Submission #1750917
Source Code Expand
///////////////////////////////////////////////////////////
#include<cstdio>
#include<cstring>
#include<cctype>
#include<algorithm>
#define rep(i,a,b) for(int i=(a),i##_end_=(b);i<=i##_end_;i++)
#define dwn(i,a,b) for(int i=(a),i##_end_=(b);i>=i##_end_;i--)
using namespace std;
const int Size=1<<16;
char buffer[Size],*head,*tail;
inline char Getchar() {
if(head==tail) {
int l=fread(buffer,1,Size,stdin);
tail=(head=buffer)+l;
}
if(head==tail) return -1;
return *head++;
}
typedef long long ll;
inline ll read() {
ll x=0,f=1;char c=Getchar();
for(;!isdigit(c);c=Getchar()) if(c=='-') f=-1;
for(;isdigit(c);c=Getchar()) x=x*10+c-'0';
return x*f;
}
const int maxn=100010;
const ll inf=1ll<<61;
const int mod=1000000007;
int n;
ll A,B,S[maxn],tmp[maxn];
struct Segment {
int setv[maxn<<2],sumv[maxn<<2];
void update(int o,int l,int r,int p,int v) {
int mid=l+r>>1,lc=o<<1,rc=lc|1;
if(setv[o]) {
sumv[lc]=sumv[rc]=0;
setv[lc]=setv[rc]=1;
setv[o]=0;
}
if(l==r) (sumv[o]+=v)%=mod;
else {
if(p<=mid) update(lc,l,mid,p,v);
else update(rc,mid+1,r,p,v);
sumv[o]=(sumv[lc]+sumv[rc])%mod;
}
}
int query(int o,int l,int r,int ql,int qr) {
int mid=l+r>>1,lc=o<<1,rc=lc|1,res=0;
if(setv[o]) {
sumv[lc]=sumv[rc]=0;
setv[lc]=setv[rc]=1;
setv[o]=0;
}
if(ql<=l&&r<=qr) return sumv[o];
if(ql<=mid) (res+=query(lc,l,mid,ql,qr))%=mod;
if(qr>mid) (res+=query(rc,mid+1,r,ql,qr))%=mod;
return res;
}
void clear() {setv[1]=1;sumv[1]=0;}
}F,G;
int find(ll val) {return upper_bound(tmp+1,tmp+n+2,val)-tmp-2;}
int main() {
n=read();A=read();B=read();
S[0]=-inf;rep(i,1,n) S[i]=read();
rep(i,0,n) tmp[i+1]=S[i];
F.update(1,0,n,0,1);G.update(1,0,n,0,1);
rep(i,1,n-1) {
int v1=F.query(1,0,n,0,find(S[i+1]-B)),v2=G.query(1,0,n,0,find(S[i+1]-A));
if(S[i+1]-S[i]<A) F.clear();
if(S[i+1]-S[i]<B) G.clear();
G.update(1,0,n,i,v1);F.update(1,0,n,i,v2);
}
int ans=F.query(1,0,n,0,n-1)+G.query(1,0,n,0,n-1);
printf("%d\n",ans%mod);
return 0;
}
Submission Info
Submission Time |
|
Task |
C - Division into Two |
User |
wzj52501 |
Language |
C++14 (GCC 5.4.1) |
Score |
0 |
Code Size |
2105 Byte |
Status |
RE |
Exec Time |
132 ms |
Memory |
8064 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 |
70 ms |
8064 KB |
02.txt |
WA |
70 ms |
8064 KB |
03.txt |
WA |
71 ms |
8064 KB |
04.txt |
WA |
70 ms |
8064 KB |
05.txt |
WA |
69 ms |
6528 KB |
06.txt |
WA |
70 ms |
8064 KB |
07.txt |
WA |
71 ms |
8064 KB |
08.txt |
WA |
69 ms |
8064 KB |
09.txt |
WA |
72 ms |
8064 KB |
10.txt |
WA |
71 ms |
8064 KB |
11.txt |
WA |
70 ms |
8064 KB |
12.txt |
AC |
64 ms |
6400 KB |
13.txt |
WA |
70 ms |
8064 KB |
14.txt |
WA |
71 ms |
8064 KB |
15.txt |
WA |
70 ms |
8064 KB |
16.txt |
RE |
127 ms |
6272 KB |
17.txt |
WA |
61 ms |
7936 KB |
18.txt |
RE |
129 ms |
6272 KB |
19.txt |
WA |
69 ms |
8064 KB |
20.txt |
WA |
69 ms |
8064 KB |
21.txt |
WA |
70 ms |
8064 KB |
22.txt |
WA |
66 ms |
8064 KB |
23.txt |
WA |
68 ms |
8064 KB |
24.txt |
WA |
68 ms |
8064 KB |
25.txt |
WA |
71 ms |
8064 KB |
26.txt |
WA |
71 ms |
8064 KB |
27.txt |
WA |
70 ms |
8064 KB |
28.txt |
WA |
70 ms |
8064 KB |
29.txt |
WA |
69 ms |
8064 KB |
30.txt |
WA |
69 ms |
8064 KB |
31.txt |
WA |
69 ms |
8064 KB |
32.txt |
WA |
69 ms |
8064 KB |
33.txt |
WA |
70 ms |
8064 KB |
34.txt |
WA |
69 ms |
8064 KB |
35.txt |
WA |
69 ms |
8064 KB |
36.txt |
AC |
62 ms |
6400 KB |
37.txt |
WA |
68 ms |
6528 KB |
38.txt |
WA |
68 ms |
7936 KB |
39.txt |
WA |
70 ms |
6528 KB |
40.txt |
WA |
69 ms |
8064 KB |
41.txt |
WA |
70 ms |
8064 KB |
42.txt |
RE |
132 ms |
7424 KB |
43.txt |
AC |
63 ms |
6400 KB |
44.txt |
AC |
64 ms |
6400 KB |
45.txt |
WA |
64 ms |
6528 KB |
46.txt |
WA |
65 ms |
7808 KB |
47.txt |
WA |
65 ms |
8064 KB |
48.txt |
AC |
66 ms |
8064 KB |
49.txt |
AC |
1 ms |
2176 KB |
50.txt |
AC |
1 ms |
4224 KB |
51.txt |
AC |
1 ms |
4224 KB |
52.txt |
AC |
1 ms |
4224 KB |
53.txt |
AC |
1 ms |
2176 KB |
54.txt |
AC |
1 ms |
4224 KB |
55.txt |
AC |
1 ms |
4224 KB |
56.txt |
AC |
1 ms |
4224 KB |
57.txt |
AC |
1 ms |
4224 KB |
58.txt |
AC |
1 ms |
4224 KB |
59.txt |
AC |
1 ms |
4224 KB |
60.txt |
AC |
2 ms |
4224 KB |
61.txt |
AC |
1 ms |
4224 KB |
62.txt |
AC |
1 ms |
4224 KB |
63.txt |
AC |
1 ms |
4224 KB |
64.txt |
AC |
1 ms |
4224 KB |
s1.txt |
AC |
1 ms |
4224 KB |
s2.txt |
AC |
1 ms |
4224 KB |
s3.txt |
AC |
1 ms |
4224 KB |
s4.txt |
AC |
1 ms |
4224 KB |