Submission #729962

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
729962	2023-04-24T23:55:48 Z	MtSaka	Strange Device (APIO19_strange_device)	C++17	100 / 100	670 ms	69004 KB

strange_device

#include<bits/stdc++.h>
#define overload(a,b,c,d,...) d
#define rep1(a) for(ll _=0;_<(ll)a;++_)
#define rep2(i,a) for(ll i=0;i<(ll)a;++i)
#define rep3(i,a,b) for(ll i=a;i<(ll)b;++i)
#define rep(...) overload(__VA_ARGS__,rep3,rep2,rep1)(__VA_ARGS__)
#define rrep1(i,a) for(ll i=(ll)a-1;i>=0;--i)
#define rrep2(i,a,b) for(ll i=(ll)b-1;i>=(ll)a;--i)
#define rrep(...) overload(__VA_ARGS__,rrep2,rrep1)(__VA_ARGS__)
#define all(a) a.begin(),a.end()
#define lb(v,x) lower_bound(all(v),x);
#define ub(v,x) upper_bound(all(v),x);
using namespace std;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
template<typename T,typename U>
inline bool chmin(T&a,const U&b){return (a>b?a=b,true:false);}
template<typename T,typename U>
inline bool chmax(T&a,const U&b){return (a<b?a=b,true:false);}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;cin>>n;
    ll a,b;cin>>a>>b;
    ll g=gcd(a,b+1);
    if((ld)(1e18)/(ld)b<a/g){
        ll ans=0;
        rep(i,n){
            ll l,r;cin>>l>>r;
            ans+=r-l+1;
        }
        cout<<ans<<endl;return 0;
    }
    vector<pair<ll,ll>>v;
    ll md=a/g*b;
    rep(i,n){
        ll l,r;cin>>l>>r;
        if(r-l+1>=md){
            cout<<md<<endl;return 0;
        }
        l%=md,r%=md;
        if(l>r){
            v.emplace_back(l,1);
            v.emplace_back(md,-1);
            v.emplace_back(0,1);
            v.emplace_back(r+1,-1);
        }
        else{
            v.emplace_back(l,1);
            v.emplace_back(r+1,-1);
        }
    }
    sort(all(v));
    ll ans=0,cnt=1;
    rep(i,1,v.size()){
        if(cnt>0){
            ans+=v[i].first-v[i-1].first;
        }
        cnt+=v[i].second;
    }
    cout<<ans<<endl;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	6 ms	984 KB	Output is correct
3	Correct	5 ms	856 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	212 KB	Output is correct
7	Correct	0 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	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	320 KB	Output is correct
15	Correct	1 ms	320 KB	Output is correct
16	Correct	6 ms	1240 KB	Output is correct
17	Correct	54 ms	7288 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	0 ms	212 KB	Output is correct
4	Correct	0 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	2 ms	340 KB	Output is correct
5	Correct	336 ms	33360 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	475 ms	33256 KB	Output is correct
3	Correct	570 ms	68788 KB	Output is correct
4	Correct	488 ms	68988 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	475 ms	33256 KB	Output is correct
3	Correct	570 ms	68788 KB	Output is correct
4	Correct	488 ms	68988 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	514 ms	68900 KB	Output is correct
7	Correct	528 ms	68992 KB	Output is correct
8	Correct	493 ms	68880 KB	Output is correct
9	Correct	602 ms	68868 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	475 ms	33256 KB	Output is correct
3	Correct	570 ms	68788 KB	Output is correct
4	Correct	488 ms	68988 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	50 ms	7184 KB	Output is correct
7	Correct	52 ms	7272 KB	Output is correct
8	Correct	47 ms	7296 KB	Output is correct
9	Correct	48 ms	7252 KB	Output is correct
10	Correct	47 ms	7188 KB	Output is correct
11	Correct	49 ms	7224 KB	Output is correct
12	Correct	57 ms	7344 KB	Output is correct
13	Correct	57 ms	7296 KB	Output is correct
14	Correct	47 ms	7228 KB	Output is correct
15	Correct	52 ms	7236 KB	Output is correct
16	Correct	54 ms	7212 KB	Output is correct
17	Correct	47 ms	7188 KB	Output is correct
18	Correct	513 ms	68856 KB	Output is correct
19	Correct	460 ms	68884 KB	Output is correct
20	Correct	608 ms	68868 KB	Output is correct
21	Correct	68 ms	7288 KB	Output is correct
22	Correct	45 ms	7276 KB	Output is correct
