Submission #252085

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
252085	2020-07-24T06:10:44 Z	jeqcho	Strange Device (APIO19_strange_device)	C++17	100 / 100	1146 ms	148336 KB

strange_device

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<set>
using namespace std;
#define ll long long
#define MAX 1000100
inline ll read()
{
    ll x=0;bool t=false;char ch=getchar();
    while((ch<'0'||ch>'9')&&ch!='-')ch=getchar();
    if(ch=='-')t=true,ch=getchar();
    while(ch<='9'&&ch>='0')x=x*10+ch-48,ch=getchar();
    return t?-x:x;
}
ll n,sum,l[MAX],r[MAX],A,B,d,T,ans;
multiset<pair<ll,int> >S;
#define mp make_pair
void Add(ll l,ll r){S.insert(mp(l,1));S.insert(mp(r+1,-1));}
int main()
{
    n=read();A=read();B=read();d=__gcd(A,B+1);
    for(int i=1;i<=n;++i)l[i]=read(),r[i]=read(),sum+=r[i]-l[i]+1;
    if(1.0*A*B/d>1e18){printf("%lld\n",sum);return 0;}
    T=A/d*B;
    for(int i=1;i<=n;++i)
    {
        if(r[i]-l[i]+1>=T){printf("%lld\n",T);return 0;}
        if(l[i]/T!=r[i]/T)Add(l[i]%T,T-1),Add(0,r[i]%T);
        else Add(l[i]%T,r[i]%T);
    }
    S.insert(mp(T,0));
    ll lst=-1,c=0;
    for(auto a:S)
    {
        if(c>0)ans+=a.first-lst;
        c+=a.second;
        lst=a.first;
    }
    printf("%lld\n",ans);
    return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	9 ms	1792 KB	Output is correct
3	Correct	9 ms	1792 KB	Output is correct
4	Correct	0 ms	256 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	0 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	8 ms	1792 KB	Output is correct
17	Correct	99 ms	14468 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	384 KB	Output is correct
2	Correct	256 KB	Output is correct
3	Correct	384 KB	Output is correct
4	Correct	384 KB	Output is correct
5	Correct	384 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	512 KB	Output is correct
3	Correct	1 ms	512 KB	Output is correct
4	Correct	1 ms	512 KB	Output is correct
5	Correct	1061 ms	141268 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1020 ms	141228 KB	Output is correct
3	Correct	1060 ms	141304 KB	Output is correct
4	Correct	1052 ms	141260 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1020 ms	141228 KB	Output is correct
3	Correct	1060 ms	141304 KB	Output is correct
4	Correct	1052 ms	141260 KB	Output is correct
5	Correct	0 ms	256 KB	Output is correct
6	Correct	1064 ms	141300 KB	Output is correct
7	Correct	1049 ms	141492 KB	Output is correct
8	Correct	1016 ms	141296 KB	Output is correct
9	Correct	1092 ms	141160 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1020 ms	141228 KB	Output is correct
3	Correct	1060 ms	141304 KB	Output is correct
4	Correct	1052 ms	141260 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	86 ms	14456 KB	Output is correct
7	Correct	90 ms	14456 KB	Output is correct
8	Correct	92 ms	14460 KB	Output is correct
9	Correct	99 ms	14456 KB	Output is correct
10	Correct	87 ms	14460 KB	Output is correct
11	Correct	100 ms	14456 KB	Output is correct
12	Correct	98 ms	14456 KB	Output is correct
13	Correct	101 ms	14476 KB	Output is correct
14	Correct	88 ms	14456 KB	Output is correct
15	Correct	110 ms	14456 KB	Output is correct
16	Correct	105 ms	14456 KB	Output is correct
17	Correct	97 ms	14456 KB	Output is correct
18	Correct	1042 ms	141208 KB	Output is correct
19	Correct	1100 ms	141176 KB	Output is correct
20	Correct	1106 ms	141148 KB	Output is correct
21	Correct	97 ms	14456 KB	Output is correct
22	Correct	94 ms	14456 KB	Output is correct
23	Correct	395 ms	48376 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	104 ms	14456 KB	Output is correct
3	Correct	109 ms	14456 KB	Output is correct
4	Correct	1063 ms	141944 KB	Output is correct
5	Correct	108 ms	14456 KB	Output is correct
6	Correct	117 ms	14456 KB	Output is correct
7	Correct	106 ms	14456 KB	Output is correct
8	Correct	102 ms	14460 KB	Output is correct
9	Correct	100 ms	14584 KB	Output is correct
