Submission #2273541
Source Code Expand
#include<cstdio> #include<algorithm> using namespace std; typedef long long LL; const int N=100005,p=1000000007; LL A[2],z[N]; int f[2][N],l1[2],l2[2],i,j,k,n,m,l,r; char c; inline char getc() { #define VV 10000000 static char s[VV],*l=s,*r=s; if (l==r) l=s,r=s+fread(s,1,VV,stdin); return l==r?0:*l++; } LL read(){ LL z=0; do c=getc(); while (c<'0'||c>'9'); while (c>='0'&&c<='9') z*=10,z+=c-'0',c=getc(); return z; } void plus(int &a,int b){ a+=b,a-=a<p?0:p; } int Minus(int a,int b){ a-=b,a+=a<0?p:0; return a; } int main() { n=read(),A[0]=read(),A[1]=read(); for (i=1;i<=n;++i) z[i]=read(); l1[0]=l1[1]=f[0][1]=f[1][1]=1; for (i=2;i<=n;++i) { for (j=0;j<2;++j) { if (z[i]-z[i-1]<A[j]) l1[j]=i; if (i<n) while (z[i+1]-z[l2[j]+1]>=A[j]) ++l2[j]; else l2[j]=n-1; } for (j=0;j<2;++j) { f[j][i]=f[j][i-1]; if (l1[j]==1) plus(f[j][i],1); l=max(l1[j]-1,1),r=min(l2[!j],i-1); if (l<=r) plus(f[j][i],Minus(f[!j][r],f[!j][l-1])); } } printf("%d\n",(Minus(f[0][n],f[0][n-1])+Minus(f[1][n],f[1][n-1]))%p); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | jjb |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 1137 Byte |
Status | AC |
Exec Time | 7 ms |
Memory | 4224 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1100 / 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 | AC | 7 ms | 4224 KB |
02.txt | AC | 6 ms | 4224 KB |
03.txt | AC | 6 ms | 4224 KB |
04.txt | AC | 6 ms | 4224 KB |
05.txt | AC | 6 ms | 4224 KB |
06.txt | AC | 6 ms | 4224 KB |
07.txt | AC | 6 ms | 4224 KB |
08.txt | AC | 6 ms | 4224 KB |
09.txt | AC | 6 ms | 4224 KB |
10.txt | AC | 6 ms | 4224 KB |
11.txt | AC | 6 ms | 4224 KB |
12.txt | AC | 6 ms | 4224 KB |
13.txt | AC | 6 ms | 4224 KB |
14.txt | AC | 6 ms | 4224 KB |
15.txt | AC | 6 ms | 4224 KB |
16.txt | AC | 4 ms | 4224 KB |
17.txt | AC | 4 ms | 4224 KB |
18.txt | AC | 5 ms | 4224 KB |
19.txt | AC | 5 ms | 4224 KB |
20.txt | AC | 5 ms | 4224 KB |
21.txt | AC | 5 ms | 4224 KB |
22.txt | AC | 5 ms | 4224 KB |
23.txt | AC | 4 ms | 4224 KB |
24.txt | AC | 5 ms | 4224 KB |
25.txt | AC | 6 ms | 4224 KB |
26.txt | AC | 6 ms | 4224 KB |
27.txt | AC | 6 ms | 4224 KB |
28.txt | AC | 6 ms | 4224 KB |
29.txt | AC | 5 ms | 4224 KB |
30.txt | AC | 5 ms | 4224 KB |
31.txt | AC | 5 ms | 4224 KB |
32.txt | AC | 5 ms | 4224 KB |
33.txt | AC | 5 ms | 4224 KB |
34.txt | AC | 5 ms | 4224 KB |
35.txt | AC | 5 ms | 4224 KB |
36.txt | AC | 4 ms | 4224 KB |
37.txt | AC | 4 ms | 4224 KB |
38.txt | AC | 4 ms | 4224 KB |
39.txt | AC | 6 ms | 4224 KB |
40.txt | AC | 4 ms | 4224 KB |
41.txt | AC | 4 ms | 4224 KB |
42.txt | AC | 4 ms | 4224 KB |
43.txt | AC | 6 ms | 4224 KB |
44.txt | AC | 6 ms | 4224 KB |
45.txt | AC | 6 ms | 4224 KB |
46.txt | AC | 6 ms | 4224 KB |
47.txt | AC | 6 ms | 4224 KB |
48.txt | AC | 6 ms | 4224 KB |
49.txt | AC | 1 ms | 128 KB |
50.txt | AC | 1 ms | 128 KB |
51.txt | AC | 1 ms | 128 KB |
52.txt | AC | 1 ms | 128 KB |
53.txt | AC | 1 ms | 128 KB |
54.txt | AC | 0 ms | 128 KB |
55.txt | AC | 1 ms | 128 KB |
56.txt | AC | 1 ms | 128 KB |
57.txt | AC | 1 ms | 128 KB |
58.txt | AC | 1 ms | 128 KB |
59.txt | AC | 0 ms | 128 KB |
60.txt | AC | 1 ms | 128 KB |
61.txt | AC | 1 ms | 128 KB |
62.txt | AC | 1 ms | 128 KB |
63.txt | AC | 1 ms | 128 KB |
64.txt | AC | 1 ms | 128 KB |
s1.txt | AC | 1 ms | 128 KB |
s2.txt | AC | 1 ms | 128 KB |
s3.txt | AC | 1 ms | 128 KB |
s4.txt | AC | 1 ms | 128 KB |