23	Correct	138 ms	26636 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	48 ms	4488 KB	Output is correct
3	Correct	51 ms	4556 KB	Output is correct
4	Correct	590 ms	33196 KB	Output is correct
5	Correct	48 ms	4544 KB	Output is correct
6	Correct	53 ms	4460 KB	Output is correct
7	Correct	60 ms	4548 KB	Output is correct
8	Correct	55 ms	4468 KB	Output is correct
9	Correct	48 ms	4556 KB	Output is correct
10	Correct	53 ms	4556 KB	Output is correct
11	Correct	51 ms	4448 KB	Output is correct
12	Correct	44 ms	4476 KB	Output is correct
13	Correct	58 ms	4520 KB	Output is correct
14	Correct	559 ms	33264 KB	Output is correct
15	Correct	61 ms	4488 KB	Output is correct
16	Correct	464 ms	33272 KB	Output is correct
17	Correct	496 ms	33176 KB	Output is correct
18	Correct	0 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	6 ms	984 KB	Output is correct
3	Correct	5 ms	856 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	212 KB	Output is correct
7	Correct	0 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	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	320 KB	Output is correct
15	Correct	1 ms	320 KB	Output is correct
16	Correct	6 ms	1240 KB	Output is correct
17	Correct	54 ms	7288 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	0 ms	212 KB	Output is correct
22	Correct	0 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	2 ms	340 KB	Output is correct
28	Correct	336 ms	33360 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	475 ms	33256 KB	Output is correct
31	Correct	570 ms	68788 KB	Output is correct
32	Correct	488 ms	68988 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	514 ms	68900 KB	Output is correct
35	Correct	528 ms	68992 KB	Output is correct
36	Correct	493 ms	68880 KB	Output is correct
37	Correct	602 ms	68868 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	50 ms	7184 KB	Output is correct
40	Correct	52 ms	7272 KB	Output is correct
41	Correct	47 ms	7296 KB	Output is correct
42	Correct	48 ms	7252 KB	Output is correct
43	Correct	47 ms	7188 KB	Output is correct
44	Correct	49 ms	7224 KB	Output is correct
45	Correct	57 ms	7344 KB	Output is correct
46	Correct	57 ms	7296 KB	Output is correct
47	Correct	47 ms	7228 KB	Output is correct
48	Correct	52 ms	7236 KB	Output is correct
49	Correct	54 ms	7212 KB	Output is correct
50	Correct	47 ms	7188 KB	Output is correct
51	Correct	513 ms	68856 KB	Output is correct
52	Correct	460 ms	68884 KB	Output is correct
53	Correct	608 ms	68868 KB	Output is correct
54	Correct	68 ms	7288 KB	Output is correct
55	Correct	45 ms	7276 KB	Output is correct
56	Correct	138 ms	26636 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	48 ms	4488 KB	Output is correct
59	Correct	51 ms	4556 KB	Output is correct
60	Correct	590 ms	33196 KB	Output is correct
61	Correct	48 ms	4544 KB	Output is correct
62	Correct	53 ms	4460 KB	Output is correct
63	Correct	60 ms	4548 KB	Output is correct
64	Correct	55 ms	4468 KB	Output is correct
65	Correct	48 ms	4556 KB	Output is correct
66	Correct	53 ms	4556 KB	Output is correct
67	Correct	51 ms	4448 KB	Output is correct
68	Correct	44 ms	4476 KB	Output is correct
69	Correct	58 ms	4520 KB	Output is correct
70	Correct	559 ms	33264 KB	Output is correct
71	Correct	61 ms	4488 KB	Output is correct
72	Correct	464 ms	33272 KB	Output is correct
73	Correct	496 ms	33176 KB	Output is correct
74	Correct	0 ms	212 KB	Output is correct
75	Correct	1 ms	320 KB	Output is correct
76	Correct	1 ms	212 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	212 KB	Output is correct
79	Correct	5 ms	1316 KB	Output is correct
80	Correct	670 ms	68900 KB	Output is correct
81	Correct	621 ms	69004 KB	Output is correct
82	Correct	574 ms	68880 KB	Output is correct
83	Correct	606 ms	69004 KB	Output is correct
84	Correct	593 ms	69004 KB	Output is correct
85	Correct	569 ms	68768 KB	Output is correct
86	Correct	144 ms	26712 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #729962

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