	Output is correct
17	Correct	36 ms	7376 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 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	344 KB	Output is correct
5	Correct	225 ms	32996 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	337 ms	56480 KB	Output is correct
3	Correct	324 ms	56472 KB	Output is correct
4	Correct	408 ms	56240 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	337 ms	56480 KB	Output is correct
3	Correct	324 ms	56472 KB	Output is correct
4	Correct	408 ms	56240 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	343 ms	56292 KB	Output is correct
7	Correct	336 ms	56236 KB	Output is correct
8	Correct	329 ms	56328 KB	Output is correct
9	Correct	334 ms	56232 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	337 ms	56480 KB	Output is correct
3	Correct	324 ms	56472 KB	Output is correct
4	Correct	408 ms	56240 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct
6	Correct	33 ms	7612 KB	Output is correct
7	Correct	35 ms	7496 KB	Output is correct
8	Correct	34 ms	7572 KB	Output is correct
9	Correct	34 ms	7456 KB	Output is correct
10	Correct	33 ms	7524 KB	Output is correct
11	Correct	38 ms	7528 KB	Output is correct
12	Correct	31 ms	7500 KB	Output is correct
13	Correct	34 ms	7564 KB	Output is correct
14	Correct	35 ms	7456 KB	Output is correct
15	Correct	38 ms	7612 KB	Output is correct
16	Correct	41 ms	7568 KB	Output is correct
17	Correct	33 ms	7564 KB	Output is correct
18	Correct	318 ms	56196 KB	Output is correct
19	Correct	314 ms	56344 KB	Output is correct
20	Correct	336 ms	56256 KB	Output is correct
21	Correct	35 ms	7492 KB	Output is correct
22	Correct	31 ms	7564 KB	Output is correct
23	Correct	99 ms	15004 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	36 ms	7984 KB	Output is correct
3	Correct	34 ms	7500 KB	Output is correct
4	Correct	367 ms	56252 KB	Output is correct
5	Correct	44 ms	7556 KB	Output is correct
6	Correct	34 ms	7572 KB	Output is correct
7	Correct	33 ms	7500 KB	Output is correct
8	Correct	35 ms	7520 KB	Output is correct
9	Correct	34 ms	7508 KB	Output is correct
10	Correct	35 ms	7504 KB	Output is correct
11	Correct	35 ms	7532 KB	Output is correct
12	Correct	31 ms	7464 KB	Output is correct
13	Correct	43 ms	7668 KB	Output is correct
14	Correct	340 ms	56276 KB	Output is correct
15	Correct	35 ms	7348 KB	Output is correct
16	Correct	317 ms	56244 KB	Output is correct
17	Correct	322 ms	56184 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	4 ms	1368 KB	Output is correct
3	Correct	4 ms	1368 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	328 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 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	1 ms	212 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	4 ms	1368 KB	Output is correct
17	Correct	36 ms	7376 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	344 KB	Output is correct
28	Correct	225 ms	32996 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	337 ms	56480 KB	Output is correct
31	Correct	324 ms	56472 KB	Output is correct
32	Correct	408 ms	56240 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	343 ms	56292 KB	Output is correct
35	Correct	336 ms	56236 KB	Output is correct
36	Correct	329 ms	56328 KB	Output is correct
37	Correct	334 ms	56232 KB	Output is correct
38	Correct	1 ms	324 KB	Output is correct
39	Correct	33 ms	7612 KB	Output is correct
40	Correct	35 ms	7496 KB	Output is correct
41	Correct	34 ms	7572 KB	Output is correct
42	Correct	34 ms	7456 KB	Output is correct
43	Correct	33 ms	7524 KB	Output is correct
44	Correct	38 ms	7528 KB	Output is correct
45	Correct	31 ms	7500 KB	Output is correct
46	Correct	34 ms	7564 KB	Output is correct
47	Correct	35 ms	7456 KB	Output is correct
48	Correct	38 ms	7612 KB	Output is correct
49	Correct	41 ms	7568 KB	Output is correct
50	Correct	33 ms	7564 KB	Output is correct
51	Correct	318 ms	56196 KB	Output is correct
52	Correct	314 ms	56344 KB	Output is correct
53	Correct	336 ms	56256 KB	Output is correct
54	Correct	35 ms	7492 KB	Output is correct
55	Correct	31 ms	7564 KB	Output is correct
56	Correct	99 ms	15004 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	36 ms	7984 KB	Output is correct
59	Correct	34 ms	7500 KB	Output is correct
60	Correct	367 ms	56252 KB	Output is correct
61	Correct	44 ms	7556 KB	Output is correct
62	Correct	34 ms	7572 KB	Output is correct
63	Correct	33 ms	7500 KB	Output is correct
64	Correct	35 ms	7520 KB	Output is correct
65	Correct	34 ms	7508 KB	Output is correct
66	Correct	35 ms	7504 KB	Output is correct
67	Correct	35 ms	7532 KB	Output is correct
68	Correct	31 ms	7464 KB	Output is correct
69	Correct	43 ms	7668 KB	Output is correct
70	Correct	340 ms	56276 KB	Output is correct
71	Correct	35 ms	7348 KB	Output is correct
72	Correct	317 ms	56244 KB	Output is correct
73	Correct	322 ms	56184 KB	Output is correct
74	Correct	1 ms	212 KB	Output is correct
75	Correct	1 ms	324 KB	Output is correct
76	Correct	0 ms	340 KB	Output is correct
77	Correct	1 ms	332 KB	Output is correct
78	Correct	1 ms	212 KB	Output is correct
79	Correct	4 ms	1372 KB	Output is correct
80	Correct	397 ms	93372 KB	Output is correct
81	Correct	453 ms	93360 KB	Output is correct
82	Correct	379 ms	93380 KB	Output is correct
83	Correct	396 ms	93348 KB	Output is correct
84	Correct	352 ms	93408 KB	Output is correct
85	Correct	374 ms	93420 KB	Output is correct
86	Correct	106 ms	26552 KB	Output is correct
87	Correct	1 ms	328 KB	Output is correct

Submission #781542

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