Submission #663121

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
663121	2022-11-26T15:56:43 Z	Ai7081	Strange Device (APIO19_strange_device)	C++17	65 / 100	434 ms	16944 KB

strange_device

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

const ll inf = 5e18;

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

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

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n >> a >> b;
    a/=gcd(a,b+1);
    loop = (inf/a<=b ? inf : a*b);
    while (n--) {
        cin >> l >> r, l%=loop, r%=loop;
        if (l>r) v.push_back({0,r}), v.push_back({l,loop-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	628 KB	Output is correct
3	Correct	4 ms	612 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 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	1 ms	212 KB	Output is correct
12	Correct	0 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	4 ms	600 KB	Output is correct
17	Correct	47 ms	2512 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	276 ms	16784 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	406 ms	16832 KB	Output is correct
3	Correct	366 ms	16816 KB	Output is correct
4	Correct	354 ms	16800 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	406 ms	16832 KB	Output is correct
3	Correct	366 ms	16816 KB	Output is correct
4	Correct	354 ms	16800 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	362 ms	16776 KB	Output is correct
7	Correct	385 ms	16804 KB	Output is correct
8	Correct	380 ms	16796 KB	Output is correct
9	Correct	401 ms	16944 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	406 ms	16832 KB	Output is correct
3	Correct	366 ms	16816 KB	Output is correct
4	Correct	354 ms	16800 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	46 ms	2500 KB	Output is correct
7	Correct	50 ms	2404 KB	Output is correct
8	Correct	47 ms	2428 KB	Output is correct
9	Correct	36 ms	2376 KB	Output is correct
10	Correct	37 ms	2428 KB	Output is correct
11	Correct	39 ms	2512 KB	Output is correct
12	Correct	37 ms	2468 KB	Output is correct
13	Correct	38 ms	2452 KB	Output is correct
14	Correct	37 ms	2404 KB	Output is correct
15	Correct	39 ms	2416 KB	Output is correct
16	Correct	39 ms	2512 KB	Output is correct
17	Correct	39 ms	2428 KB	Output is correct
18	Correct	389 ms	16848 KB	Output is correct
19	Correct	363 ms	16812 KB	Output is correct
20	Correct	418 ms	16884 KB	Output is correct
21	Correct	39 ms	2512 KB	Output is correct
22	Correct	35 ms	2512 KB	Output is correct
23	Correct	115 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	46 ms	2508 KB	Output is correct
3	Correct	40 ms	2520 KB	Output is correct
4	Correct	434 ms	16812 KB	Output is correct
5	Correct	39 ms	2512 KB	Output is correct
6	Correct	39 ms	2424 KB	Output is correct
7	Correct	43 ms	2520 KB	Output is correct
8	Correct	46 ms	2500 KB	Output is correct
9	Correct	38 ms	2416 KB	Output is correct
10	Correct	40 ms	2508 KB	Output is correct
11	Correct	43 ms	2404 KB	Output is correct
12	Correct	34 ms	2376 KB	Output is correct
13	Correct	38 ms	2492 KB	Output is correct
14	Correct	421 ms	16812 KB	Output is correct
15	Correct	39 ms	2512 KB	Output is correct
16	Correct	361 ms	16800 KB	Output is correct
17	Correct	420 ms	16924 KB	Output is correct
18	Correct	1 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	628 KB	Output is correct
3	Correct	4 ms	612 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 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	1 ms	212 KB	Output is correct
12	Correct	0 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	4 ms	600 KB	Output is correct
17	Correct	47 ms	2512 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 #663121

Compilation message