Submission #1754299
Source Code Expand
#include<stdio.h> #include<math.h> #include<algorithm> #include<queue> #include<string> #include<string.h> #include<vector> #include<set> #include<map> #include<stdlib.h> using namespace std; const long long mod=1000000007; const long long inf=mod*mod; long long c[110000]; int las[110000]; long long dp[110000]; long long bit[110000]; long long sum(int a,int b){ if(a)return (sum(0,b)+mod-sum(0,a-1))%mod; long long ret=0; for(;b>=0;b=(b&(b+1))-1)ret+=bit[b]; return ret%mod; } void add(int a,long long b){ for(;a<110000;a|=a+1)bit[a]=(bit[a]+b)%mod; } int main(){ int a; long long x,y; scanf("%d%lld%lld",&a,&x,&y); for(int i=0;i<a;i++){ scanf("%lld",c+i); } if(x>y)swap(x,y); for(int i=2;i<a;i++){ if(c[i]-c[i-2]<x){ printf("0\n");return 0; } } int now=0; for(int i=0;i<a;i++){ las[i+1]=now; if(c[i+1]-c[i]<x)now=i+1; } dp[0]=1; add(0,1); for(int i=1;i<=a;i++){ int at=upper_bound(c,c+a,c[i-1]-y)-c; long long tmp=0; if(las[i-1]<=at)tmp=sum(las[i-1],at); dp[i]=tmp; add(i,tmp); // printf("%d: %d %d %lld\n",i,at,las[i-1],dp[i]); } long long ret=0; for(int i=las[a];i<=a;i++)ret+=dp[i]; ret%=mod; printf("%lld\n",ret); }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | tozangezan |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 1231 Byte |
Status | AC |
Exec Time | 30 ms |
Memory | 2944 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:30:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld%lld",&a,&x,&y); ^ ./Main.cpp:32:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",c+i); ^
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 | 29 ms | 2944 KB |
02.txt | AC | 28 ms | 2944 KB |
03.txt | AC | 30 ms | 2944 KB |
04.txt | AC | 29 ms | 2944 KB |
05.txt | AC | 26 ms | 2944 KB |
06.txt | AC | 29 ms | 2944 KB |
07.txt | AC | 30 ms | 2944 KB |
08.txt | AC | 28 ms | 2944 KB |
09.txt | AC | 30 ms | 2944 KB |
10.txt | AC | 30 ms | 2944 KB |
11.txt | AC | 30 ms | 2944 KB |
12.txt | AC | 28 ms | 2944 KB |
13.txt | AC | 29 ms | 2944 KB |
14.txt | AC | 29 ms | 2944 KB |
15.txt | AC | 29 ms | 2944 KB |
16.txt | AC | 16 ms | 2944 KB |
17.txt | AC | 17 ms | 2944 KB |
18.txt | AC | 19 ms | 2944 KB |
19.txt | AC | 22 ms | 2944 KB |
20.txt | AC | 24 ms | 2944 KB |
21.txt | AC | 26 ms | 2944 KB |
22.txt | AC | 21 ms | 2944 KB |
23.txt | AC | 21 ms | 2944 KB |
24.txt | AC | 23 ms | 2944 KB |
25.txt | AC | 27 ms | 2944 KB |
26.txt | AC | 27 ms | 2944 KB |
27.txt | AC | 26 ms | 2944 KB |
28.txt | AC | 26 ms | 2944 KB |
29.txt | AC | 25 ms | 2944 KB |
30.txt | AC | 25 ms | 2944 KB |
31.txt | AC | 24 ms | 2944 KB |
32.txt | AC | 24 ms | 2944 KB |
33.txt | AC | 25 ms | 2944 KB |
34.txt | AC | 21 ms | 2944 KB |
35.txt | AC | 24 ms | 2944 KB |
36.txt | AC | 20 ms | 2944 KB |
37.txt | AC | 21 ms | 2944 KB |
38.txt | AC | 20 ms | 2944 KB |
39.txt | AC | 28 ms | 2944 KB |
40.txt | AC | 23 ms | 2944 KB |
41.txt | AC | 21 ms | 2944 KB |
42.txt | AC | 10 ms | 896 KB |
43.txt | AC | 28 ms | 2944 KB |
44.txt | AC | 28 ms | 2944 KB |
45.txt | AC | 28 ms | 2944 KB |
46.txt | AC | 28 ms | 2944 KB |
47.txt | AC | 17 ms | 896 KB |
48.txt | AC | 17 ms | 896 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 | 128 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 | 128 KB |
58.txt | AC | 1 ms | 128 KB |
59.txt | AC | 1 ms | 128 KB |
60.txt | AC | 1 ms | 256 KB |
61.txt | AC | 1 ms | 256 KB |
62.txt | AC | 1 ms | 128 KB |
63.txt | AC | 1 ms | 128 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 | 128 KB |