Submission #2414075
Source Code Expand
#include <bits/stdc++.h> using namespace std; int N; long long A, B; #define MAX_N 100000 long long S[MAX_N]; int FA[MAX_N], FB[MAX_N]; #define MOD 1000000007 long long X[MAX_N], Y[MAX_N]; void solve(int i, long long a, int fb[MAX_N], long long x[MAX_N], long long y[MAX_N]) { int j = upper_bound(S, S + N, S[i] - a) - S - 1; if(j < 0) x[i] = fb[i - 1] - fb[0] == i - 1; else if(j == i - 1) x[i] = (x[i - 1] + y[i - 1]) % MOD; else { if(fb[i - 1] - fb[j + 1] == (i - 1) - (j + 1)) { x[i] = y[j + 1]; } else { x[i] = 0; } } } int main() { cin >> N >> A >> B; for(int i = 0; i < N; ++i) cin >> S[i]; FA[0] = FB[0] = 0; for(int i = 1; i < N; ++i) { FA[i] = FA[i - 1] + (S[i] - S[i - 1] >= A); FB[i] = FB[i - 1] + (S[i] - S[i - 1] >= B); } X[0] = Y[0] = 1; for(int i = 1; i < N; ++i) { solve(i, A, FB, X, Y); solve(i, B, FA, Y, X); } cout << (X[N - 1] + Y[N - 1]) % MOD << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | shiatsumat |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 1000 Byte |
Status | AC |
Exec Time | 78 ms |
Memory | 3328 KB |
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 | 76 ms | 3328 KB |
02.txt | AC | 72 ms | 3328 KB |
03.txt | AC | 75 ms | 3328 KB |
04.txt | AC | 74 ms | 3328 KB |
05.txt | AC | 72 ms | 3328 KB |
06.txt | AC | 74 ms | 3328 KB |
07.txt | AC | 76 ms | 3328 KB |
08.txt | AC | 74 ms | 3328 KB |
09.txt | AC | 76 ms | 3328 KB |
10.txt | AC | 76 ms | 3328 KB |
11.txt | AC | 75 ms | 3328 KB |
12.txt | AC | 76 ms | 3328 KB |
13.txt | AC | 76 ms | 3328 KB |
14.txt | AC | 74 ms | 3328 KB |
15.txt | AC | 73 ms | 3328 KB |
16.txt | AC | 36 ms | 3328 KB |
17.txt | AC | 48 ms | 3328 KB |
18.txt | AC | 55 ms | 3328 KB |
19.txt | AC | 52 ms | 3328 KB |
20.txt | AC | 51 ms | 3328 KB |
21.txt | AC | 51 ms | 3328 KB |
22.txt | AC | 53 ms | 3328 KB |
23.txt | AC | 44 ms | 3328 KB |
24.txt | AC | 48 ms | 3328 KB |
25.txt | AC | 66 ms | 3328 KB |
26.txt | AC | 62 ms | 3328 KB |
27.txt | AC | 62 ms | 3328 KB |
28.txt | AC | 62 ms | 3328 KB |
29.txt | AC | 57 ms | 3328 KB |
30.txt | AC | 56 ms | 3328 KB |
31.txt | AC | 55 ms | 3328 KB |
32.txt | AC | 60 ms | 3328 KB |
33.txt | AC | 67 ms | 3328 KB |
34.txt | AC | 49 ms | 3328 KB |
35.txt | AC | 67 ms | 3328 KB |
36.txt | AC | 39 ms | 3328 KB |
37.txt | AC | 45 ms | 3328 KB |
38.txt | AC | 40 ms | 3328 KB |
39.txt | AC | 78 ms | 3328 KB |
40.txt | AC | 39 ms | 3328 KB |
41.txt | AC | 45 ms | 3328 KB |
42.txt | AC | 32 ms | 3328 KB |
43.txt | AC | 76 ms | 3328 KB |
44.txt | AC | 76 ms | 3328 KB |
45.txt | AC | 76 ms | 3328 KB |
46.txt | AC | 76 ms | 3328 KB |
47.txt | AC | 76 ms | 3328 KB |
48.txt | AC | 77 ms | 3328 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 |