Submission #1044642

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1044642	2024-08-05T11:59:10 Z	vjudge1	Strange Device (APIO19_strange_device)	C++17	100 / 100	257 ms	37560 KB

strange_device

#pragma GCC optimize("unroll-loops,Ofast,O3")
#include <bits/stdc++.h>
#define pb push_back
#define mp make_pair
#define spc << " " <<
#define endl "\n"
#define all(x) x.begin(), x.end()
#define int long long
#define ii pair<long long,int>
#define vi vector<int>
#define vii vector<ii>
#define st first
#define nd second
#define inf 1e15
#define MOD 1000000007
#define MX 200005
using namespace std;



void solve(){
    int n,A,B; cin >> n >> A >> B;
    vii seg;
    A = A/__gcd(B+1, A);
    if(sqrt(A)*sqrt(B)>=1e9){
        int ans=0;
        for(int i=1; i<=n; i++){
            int l,r; cin >> l >> r;
            ans+=r-l+1;
        }
        cout << ans << endl;
        return;
    }
    int wow = A*B;
    //cerr << wow << endl;
    for(int i=1; i<=n; i++){
        int l,r; cin >> l >> r;
        if(r-l+1>=wow){
            cout << wow << endl;
            return;
        }
        l%=wow; r%=wow;
        if(r>=l) seg.pb({l,r});
        else{
            seg.pb({0,r});
            seg.pb({l, wow-1});
        }
    }
    sort(all(seg));
    int ans=0, cur=-1;
    for(auto p:seg){
        //cerr << p.st spc p.nd << endl;
        ans += max((int)0, min(p.nd-p.st+1, p.nd-cur));
        cur = max(cur, p.nd);
    }
    cout << ans << endl;
}
 
 
signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);
    #ifdef Local
    freopen("in","r",stdin);
    freopen("out","w",stdout);
    #endif
 
