# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
124172 | 2019-07-02T15:19:56 Z | pedy4000 | Matching (CEOI11_mat) | C++14 | 129 ms | 24924 KB |
#include <algorithm> #include <cstring> #include <iostream> #include <vector> using namespace std; const int INPUT_MAXCHARS = 1 << 20; char buffer[INPUT_MAXCHARS]; struct FastReader { char *p; FastReader(): p(buffer) { fread(buffer, 1, sizeof buffer, stdin); } int next_int() { int remchars = INPUT_MAXCHARS - (p-buffer); if (remchars < 25) { memcpy(buffer, p, remchars); size_t cnt = fread(buffer+remchars, 1, sizeof buffer - remchars, stdin); if (remchars + cnt < sizeof buffer) { // assume EOF buffer[remchars + cnt] = 0; // make the value determinate } p = buffer; } while (*p < '0') { p++; } int val = 0; while (*p >= '0') { val = val*10 + (*p - '0'); ++p; } return val; } }; const int MAX_N = 1e6 + 6; int n, m; int Arr[MAX_N]; int Brr[MAX_N]; int Crr[MAX_N]; int F[MAX_N]; int sm[MAX_N]; int bg[MAX_N]; vector <int> ans; bool can (int *list, int l, int r) { int ind = r - l; if (list[r] < list[l + sm[ind]]) return false; if (list[l + bg[ind]] < list[r]) return false; return true; } void KMP() { F[1] = 0; F[2] = 1; int ind = 1; for (int i = 3; i <= n; i++) { while (ind && !can(Arr, i - ind - 1 , i - 1)) ind = F[ind]; ind++; F[i] = ind; } } void processRel() { sm[Crr[0]] = Crr[0]; for (int i = 1; i < n; i++) { sm[Crr[i]] = Crr[i]; int ind = Crr[i - 1]; while (sm[ind] != ind && Crr[i] < ind) ind = sm[ind]; if (ind <= Crr[i]) sm[Crr[i]] = ind; } bg[Crr[n - 1]] = Crr[n - 1]; for (int i = n - 2; ~i; i--) { bg[Crr[i]] = Crr[i]; int ind = Crr[i + 1]; while (bg[ind] != ind && Crr[i] < ind) ind = bg[ind]; if (ind <= Crr[i]) bg[Crr[i]] = ind; } } void findMatching() { int L = 0, R = 0; while (L < m) { while (R + 1 < L + n && R + 1 < m && can(Brr, L, R + 1)) R++; if (R - L == n - 1) ans.push_back(L + 1); if (L == R) L++, R++; else L += R - L + 1 - F[R - L + 1]; } } int main() { cin.sync_with_stdio(false); FastReader reader; n = reader.next_int(); m = reader.next_int(); for (int i = 0; i < n; i++) { Crr[i] = reader.next_int(); Crr[i]--; Arr[Crr[i]] = i; } processRel(); for (int i = 0; i < m; i++) Brr[i] = reader.next_int(); KMP(); findMatching(); printf("%lu\n", ans.size()); for (int l: ans) printf("%d ", l); return 0; } // S --> 5:45
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 2 ms | 376 KB | Output is correct |
2 | Correct | 2 ms | 380 KB | Output is correct |
3 | Correct | 2 ms | 376 KB | Output is correct |
4 | Correct | 2 ms | 376 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 2 ms | 376 KB | Output is correct |
2 | Correct | 2 ms | 380 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 3 ms | 632 KB | Output is correct |
2 | Correct | 2 ms | 632 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 2 ms | 632 KB | Output is correct |
2 | Correct | 2 ms | 632 KB | Output is correct |
3 | Correct | 2 ms | 504 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 7 ms | 2936 KB | Output is correct |
2 | Correct | 5 ms | 2296 KB | Output is correct |
3 | Correct | 11 ms | 3192 KB | Output is correct |
4 | Correct | 12 ms | 3192 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 10 ms | 3576 KB | Output is correct |
2 | Correct | 7 ms | 2296 KB | Output is correct |
3 | Correct | 10 ms | 2904 KB | Output is correct |
4 | Correct | 26 ms | 4336 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 11 ms | 3576 KB | Output is correct |
2 | Correct | 7 ms | 3064 KB | Output is correct |
3 | Correct | 8 ms | 2808 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 37 ms | 10492 KB | Output is correct |
2 | Correct | 115 ms | 24924 KB | Output is correct |
3 | Correct | 22 ms | 4984 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 32 ms | 11256 KB | Output is correct |
2 | Correct | 28 ms | 5348 KB | Output is correct |
3 | Correct | 129 ms | 23940 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 56 ms | 7252 KB | Output is correct |
2 | Correct | 122 ms | 16304 KB | Output is correct |
3 | Correct | 26 ms | 6796 KB | Output is correct |
4 | Correct | 59 ms | 24868 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 33 ms | 8400 KB | Output is correct |
2 | Correct | 27 ms | 6904 KB | Output is correct |
3 | Correct | 15 ms | 5368 KB | Output is correct |
4 | Correct | 59 ms | 22904 KB | Output is correct |