Submission #1569557
Source Code Expand
#include <iostream> #include <algorithm> #include <vector> #include <queue> #include <map> #include <unordered_map> #include <set> using namespace std; #define MOD 1000000007 int main(){ cin.tie(0); ios::sync_with_stdio(false); int N; long long A, B; cin >> N >> A >> B; vector<long long> S(N+1); S[0] = -(1LL << 60); for(int i=1; i<=N; i++) cin >> S[i]; if(A > B) swap(A, B); for(int i=2; i<=N; i++) if(S[i] - S[i-2] < A){ cout << 0 << endl; return 0; } vector<long long> dp1(N+1, 0), dp2(N+1, 0); dp1[0] = 1; dp2[0] = 1; int cur = 0; int tail = 0; for(int i=1; i<=N; i++){ for(int j=cur; j<i; j++){ if(S[i] - S[j] >= B){ cur = j; }else break; } if(S[i] - S[i-1] < A){ dp2[i-1] = dp1[i-1]; int id = min(i-2, cur); if(tail <= id) dp1[i] = dp2[id]; tail = i-1; }else if(tail <= cur){ dp1[i] = dp2[cur]; } dp2[i] = (dp2[i-1] + dp1[i]) % MOD; } long long ans = 0; for(int i=tail; i<=N; i++){ ans += dp1[i] % MOD; ans %= MOD; } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | suzume |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 1308 Byte |
Status | AC |
Exec Time | 18 ms |
Memory | 2688 KB |
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 | 18 ms | 2560 KB |
02.txt | AC | 16 ms | 2560 KB |
03.txt | AC | 17 ms | 2560 KB |
04.txt | AC | 16 ms | 2560 KB |
05.txt | AC | 16 ms | 2560 KB |
06.txt | AC | 16 ms | 2560 KB |
07.txt | AC | 17 ms | 2560 KB |
08.txt | AC | 17 ms | 2560 KB |
09.txt | AC | 17 ms | 2560 KB |
10.txt | AC | 17 ms | 2560 KB |
11.txt | AC | 16 ms | 2560 KB |
12.txt | AC | 17 ms | 2560 KB |
13.txt | AC | 17 ms | 2560 KB |
14.txt | AC | 17 ms | 2560 KB |
15.txt | AC | 16 ms | 2560 KB |
16.txt | AC | 10 ms | 2560 KB |
17.txt | AC | 12 ms | 2560 KB |
18.txt | AC | 14 ms | 2560 KB |
19.txt | AC | 12 ms | 2560 KB |
20.txt | AC | 13 ms | 2688 KB |
21.txt | AC | 12 ms | 2560 KB |
22.txt | AC | 13 ms | 2560 KB |
23.txt | AC | 11 ms | 2560 KB |
24.txt | AC | 12 ms | 2560 KB |
25.txt | AC | 15 ms | 2560 KB |
26.txt | AC | 14 ms | 2560 KB |
27.txt | AC | 15 ms | 2560 KB |
28.txt | AC | 15 ms | 2560 KB |
29.txt | AC | 14 ms | 2560 KB |
30.txt | AC | 14 ms | 2560 KB |
31.txt | AC | 13 ms | 2560 KB |
32.txt | AC | 14 ms | 2560 KB |
33.txt | AC | 15 ms | 2560 KB |
34.txt | AC | 12 ms | 2560 KB |
35.txt | AC | 15 ms | 2560 KB |
36.txt | AC | 10 ms | 2560 KB |
37.txt | AC | 11 ms | 2560 KB |
38.txt | AC | 11 ms | 2560 KB |
39.txt | AC | 17 ms | 2560 KB |
40.txt | AC | 10 ms | 2560 KB |
41.txt | AC | 11 ms | 2560 KB |
42.txt | AC | 9 ms | 1024 KB |
43.txt | AC | 17 ms | 2560 KB |
44.txt | AC | 17 ms | 2560 KB |
45.txt | AC | 17 ms | 2560 KB |
46.txt | AC | 17 ms | 2560 KB |
47.txt | AC | 15 ms | 1024 KB |
48.txt | AC | 15 ms | 1024 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 |