Submission #1611989
Source Code Expand
#include <cstdio> #include <iostream> #include <algorithm> #include <cstring> #include <cmath> #define For(i, j, k) for(int i = j; i <= k; i++) #define Forr(i, j, k) for(int i = j; i >= k; i--) using namespace std; typedef long long LL; const int N = 100010; const int Mod = 1e9 + 7; const LL oo = 2e18; int n, pos[2], nxt[N][2]; LL lim[2], S[N], addv[2]; LL dp[N][2], delt[N][2]; int main(){ scanf("%d%lld%lld", &n, &lim[0], &lim[1]); dp[0][0] = dp[0][1] = 1; For(i, 1, n) scanf("%lld", &S[i]); S[0] = -oo, S[n + 1] = oo; For(j, 0, 1){ nxt[n][j] = n; Forr(i, n - 1, 0) nxt[i][j] = S[i + 1] - S[i] < lim[j] ? i : nxt[i + 1][j]; } pos[0] = pos[1] = 1; For(i, 0, n) For(j, 0, 1){ (addv[j] += delt[i][j]) %= Mod; if(i == n) continue; LL v = (dp[i][j] + addv[j]) % Mod; while(pos[j] <= n && S[pos[j]] - S[i] < lim[j]) ++pos[j]; int r = nxt[i + 1][j ^ 1], l = max(i + 1, pos[j] - 1); // printf("%d %d -> [%d, %d]\n", i, j, l, r); if(l <= r) (delt[l][j ^ 1] += v) %= Mod, (delt[r + 1][j ^ 1] += Mod - v) %= Mod; } printf("%lld\n", (addv[0] + addv[1]) % Mod); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Division into Two |
User | dy0607 |
Language | C++14 (GCC 5.4.1) |
Score | 1100 |
Code Size | 1140 Byte |
Status | AC |
Exec Time | 22 ms |
Memory | 4480 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:23:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%lld%lld", &n, &lim[0], &lim[1]); ^ ./Main.cpp:25:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] For(i, 1, n) scanf("%lld", &S[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 | 22 ms | 4480 KB |
02.txt | AC | 20 ms | 4480 KB |
03.txt | AC | 21 ms | 4480 KB |
04.txt | AC | 20 ms | 4480 KB |
05.txt | AC | 20 ms | 4480 KB |
06.txt | AC | 20 ms | 4480 KB |
07.txt | AC | 21 ms | 4480 KB |
08.txt | AC | 21 ms | 4480 KB |
09.txt | AC | 22 ms | 4480 KB |
10.txt | AC | 22 ms | 4480 KB |
11.txt | AC | 21 ms | 4480 KB |
12.txt | AC | 21 ms | 4480 KB |
13.txt | AC | 21 ms | 4480 KB |
14.txt | AC | 21 ms | 4480 KB |
15.txt | AC | 20 ms | 4480 KB |
16.txt | AC | 14 ms | 4480 KB |
17.txt | AC | 16 ms | 4480 KB |
18.txt | AC | 18 ms | 4480 KB |
19.txt | AC | 16 ms | 4480 KB |
20.txt | AC | 17 ms | 4480 KB |
21.txt | AC | 17 ms | 4480 KB |
22.txt | AC | 17 ms | 4480 KB |
23.txt | AC | 14 ms | 4480 KB |
24.txt | AC | 16 ms | 4480 KB |
25.txt | AC | 19 ms | 4480 KB |
26.txt | AC | 19 ms | 4480 KB |
27.txt | AC | 19 ms | 4480 KB |
28.txt | AC | 19 ms | 4480 KB |
29.txt | AC | 18 ms | 4480 KB |
30.txt | AC | 18 ms | 4480 KB |
31.txt | AC | 17 ms | 4480 KB |
32.txt | AC | 18 ms | 4480 KB |
33.txt | AC | 18 ms | 4480 KB |
34.txt | AC | 15 ms | 4480 KB |
35.txt | AC | 19 ms | 4480 KB |
36.txt | AC | 14 ms | 4480 KB |
37.txt | AC | 14 ms | 4480 KB |
38.txt | AC | 14 ms | 4480 KB |
39.txt | AC | 22 ms | 4480 KB |
40.txt | AC | 14 ms | 4480 KB |
41.txt | AC | 15 ms | 4480 KB |
42.txt | AC | 12 ms | 2944 KB |
43.txt | AC | 21 ms | 4480 KB |
44.txt | AC | 22 ms | 4480 KB |
45.txt | AC | 22 ms | 4480 KB |
46.txt | AC | 22 ms | 4480 KB |
47.txt | AC | 22 ms | 4480 KB |
48.txt | AC | 22 ms | 4480 KB |
49.txt | AC | 2 ms | 2304 KB |
50.txt | AC | 2 ms | 2304 KB |
51.txt | AC | 2 ms | 2304 KB |
52.txt | AC | 2 ms | 2304 KB |
53.txt | AC | 2 ms | 2304 KB |
54.txt | AC | 2 ms | 2304 KB |
55.txt | AC | 2 ms | 2304 KB |
56.txt | AC | 2 ms | 2304 KB |
57.txt | AC | 2 ms | 2304 KB |
58.txt | AC | 2 ms | 2304 KB |
59.txt | AC | 2 ms | 2304 KB |
60.txt | AC | 2 ms | 2304 KB |
61.txt | AC | 2 ms | 2304 KB |
62.txt | AC | 2 ms | 2304 KB |
63.txt | AC | 2 ms | 2304 KB |
64.txt | AC | 2 ms | 2304 KB |
s1.txt | AC | 2 ms | 2304 KB |
s2.txt | AC | 2 ms | 2304 KB |
s3.txt | AC | 2 ms | 2304 KB |
s4.txt | AC | 2 ms | 2304 KB |