Submission #1439860
Source Code Expand
#include<cstdio> #include<algorithm> using namespace std; long long n,a,b,s[200000],f[200000],g[200000],mod=1000000007; int main() { scanf("%lld%lld%lld",&n,&a,&b); if(a>b)swap(a,b); for(int i=1;i<=n;i++)scanf("%lld",s+i); s[0]=-b; f[0]=g[0]=1; for(int i=2;i<n;i++) if(s[i+1]-s[i-1]<a){puts("0");return 0;} long long sf=0,sg=0,pf=0,pg=0; for(int i=2;i<=n;i++) { for(;s[i]-s[pf]>=a;pf++)sf=(sf+f[pf])%mod; for(;s[i]-s[pg]>=b;pg++)sg=(sg+g[pg])%mod; f[i-1]=sg;g[i-1]=sf; if(s[i]-s[i-1]<b)sf=0,pf=i-1; if(s[i]-s[i-1]<a)sg=0,pg=i-1; //printf("sf=%lld,sg=%lld,pf=%lld,pg=%lld\n",sf,sg,pf,pg); } for(int i=pf;i<n;i++)sf=(sf+f[i])%mod; for(int i=pg;i<n;i++)sg=(sg+g[i])%mod; printf("%lld\n",(sf+sg)%mod); //printf("pf=%lld,pg=%lld\n",pf,pg); //for(int i=0;i<=n;i++)printf("(f,g)[%d]=%lld,%lld\n",i,f[i],g[i]); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | wangrq |
Language | C++14 (Clang 3.8.0) |
Score | 0 |
Code Size | 873 Byte |
Status | WA |
Exec Time | 23 ms |
Memory | 3584 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1100 | ||||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | s1.txt, s2.txt, s3.txt, s4.txt |
All | 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, 57.txt, 58.txt, 59.txt, 60.txt, 61.txt, 62.txt, 63.txt, 64.txt, s1.txt, s2.txt, s3.txt, s4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | WA | 22 ms | 3584 KB |
02.txt | WA | 21 ms | 3584 KB |
03.txt | AC | 21 ms | 3584 KB |
04.txt | WA | 20 ms | 3584 KB |
05.txt | AC | 21 ms | 3584 KB |
06.txt | WA | 20 ms | 3584 KB |
07.txt | WA | 21 ms | 3584 KB |
08.txt | WA | 21 ms | 3584 KB |
09.txt | WA | 22 ms | 3584 KB |
10.txt | WA | 22 ms | 3584 KB |
11.txt | AC | 21 ms | 3584 KB |
12.txt | WA | 22 ms | 3584 KB |
13.txt | WA | 22 ms | 3584 KB |
14.txt | WA | 21 ms | 3584 KB |
15.txt | WA | 20 ms | 3584 KB |
16.txt | AC | 16 ms | 3584 KB |
17.txt | AC | 18 ms | 3584 KB |
18.txt | AC | 19 ms | 3584 KB |
19.txt | AC | 17 ms | 3584 KB |
20.txt | WA | 17 ms | 3584 KB |
21.txt | WA | 17 ms | 3584 KB |
22.txt | AC | 18 ms | 3584 KB |
23.txt | WA | 15 ms | 3584 KB |
24.txt | WA | 16 ms | 3584 KB |
25.txt | WA | 19 ms | 3584 KB |
26.txt | WA | 19 ms | 3584 KB |
27.txt | WA | 19 ms | 3584 KB |
28.txt | WA | 19 ms | 3584 KB |
29.txt | AC | 18 ms | 3584 KB |
30.txt | WA | 18 ms | 3584 KB |
31.txt | AC | 18 ms | 3584 KB |
32.txt | WA | 18 ms | 3584 KB |
33.txt | WA | 19 ms | 3584 KB |
34.txt | WA | 16 ms | 3584 KB |
35.txt | AC | 20 ms | 3584 KB |
36.txt | WA | 15 ms | 3584 KB |
37.txt | AC | 15 ms | 3584 KB |
38.txt | AC | 15 ms | 3584 KB |
39.txt | AC | 23 ms | 3584 KB |
40.txt | AC | 14 ms | 3584 KB |
41.txt | AC | 15 ms | 3584 KB |
42.txt | AC | 12 ms | 3072 KB |
43.txt | WA | 22 ms | 3584 KB |
44.txt | WA | 21 ms | 3584 KB |
45.txt | WA | 22 ms | 3584 KB |
46.txt | WA | 22 ms | 3584 KB |
47.txt | AC | 19 ms | 3072 KB |
48.txt | AC | 19 ms | 3072 KB |
49.txt | WA | 1 ms | 2304 KB |
50.txt | AC | 1 ms | 2304 KB |
51.txt | AC | 1 ms | 2304 KB |
52.txt | AC | 1 ms | 2304 KB |
53.txt | AC | 1 ms | 2304 KB |
54.txt | AC | 1 ms | 2304 KB |
55.txt | AC | 2 ms | 2304 KB |
56.txt | WA | 1 ms | 2304 KB |
57.txt | AC | 1 ms | 2304 KB |
58.txt | AC | 1 ms | 2304 KB |
59.txt | AC | 1 ms | 2304 KB |
60.txt | AC | 1 ms | 2304 KB |
61.txt | AC | 2 ms | 2304 KB |
62.txt | AC | 1 ms | 2304 KB |
63.txt | AC | 1 ms | 2304 KB |
64.txt | AC | 1 ms | 2304 KB |
s1.txt | AC | 1 ms | 2304 KB |
s2.txt | AC | 2 ms | 2304 KB |
s3.txt | AC | 1 ms | 2304 KB |
s4.txt | AC | 1 ms | 2304 KB |