#include <bits/stdc++.h>
using namespace std;
const int mxN = 1e6 + 123;
int A[mxN], B[mxN], R[mxN];
int main() {
ios_base :: sync_with_stdio(false); cin.tie(nullptr);
int N; cin >> N;
for (int i = 1; i <= N; ++i) cin >> A[i];
R[N] = N;
for (int i = N - 1; i > 0; i--) {
if (A[i] <= A[i + 1]) R[i] = R[i + 1];
else R[i] = i;
}
set <int> st;
int ans = 0;
for (int i = 1; i <= N; ++i) {
++ans;
if (i == 1) {
for (int j = i; j <= R[i]; ++j) st.insert(A[j]);
i = R[i];
continue;
}
if (A[i] >= *(--st.end())) {
for (int j = i; j <= R[i]; ++j) st.insert(A[j]);
i = R[i];
continue;
}int lb = i, rb = R[i], j = i;
while (rb >= lb) {
int md = (lb + rb) / 2;
// can or not
if (A[md] <= *st.begin()) {
j = md;
lb = md + 1;
continue;
}
int l = *st.upper_bound(A[i]);
int r = *(--st.lower_bound(A[md]));
if (l > r) {
j = md;
lb = md + 1;
}else rb = md - 1;
}
for (int k = i; k <= j; ++k) st.insert(A[k]);
i = j;
}
cout << ans;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
0 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
0 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
0 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
0 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
0 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
368 KB |
Output is correct |
| 22 |
Correct |
0 ms |
364 KB |
Output is correct |
| 23 |
Correct |
0 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
0 ms |
364 KB |
Output is correct |
| 26 |
Correct |
0 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
0 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
0 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
0 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
368 KB |
Output is correct |
| 22 |
Correct |
0 ms |
364 KB |
Output is correct |
| 23 |
Correct |
0 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
0 ms |
364 KB |
Output is correct |
| 26 |
Correct |
0 ms |
364 KB |
Output is correct |
| 27 |
Correct |
1 ms |
364 KB |
Output is correct |
| 28 |
Correct |
1 ms |
364 KB |
Output is correct |
| 29 |
Correct |
1 ms |
364 KB |
Output is correct |
| 30 |
Correct |
1 ms |
364 KB |
Output is correct |
| 31 |
Correct |
1 ms |
364 KB |
Output is correct |
| 32 |
Correct |
1 ms |
364 KB |
Output is correct |
| 33 |
Correct |
1 ms |
364 KB |
Output is correct |
| 34 |
Correct |
1 ms |
364 KB |
Output is correct |
| 35 |
Correct |
1 ms |
364 KB |
Output is correct |
| 36 |
Correct |
1 ms |
364 KB |
Output is correct |
| 37 |
Correct |
1 ms |
364 KB |
Output is correct |
| 38 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
0 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
0 ms |
364 KB |
Output is correct |
| 8 |
Correct |
1 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
0 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
368 KB |
Output is correct |
| 22 |
Correct |
0 ms |
364 KB |
Output is correct |
| 23 |
Correct |
0 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
0 ms |
364 KB |
Output is correct |
| 26 |
Correct |
0 ms |
364 KB |
Output is correct |
| 27 |
Correct |
1 ms |
364 KB |
Output is correct |
| 28 |
Correct |
1 ms |
364 KB |
Output is correct |
| 29 |
Correct |
1 ms |
364 KB |
Output is correct |
| 30 |
Correct |
1 ms |
364 KB |
Output is correct |
| 31 |
Correct |
1 ms |
364 KB |
Output is correct |
| 32 |
Correct |
1 ms |
364 KB |
Output is correct |
| 33 |
Correct |
1 ms |
364 KB |
Output is correct |
| 34 |
Correct |
1 ms |
364 KB |
Output is correct |
| 35 |
Correct |
1 ms |
364 KB |
Output is correct |
| 36 |
Correct |
1 ms |
364 KB |
Output is correct |
| 37 |
Correct |
1 ms |
364 KB |
Output is correct |
| 38 |
Correct |
1 ms |
364 KB |
Output is correct |
| 39 |
Correct |
65 ms |
4096 KB |
Output is correct |
| 40 |
Correct |
130 ms |
6508 KB |
Output is correct |
| 41 |
Correct |
52 ms |
3436 KB |
Output is correct |
| 42 |
Correct |
57 ms |
3052 KB |
Output is correct |
| 43 |
Correct |
42 ms |
2284 KB |
Output is correct |
| 44 |
Correct |
145 ms |
8172 KB |
Output is correct |
| 45 |
Correct |
143 ms |
8172 KB |
Output is correct |
| 46 |
Correct |
145 ms |
8300 KB |
Output is correct |
| 47 |
Correct |
115 ms |
8124 KB |
Output is correct |
| 48 |
Correct |
123 ms |
8332 KB |
Output is correct |
| 49 |
Correct |
724 ms |
26604 KB |
Output is correct |
| 50 |
Correct |
709 ms |
26712 KB |
Output is correct |
| 51 |
Correct |
710 ms |
26740 KB |
Output is correct |
| 52 |
Correct |
744 ms |
26732 KB |
Output is correct |
| 53 |
Correct |
727 ms |
26744 KB |
Output is correct |
| 54 |
Correct |
733 ms |
26736 KB |
Output is correct |
| 55 |
Execution timed out |
1551 ms |
55128 KB |
Time limit exceeded |
| 56 |
Halted |
0 ms |
0 KB |
- |
