Submission #2199109
Source Code Expand
#include <iostream> #include <cstdio> #include <cstring> using namespace std; typedef long long ll; const int mod=1e9+7; ll f[100005],a[100005],A,B; int n,pre[100005],sum[100005]; int main(){ scanf("%d%lld%lld",&n,&A,&B); for(int i=1;i<=n;i++) scanf("%lld",&a[i]); a[++n]=5e18; pre[1]=1; for(int i=2;i<n;i++){ pre[i]=pre[i-1]; while(a[i+1]-a[pre[i]]>=B&&pre[i]<i) pre[i]++; } for(int i=2;i<=n;i++) sum[i]=sum[i-1]+(a[i]-a[i-1]<A); for(int i=1;i<n;i++){ if(sum[i]-sum[pre[i]]) pre[i]=n+1; } ll sum=1;f[0]=1; for(int i=1,L=1;i<=n;i++){ if(i>2&&a[i-1]-a[i-2]<B) sum=0,L=i-2; while(a[i]-a[L]>=A&&L<i-1) sum=(sum+f[pre[L]])%mod,L++; f[i]=sum; if(i>1&&a[i]-a[i-1]>=A) f[i]=(f[i]+f[i-1])%mod; } printf("%lld",f[n]); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | liumy2010 |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 778 Byte |
Status | AC |
Exec Time | 20 ms |
Memory | 2560 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:10:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld%lld",&n,&A,&B); ^ ./Main.cpp:11:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=n;i++) scanf("%lld",&a[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1100 / 1100 | ||||
Status |
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Set Name | Test Cases |
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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 | 20 ms | 2560 KB |
02.txt | AC | 18 ms | 2560 KB |
03.txt | AC | 19 ms | 2560 KB |
04.txt | AC | 18 ms | 2560 KB |
05.txt | AC | 18 ms | 2560 KB |
06.txt | AC | 18 ms | 2560 KB |
07.txt | AC | 19 ms | 2560 KB |
08.txt | AC | 19 ms | 2560 KB |
09.txt | AC | 19 ms | 2560 KB |
10.txt | AC | 19 ms | 2560 KB |
11.txt | AC | 19 ms | 2560 KB |
12.txt | AC | 19 ms | 2560 KB |
13.txt | AC | 19 ms | 2560 KB |
14.txt | AC | 19 ms | 2560 KB |
15.txt | AC | 18 ms | 2560 KB |
16.txt | AC | 12 ms | 2560 KB |
17.txt | AC | 14 ms | 2560 KB |
18.txt | AC | 16 ms | 2560 KB |
19.txt | AC | 14 ms | 2560 KB |
20.txt | AC | 15 ms | 2560 KB |
21.txt | AC | 15 ms | 2560 KB |
22.txt | AC | 15 ms | 2560 KB |
23.txt | AC | 12 ms | 2560 KB |
24.txt | AC | 14 ms | 2560 KB |
25.txt | AC | 17 ms | 2560 KB |
26.txt | AC | 17 ms | 2560 KB |
27.txt | AC | 17 ms | 2560 KB |
28.txt | AC | 17 ms | 2560 KB |
29.txt | AC | 16 ms | 2560 KB |
30.txt | AC | 16 ms | 2560 KB |
31.txt | AC | 16 ms | 2560 KB |
32.txt | AC | 16 ms | 2560 KB |
33.txt | AC | 17 ms | 2560 KB |
34.txt | AC | 13 ms | 2560 KB |
35.txt | AC | 17 ms | 2560 KB |
36.txt | AC | 12 ms | 2560 KB |
37.txt | AC | 12 ms | 2560 KB |
38.txt | AC | 12 ms | 2560 KB |
39.txt | AC | 19 ms | 2560 KB |
40.txt | AC | 12 ms | 2560 KB |
41.txt | AC | 13 ms | 2560 KB |
42.txt | AC | 12 ms | 2560 KB |
43.txt | AC | 19 ms | 2560 KB |
44.txt | AC | 20 ms | 2560 KB |
45.txt | AC | 20 ms | 2560 KB |
46.txt | AC | 20 ms | 2560 KB |
47.txt | AC | 20 ms | 2560 KB |
48.txt | AC | 20 ms | 2560 KB |
49.txt | AC | 1 ms | 256 KB |
50.txt | AC | 1 ms | 256 KB |
51.txt | AC | 1 ms | 256 KB |
52.txt | AC | 1 ms | 256 KB |
53.txt | AC | 1 ms | 256 KB |
54.txt | AC | 1 ms | 256 KB |
55.txt | AC | 1 ms | 256 KB |
56.txt | AC | 1 ms | 256 KB |
57.txt | AC | 1 ms | 256 KB |
58.txt | AC | 1 ms | 256 KB |
59.txt | AC | 1 ms | 256 KB |
60.txt | AC | 1 ms | 256 KB |
61.txt | AC | 1 ms | 256 KB |
62.txt | AC | 1 ms | 256 KB |
63.txt | AC | 1 ms | 256 KB |
64.txt | AC | 1 ms | 256 KB |
s1.txt | AC | 1 ms | 256 KB |
s2.txt | AC | 1 ms | 256 KB |
s3.txt | AC | 1 ms | 256 KB |
s4.txt | AC | 1 ms | 256 KB |