Submission #3428506
Source Code Expand
#include<iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<cmath> #define maxn 100010 #define mod 1000000007 #define inf 1000000000000000007 using namespace std; typedef long long ll; ll read() { ll x=0,f=1; char ch=getchar(); while(ch-'0'<0||ch-'0'>9){if(ch=='-') f=-1;ch=getchar();} while(ch-'0'>=0&&ch-'0'<=9){x=x*10+ch-'0';ch=getchar();} return x*f; } int n; ll A,B; ll a[maxn]; ll f[maxn]; int las1[maxn],las2[maxn]; ll t[maxn*4]; void push_up(int k) { t[k]=(t[k*2]+t[k*2+1])%mod; } void modi(int k,int l,int r,int x,ll y) { if(l==r) { t[k]=y; return; } int mid=(l+r)/2; if(mid>=x) modi(k*2,l,mid,x,y); else modi(k*2+1,mid+1,r,x,y); push_up(k); } ll query(int k,int l,int r,int x,int y) { if(l>=x&&r<=y) return t[k]; int mid=(l+r)/2; ll res=0; if(mid>=x) res+=query(k*2,l,mid,x,y); res%=mod; if(mid<y) res+=query(k*2+1,mid+1,r,x,y); res%=mod; return res; } int main() { n=read();A=read();B=read(); if(A>B) swap(A,B); for(int i=1;i<=n;i++) a[i]=read(); las1[1]=las2[1]=1; for(int i=2;i<=n;i++) { if(a[i]-a[i-1]>=A) las1[i]=las1[i-1]; else las1[i]=i; if(a[i]-a[i-1]>=B) las2[i]=las2[i-1]; else las2[i]=i; } f[0]=1; f[1]=1; a[0]=-inf; modi(1,0,n,0,1); modi(1,0,n,1,1); for(int i=2;i<=n;i++) { int r=upper_bound(a,a+i+1,a[i]-A)-a; r--; int l=las2[i-1]; l--; if(l>r) continue; f[i]=query(1,0,n,l,r); modi(1,0,n,i,f[i]); } printf("%lld\n",f[n]); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | justin_cao |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1737 Byte |
Status | WA |
Exec Time | 61 ms |
Memory | 5760 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 | 51 ms | 5760 KB |
02.txt | WA | 49 ms | 5760 KB |
03.txt | WA | 50 ms | 5760 KB |
04.txt | WA | 49 ms | 5760 KB |
05.txt | WA | 48 ms | 5760 KB |
06.txt | WA | 49 ms | 5760 KB |
07.txt | WA | 50 ms | 5760 KB |
08.txt | WA | 50 ms | 5760 KB |
09.txt | WA | 50 ms | 5760 KB |
10.txt | WA | 51 ms | 5760 KB |
11.txt | WA | 49 ms | 5760 KB |
12.txt | WA | 50 ms | 5760 KB |
13.txt | WA | 50 ms | 5760 KB |
14.txt | WA | 50 ms | 5760 KB |
15.txt | WA | 49 ms | 5760 KB |
16.txt | WA | 40 ms | 5760 KB |
17.txt | WA | 43 ms | 5760 KB |
18.txt | WA | 45 ms | 5760 KB |
19.txt | WA | 43 ms | 5760 KB |
20.txt | WA | 44 ms | 5760 KB |
21.txt | WA | 44 ms | 5760 KB |
22.txt | WA | 44 ms | 5760 KB |
23.txt | WA | 41 ms | 5760 KB |
24.txt | WA | 43 ms | 5760 KB |
25.txt | WA | 47 ms | 5760 KB |
26.txt | WA | 46 ms | 5760 KB |
27.txt | WA | 46 ms | 5760 KB |
28.txt | WA | 47 ms | 5760 KB |
29.txt | WA | 45 ms | 5760 KB |
30.txt | WA | 45 ms | 5760 KB |
31.txt | WA | 44 ms | 5760 KB |
32.txt | WA | 46 ms | 5760 KB |
33.txt | WA | 47 ms | 5760 KB |
34.txt | WA | 42 ms | 5760 KB |
35.txt | WA | 47 ms | 5760 KB |
36.txt | WA | 40 ms | 5760 KB |
37.txt | WA | 40 ms | 5760 KB |
38.txt | WA | 41 ms | 5760 KB |
39.txt | WA | 51 ms | 5760 KB |
40.txt | WA | 40 ms | 5760 KB |
41.txt | WA | 42 ms | 5760 KB |
42.txt | AC | 8 ms | 3072 KB |
43.txt | WA | 50 ms | 5760 KB |
44.txt | WA | 50 ms | 5760 KB |
45.txt | WA | 61 ms | 5760 KB |
46.txt | WA | 60 ms | 5760 KB |
47.txt | WA | 51 ms | 5760 KB |
48.txt | AC | 51 ms | 5760 KB |
49.txt | WA | 1 ms | 2304 KB |
50.txt | WA | 1 ms | 2304 KB |
51.txt | WA | 2 ms | 2304 KB |
52.txt | AC | 1 ms | 2304 KB |
53.txt | WA | 1 ms | 2304 KB |
54.txt | WA | 2 ms | 2304 KB |
55.txt | AC | 1 ms | 2304 KB |
56.txt | AC | 2 ms | 2304 KB |
57.txt | WA | 1 ms | 2304 KB |
58.txt | WA | 2 ms | 2304 KB |
59.txt | AC | 2 ms | 2304 KB |
60.txt | WA | 2 ms | 2304 KB |
61.txt | WA | 2 ms | 2304 KB |
62.txt | AC | 1 ms | 2304 KB |
63.txt | AC | 1 ms | 2304 KB |
64.txt | WA | 1 ms | 2304 KB |
s1.txt | AC | 1 ms | 2304 KB |
s2.txt | AC | 1 ms | 2304 KB |
s3.txt | AC | 1 ms | 2304 KB |
s4.txt | AC | 1 ms | 2304 KB |