    /*freopen("nondec.in","r",stdin);
    freopen("nondec.out","w",stdout);*/
 
    int t=1;
    //cin >> t;
    while(t--) solve();
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	2 ms	736 KB	Output is correct
3	Correct	3 ms	736 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	3 ms	736 KB	Output is correct
17	Correct	25 ms	2520 KB	Output is correct
18	Correct	0 ms	344 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	344 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	163 ms	17392 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	208 ms	17384 KB	Output is correct
3	Correct	209 ms	36280 KB	Output is correct
4	Correct	212 ms	37560 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	208 ms	17384 KB	Output is correct
3	Correct	209 ms	36280 KB	Output is correct
4	Correct	212 ms	37560 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	210 ms	36244 KB	Output is correct
7	Correct	213 ms	37264 KB	Output is correct
8	Correct	215 ms	37300 KB	Output is correct
9	Correct	236 ms	36788 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	208 ms	17384 KB	Output is correct
3	Correct	209 ms	36280 KB	Output is correct
4	Correct	212 ms	37560 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	21 ms	4568 KB	Output is correct
7	Correct	24 ms	4524 KB	Output is correct
8	Correct	23 ms	4568 KB	Output is correct
9	Correct	24 ms	4476 KB	Output is correct
10	Correct	21 ms	4460 KB	Output is correct
11	Correct	25 ms	4568 KB	Output is correct
12	Correct	21 ms	4556 KB	Output is correct
13	Correct	24 ms	4564 KB	Output is correct
14	Correct	22 ms	4568 KB	Output is correct
15	Correct	25 ms	4568 KB	Output is correct
16	Correct	24 ms	4568 KB	Output is correct
17	Correct	23 ms	4568 KB	Output is correct
18	Correct	217 ms	35788 KB	Output is correct
19	Correct	211 ms	37556 KB	Output is correct
20	Correct	232 ms	35700 KB	Output is correct
21	Correct	24 ms	4568 KB	Output is correct
22	Correct	20 ms	4692 KB	Output is correct
23	Correct	64 ms	15296 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	29 ms	2520 KB	Output is correct
3	Correct	23 ms	2520 KB	Output is correct
4	Correct	257 ms	36036 KB	Output is correct
5	Correct	31 ms	4568 KB	Output is correct
6	Correct	25 ms	4664 KB	Output is correct
7	Correct	23 ms	4568 KB	Output is correct
8	Correct	25 ms	4564 KB	Output is correct
9	Correct	23 ms	4568 KB	Output is correct
10	Correct	24 ms	4568 KB	Output is correct
11	Correct	23 ms	4568 KB	Output is correct
12	Correct	21 ms	4552 KB	Output is correct
13	Correct	23 ms	4568 KB	Output is correct
14	Correct	242 ms	37044 KB	Output is correct
15	Correct	23 ms	4564 KB	Output is correct
16	Correct	212 ms	36564 KB	Output is correct
17	Correct	212 ms	36112 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	2 ms	736 KB	Output is correct
3	Correct	3 ms	736 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	3 ms	736 KB	Output is correct
17	Correct	25 ms	2520 KB	Output is correct
18	Correct	0 ms	344 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	344 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	163 ms	17392 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	208 ms	17384 KB	Output is correct
31	Correct	209 ms	36280 KB	Output is correct
32	Correct	212 ms	37560 KB	Output is correct
33	Correct	0 ms	344 KB	Output is correct
34	Correct	210 ms	36244 KB	Output is correct
35	Correct	213 ms	37264 KB	Output is correct
36	Correct	215 ms	37300 KB	Output is correct
37	Correct	236 ms	36788 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	21 ms	4568 KB	Output is correct
40	Correct	24 ms	4524 KB	Output is correct
41	Correct	23 ms	4568 KB	Output is correct
42	Correct	24 ms	4476 KB	Output is correct
43	Correct	21 ms	4460 KB	Output is correct
44	Correct	25 ms	4568 KB	Output is correct
45	Correct	21 ms	4556 KB	Output is correct
46	Correct	24 ms	4564 KB	Output is correct
47	Correct	22 ms	4568 KB	Output is correct
48	Correct	25 ms	4568 KB	Output is correct
49	Correct	24 ms	4568 KB	Output is correct
50	Correct	23 ms	4568 KB	Output is correct
51	Correct	217 ms	35788 KB	Output is correct
52	Correct	211 ms	37556 KB	Output is correct
53	Correct	232 ms	35700 KB	Output is correct
54	Correct	24 ms	4568 KB	Output is correct
55	Correct	20 ms	4692 KB	Output is correct
56	Correct	64 ms	15296 KB	Output is correct
57	Correct	1 ms	348 KB	Output is correct
58	Correct	29 ms	2520 KB	Output is correct
59	Correct	23 ms	2520 KB	Output is correct
60	Correct	257 ms	36036 KB	Output is correct
61	Correct	31 ms	4568 KB	Output is correct
62	Correct	25 ms	4664 KB	Output is correct
63	Correct	23 ms	4568 KB	Output is correct
64	Correct	25 ms	4564 KB	Output is correct
65	Correct	23 ms	4568 KB	Output is correct
66	Correct	24 ms	4568 KB	Output is correct
67	Correct	23 ms	4568 KB	Output is correct
68	Correct	21 ms	4552 KB	Output is correct
69	Correct	23 ms	4568 KB	Output is correct
70	Correct	242 ms	37044 KB	Output is correct
71	Correct	23 ms	4564 KB	Output is correct
72	Correct	212 ms	36564 KB	Output is correct
73	Correct	212 ms	36112 KB	Output is correct
74	Correct	1 ms	344 KB	Output is correct
75	Correct	0 ms	344 KB	Output is correct
76	Correct	0 ms	348 KB	Output is correct
77	Correct	0 ms	348 KB	Output is correct
78	Correct	0 ms	348 KB	Output is correct
79	Correct	3 ms	1192 KB	Output is correct
80	Correct	240 ms	36024 KB	Output is correct
81	Correct	248 ms	36608 KB	Output is correct
82	Correct	224 ms	17336 KB	Output is correct
83	Correct	226 ms	17860 KB	Output is correct
84	Correct	235 ms	18100 KB	Output is correct
85	Correct	225 ms	17588 KB	Output is correct
86	Correct	63 ms	8728 KB	Output is correct
87	Correct	0 ms	348 KB	Output is correct

Submission #1044642

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