Submission #2672841
Source Code Expand
#include<bits/stdc++.h> using namespace std; typedef long long giant; inline char nchar() { static const int bufl=1<<20; static char buf[bufl],*a=NULL,*b=NULL; return a==b && (b=(a=buf)+fread(buf,1,bufl,stdin),a==b)?EOF:*a++; } template<class T> inline T read() { T x=0,f=1; char c=nchar(); for (;!isdigit(c);c=nchar()) if (c=='-') f=-1; for (;isdigit(c);c=nchar()) x=x*10+c-'0'; return x*f; } const int q=1e9+7; inline int Plus(int x,int y) {return x+y>=q?(x+y-q):(x+y);} inline int Sub(int x,int y) {return x<y?(x-y+q):(x-y);} inline int Multi(int x,int y) {return 1ll*x*y%q;} inline int& Pe(int &x,int y) {return x=Plus(x,y);} inline int& Se(int &x,int y) {return x=Sub(x,y);} inline int& Me(int &x,int y) {return x=1ll*x*y%q;} const int maxn=1e5+10; int n,axt[maxn],bxt[maxn]; giant A,B,a[maxn]; class arr { public: int c[maxn],tic[maxn],tim,now; arr ():tim(0),now(0) { memset(c,0,sizeof c); memset(tic,0,sizeof tic); } inline int& C(int x) { if (tic[x]!=tim) tic[x]=tim,c[x]=0; return c[x]; } void clear() { ++tim; } void flow() { --now; C(now)=C(now+1); } } f[2]; int main() { n=read<int>(),A=read<giant>(),B=read<giant>(); generate_n(a+1,n,read<giant>); if (n==1) return puts("2"),0; for (int i=n,j=n+1,k=n+1;i>0;--i) { for (;a[j-1]-a[i]>=A;--j); for (;a[k-1]-a[i]>=B;--k); axt[i]=j,bxt[i]=k; } f[0].c[n+1]=f[1].c[n+1]=1; f[0].now=f[1].now=n+1; for (int i=n-1;i>0;--i) { f[0].flow(),f[1].flow(); int fir=f[1].C(axt[i]); int sec=f[0].C(bxt[i]); if (axt[i]!=i+1) f[0].clear(); Pe(f[0].C(i+1),fir); if (bxt[i]!=i+1) f[1].clear(); Pe(f[1].C(i+1),sec); } int ans=0; for (int i=0;i<2;++i) { f[i].flow(); Pe(ans,f[i].C(1)); } printf("%d\n",ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | permui |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 1799 Byte |
Status | AC |
Exec Time | 8 ms |
Memory | 4352 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1100 / 1100 | ||||
Status |
|
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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 | 8 ms | 4352 KB |
02.txt | AC | 7 ms | 4352 KB |
03.txt | AC | 7 ms | 4352 KB |
04.txt | AC | 6 ms | 4352 KB |
05.txt | AC | 6 ms | 4352 KB |
06.txt | AC | 6 ms | 4352 KB |
07.txt | AC | 7 ms | 4352 KB |
08.txt | AC | 7 ms | 4352 KB |
09.txt | AC | 7 ms | 4352 KB |
10.txt | AC | 7 ms | 4352 KB |
11.txt | AC | 6 ms | 4352 KB |
12.txt | AC | 7 ms | 4352 KB |
13.txt | AC | 7 ms | 4352 KB |
14.txt | AC | 7 ms | 4352 KB |
15.txt | AC | 6 ms | 4352 KB |
16.txt | AC | 5 ms | 4352 KB |
17.txt | AC | 5 ms | 4352 KB |
18.txt | AC | 6 ms | 4352 KB |
19.txt | AC | 5 ms | 4352 KB |
20.txt | AC | 6 ms | 4352 KB |
21.txt | AC | 6 ms | 4352 KB |
22.txt | AC | 5 ms | 4352 KB |
23.txt | AC | 5 ms | 4352 KB |
24.txt | AC | 5 ms | 4352 KB |
25.txt | AC | 6 ms | 4352 KB |
26.txt | AC | 6 ms | 4352 KB |
27.txt | AC | 6 ms | 4352 KB |
28.txt | AC | 6 ms | 4352 KB |
29.txt | AC | 6 ms | 4352 KB |
30.txt | AC | 6 ms | 4352 KB |
31.txt | AC | 6 ms | 4352 KB |
32.txt | AC | 6 ms | 4352 KB |
33.txt | AC | 6 ms | 4352 KB |
34.txt | AC | 5 ms | 4352 KB |
35.txt | AC | 6 ms | 4352 KB |
36.txt | AC | 5 ms | 4352 KB |
37.txt | AC | 5 ms | 4352 KB |
38.txt | AC | 5 ms | 4352 KB |
39.txt | AC | 7 ms | 4352 KB |
40.txt | AC | 5 ms | 4352 KB |
41.txt | AC | 5 ms | 4352 KB |
42.txt | AC | 4 ms | 4352 KB |
43.txt | AC | 7 ms | 4352 KB |
44.txt | AC | 7 ms | 4352 KB |
45.txt | AC | 7 ms | 4352 KB |
46.txt | AC | 7 ms | 4352 KB |
47.txt | AC | 7 ms | 4352 KB |
48.txt | AC | 7 ms | 4352 KB |
49.txt | AC | 2 ms | 3840 KB |
50.txt | AC | 2 ms | 3840 KB |
51.txt | AC | 2 ms | 3840 KB |
52.txt | AC | 2 ms | 3840 KB |
53.txt | AC | 2 ms | 3840 KB |
54.txt | AC | 2 ms | 3840 KB |
55.txt | AC | 2 ms | 3840 KB |
56.txt | AC | 2 ms | 3840 KB |
57.txt | AC | 2 ms | 3840 KB |
58.txt | AC | 2 ms | 3840 KB |
59.txt | AC | 2 ms | 3840 KB |
60.txt | AC | 2 ms | 3840 KB |
61.txt | AC | 2 ms | 3840 KB |
62.txt | AC | 2 ms | 3840 KB |
63.txt | AC | 2 ms | 3840 KB |
64.txt | AC | 2 ms | 3840 KB |
s1.txt | AC | 2 ms | 3840 KB |
s2.txt | AC | 2 ms | 3840 KB |
s3.txt | AC | 2 ms | 3840 KB |
s4.txt | AC | 2 ms | 3840 KB |