Submission #1418325
Source Code Expand
#include <cstdio> #include <algorithm> using namespace std; #define iter(i, n) for (int i = 1; i <= n; ++i) #define forw(i, a, b) for (int i = a; i <= b; ++i) #define NR 101000 const int mod = 1000000007; int n, f[NR], sum[NR], L[NR], R[NR]; long long a[NR], dA, dB; int main() { scanf("%d%lld%lld", &n, &dA, &dB); if (dA > dB) swap(dA, dB); iter(i, n) scanf("%lld", &a[i]); int p = 0; forw(i, 2, n) { if (i > 2 && a[i] - a[i - 2] < dA) { printf("0\n"); return 0; } L[i] = (a[i] - a[i - 1] >= dA) ? L[i - 1] : i - 1; for (; a[i] - a[p + 1] >= dB; ++p); R[i] = p; } f[0] = sum[0] = 1; L[1] = R[1] = 0; iter(i, n) { if (L[i-1] <= R[i]) f[i] = (sum[R[i]] - (L[i - 1] > 0 ? sum[L[i - 1] - 1] : 0) + mod) % mod; sum[i] = (sum[i - 1] + f[i]) % mod; //printf("%d %d %d\n", f[i], L[i - 1], R[i]); } printf("%d\n", (sum[n] - (L[n] > 0 ? sum[L[n] - 1] : 0) + mod) % mod); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | Ketsui |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 964 Byte |
Status | AC |
Exec Time | 19 ms |
Memory | 2560 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:15:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld%lld", &n, &dA, &dB); ^ ./Main.cpp:17:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] iter(i, n) 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 | 19 ms | 2560 KB |
02.txt | AC | 17 ms | 2560 KB |
03.txt | AC | 18 ms | 2560 KB |
04.txt | AC | 17 ms | 2560 KB |
05.txt | AC | 17 ms | 2560 KB |
06.txt | AC | 17 ms | 2560 KB |
07.txt | AC | 18 ms | 2560 KB |
08.txt | AC | 18 ms | 2560 KB |
09.txt | AC | 18 ms | 2560 KB |
10.txt | AC | 18 ms | 2560 KB |
11.txt | AC | 18 ms | 2560 KB |
12.txt | AC | 19 ms | 2560 KB |
13.txt | AC | 18 ms | 2560 KB |
14.txt | AC | 18 ms | 2560 KB |
15.txt | AC | 17 ms | 2560 KB |
16.txt | AC | 11 ms | 2560 KB |
17.txt | AC | 13 ms | 2560 KB |
18.txt | AC | 15 ms | 2560 KB |
19.txt | AC | 13 ms | 2560 KB |
20.txt | AC | 14 ms | 2560 KB |
21.txt | AC | 14 ms | 2560 KB |
22.txt | AC | 14 ms | 2432 KB |
23.txt | AC | 12 ms | 2560 KB |
24.txt | AC | 13 ms | 2560 KB |
25.txt | AC | 16 ms | 2560 KB |
26.txt | AC | 16 ms | 2560 KB |
27.txt | AC | 16 ms | 2560 KB |
28.txt | AC | 16 ms | 2560 KB |
29.txt | AC | 15 ms | 2560 KB |
30.txt | AC | 15 ms | 2560 KB |
31.txt | AC | 14 ms | 2560 KB |
32.txt | AC | 15 ms | 2560 KB |
33.txt | AC | 16 ms | 2560 KB |
34.txt | AC | 13 ms | 2560 KB |
35.txt | AC | 16 ms | 2304 KB |
36.txt | AC | 12 ms | 2560 KB |
37.txt | AC | 11 ms | 2560 KB |
38.txt | AC | 11 ms | 2560 KB |
39.txt | AC | 18 ms | 2560 KB |
40.txt | AC | 11 ms | 2560 KB |
41.txt | AC | 12 ms | 2560 KB |
42.txt | AC | 10 ms | 896 KB |
43.txt | AC | 19 ms | 2560 KB |
44.txt | AC | 19 ms | 2560 KB |
45.txt | AC | 19 ms | 2560 KB |
46.txt | AC | 19 ms | 2560 KB |
47.txt | AC | 17 ms | 1152 KB |
48.txt | AC | 17 ms | 896 KB |
49.txt | AC | 1 ms | 128 KB |
50.txt | AC | 1 ms | 128 KB |
51.txt | AC | 1 ms | 128 KB |
52.txt | AC | 1 ms | 128 KB |
53.txt | AC | 1 ms | 128 KB |
54.txt | AC | 1 ms | 128 KB |
55.txt | AC | 1 ms | 128 KB |
56.txt | AC | 1 ms | 128 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 | 128 KB |
61.txt | AC | 1 ms | 128 KB |
62.txt | AC | 1 ms | 128 KB |
63.txt | AC | 1 ms | 128 KB |
64.txt | AC | 1 ms | 128 KB |
s1.txt | AC | 1 ms | 128 KB |
s2.txt | AC | 1 ms | 128 KB |
s3.txt | AC | 1 ms | 128 KB |
s4.txt | AC | 1 ms | 128 KB |