10	Correct	100 ms	14456 KB	Output is correct
11	Correct	98 ms	14456 KB	Output is correct
12	Correct	100 ms	14380 KB	Output is correct
13	Correct	117 ms	14456 KB	Output is correct
14	Correct	1140 ms	141672 KB	Output is correct
15	Correct	95 ms	14456 KB	Output is correct
16	Correct	1022 ms	141316 KB	Output is correct
17	Correct	1012 ms	141272 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	256 KB	Output is correct
2	Correct	9 ms	1792 KB	Output is correct
3	Correct	9 ms	1792 KB	Output is correct
4	Correct	0 ms	256 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	0 ms	384 KB	Output is correct
15	Correct	0 ms	384 KB	Output is correct
16	Correct	8 ms	1792 KB	Output is correct
17	Correct	99 ms	14468 KB	Output is correct
18	Correct	0 ms	256 KB	Output is correct
19	Correct	0 ms	384 KB	Output is correct
20	Correct	0 ms	256 KB	Output is correct
21	Correct	0 ms	384 KB	Output is correct
22	Correct	0 ms	384 KB	Output is correct
23	Correct	0 ms	384 KB	Output is correct
24	Correct	0 ms	384 KB	Output is correct
25	Correct	1 ms	512 KB	Output is correct
26	Correct	1 ms	512 KB	Output is correct
27	Correct	1 ms	512 KB	Output is correct
28	Correct	1061 ms	141268 KB	Output is correct
29	Correct	0 ms	384 KB	Output is correct
30	Correct	1020 ms	141228 KB	Output is correct
31	Correct	1060 ms	141304 KB	Output is correct
32	Correct	1052 ms	141260 KB	Output is correct
33	Correct	0 ms	256 KB	Output is correct
34	Correct	1064 ms	141300 KB	Output is correct
35	Correct	1049 ms	141492 KB	Output is correct
36	Correct	1016 ms	141296 KB	Output is correct
37	Correct	1092 ms	141160 KB	Output is correct
38	Correct	0 ms	384 KB	Output is correct
39	Correct	86 ms	14456 KB	Output is correct
40	Correct	90 ms	14456 KB	Output is correct
41	Correct	92 ms	14460 KB	Output is correct
42	Correct	99 ms	14456 KB	Output is correct
43	Correct	87 ms	14460 KB	Output is correct
44	Correct	100 ms	14456 KB	Output is correct
45	Correct	98 ms	14456 KB	Output is correct
46	Correct	101 ms	14476 KB	Output is correct
47	Correct	88 ms	14456 KB	Output is correct
48	Correct	110 ms	14456 KB	Output is correct
49	Correct	105 ms	14456 KB	Output is correct
50	Correct	97 ms	14456 KB	Output is correct
51	Correct	1042 ms	141208 KB	Output is correct
52	Correct	1100 ms	141176 KB	Output is correct
53	Correct	1106 ms	141148 KB	Output is correct
54	Correct	97 ms	14456 KB	Output is correct
55	Correct	94 ms	14456 KB	Output is correct
56	Correct	395 ms	48376 KB	Output is correct
57	Correct	0 ms	384 KB	Output is correct
58	Correct	104 ms	14456 KB	Output is correct
59	Correct	109 ms	14456 KB	Output is correct
60	Correct	1063 ms	141944 KB	Output is correct
61	Correct	108 ms	14456 KB	Output is correct
62	Correct	117 ms	14456 KB	Output is correct
63	Correct	106 ms	14456 KB	Output is correct
64	Correct	102 ms	14460 KB	Output is correct
65	Correct	100 ms	14584 KB	Output is correct
66	Correct	100 ms	14456 KB	Output is correct
67	Correct	98 ms	14456 KB	Output is correct
68	Correct	100 ms	14380 KB	Output is correct
69	Correct	117 ms	14456 KB	Output is correct
70	Correct	1140 ms	141672 KB	Output is correct
71	Correct	95 ms	14456 KB	Output is correct
72	Correct	1022 ms	141316 KB	Output is correct
73	Correct	1012 ms	141272 KB	Output is correct
74	Correct	1 ms	384 KB	Output is correct
75	Correct	1 ms	384 KB	Output is correct
76	Correct	0 ms	256 KB	Output is correct
77	Correct	1 ms	384 KB	Output is correct
78	Correct	0 ms	384 KB	Output is correct
79	Correct	10 ms	2048 KB	Output is correct
80	Correct	1082 ms	148164 KB	Output is correct
81	Correct	1107 ms	148276 KB	Output is correct
82	Correct	1085 ms	148336 KB	Output is correct
83	Correct	1146 ms	148288 KB	Output is correct
84	Correct	1137 ms	148216 KB	Output is correct
85	Correct	1052 ms	148300 KB	Output is correct
86	Correct	391 ms	55284 KB	Output is correct
87	Correct	1 ms	384 KB	Output is correct

Submission #252085

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