Submission #3447424
Source Code Expand
#include <cstdio> #include <iostream> #include <cstring> #include <algorithm> #include <bitset> using namespace std; const int N = 4010; const int mod = 998244353; inline int deg(const bitset <N> &b) { int t = N - 1; while (t >= 0 && !b[t]) t --; return t + 1; } int n; char buf[N]; inline void read(bitset <N> &b) { scanf("%s", buf); reverse(buf, buf + strlen(buf)); for (int i = 0; buf[i]; i ++) b[i] = (bool)(buf[i] - '0'); } bitset <N> X, A[10]; inline bitset <N> gcd(bitset <N> p, bitset <N> q) { int a = deg(p); int b = deg(q); while (true) { if (!a) return q; if (!b) return p; if (a < b) { swap(p, q); swap(a, b); } p ^= q << (a - b); while (a >= 0 && p[a] == 0) a --; a ++; } } int main() { scanf("%d", &n); read(X); for (int i = 1; i <= n; i ++) read(A[i]); for (int i = 2; i <= n; i ++) A[1] = gcd(A[1], A[i]); int ans = 0, j = deg(A[1]); for (int i = deg(X) - 1; i >= j - 1; i --) ans = ((ans << 1) + X[i]) % mod; for (int i = deg(X) - 1; i >= j; i --) if (X[i]) X ^= A[1] << (i - j + 1); for (int i = j - 1; ~ i; i --) if (A[1][i] != X[i]) { if (A[1][i] < X[i]) ans --; break; } ans = (ans + 1) % mod; printf("%d\n", ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - XorShift |
User | The_Unbeatable |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1331 Byte |
Status | WA |
Exec Time | 5 ms |
Memory | 256 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:45:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp: In function ‘void read(std::bitset<4010ul>&)’: ./Main.cpp:21:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", buf); ^
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1000 | ||||||
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, s1.txt, s2.txt, s3.txt, s4.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 3 ms | 256 KB |
02.txt | AC | 4 ms | 256 KB |
03.txt | AC | 3 ms | 256 KB |
04.txt | AC | 4 ms | 256 KB |
05.txt | WA | 4 ms | 256 KB |
06.txt | AC | 4 ms | 256 KB |
07.txt | WA | 2 ms | 256 KB |
08.txt | WA | 4 ms | 256 KB |
09.txt | AC | 4 ms | 256 KB |
10.txt | AC | 2 ms | 256 KB |
11.txt | AC | 4 ms | 256 KB |
12.txt | WA | 3 ms | 256 KB |
13.txt | WA | 4 ms | 256 KB |
14.txt | AC | 4 ms | 256 KB |
15.txt | WA | 3 ms | 256 KB |
16.txt | WA | 2 ms | 256 KB |
17.txt | WA | 4 ms | 256 KB |
18.txt | AC | 4 ms | 256 KB |
19.txt | WA | 4 ms | 256 KB |
20.txt | WA | 3 ms | 256 KB |
21.txt | AC | 4 ms | 256 KB |
22.txt | AC | 3 ms | 256 KB |
23.txt | WA | 2 ms | 256 KB |
24.txt | AC | 3 ms | 256 KB |
25.txt | AC | 3 ms | 256 KB |
26.txt | AC | 3 ms | 256 KB |
27.txt | WA | 2 ms | 256 KB |
28.txt | WA | 2 ms | 256 KB |
29.txt | AC | 1 ms | 256 KB |
30.txt | AC | 1 ms | 256 KB |
31.txt | WA | 4 ms | 256 KB |
32.txt | WA | 2 ms | 256 KB |
33.txt | AC | 5 ms | 256 KB |
34.txt | WA | 4 ms | 256 KB |
35.txt | WA | 1 ms | 256 KB |
36.txt | WA | 2 ms | 256 KB |
37.txt | WA | 4 ms | 256 KB |
38.txt | WA | 2 ms | 256 KB |
39.txt | AC | 4 ms | 256 KB |
40.txt | AC | 3 ms | 256 KB |
41.txt | WA | 2 ms | 256 KB |
42.txt | WA | 2 ms | 256 KB |
43.txt | AC | 3 ms | 256 KB |
44.txt | WA | 3 ms | 256 KB |
45.txt | AC | 2 ms | 256 KB |
46.txt | AC | 2 ms | 256 KB |
47.txt | AC | 2 ms | 256 KB |
48.txt | AC | 2 ms | 256 KB |
49.txt | WA | 1 ms | 256 KB |
50.txt | WA | 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 | 2 ms | 256 KB |
55.txt | AC | 3 ms | 256 KB |
56.txt | AC | 4 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 |