//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ordered_set tree <pair <int, int>, null_type, less <pair <int, int> >, rb_tree_tag, tree_order_statistics_node_update>
using namespace __gnu_pbds;
#define ll long long
#define db double
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define mp make_pair
#define size(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define low_b lower_bound
#define endl "\n"
//#define int long long
using namespace std;
void dout() {
cerr << endl;
}
template <typename Head, typename... Tail>
void dout(Head H, Tail... T) {
cerr << H << ' ';
dout(T...);
}
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair <int, int> pii;
const int N = 1000003, M = 1000000;
int n, a[N], fen[N];
void upd(int x) {
for (; x <= M; x |= (x + 1)) {
fen[x]++;
}
}
int get(int x) {
int res = 0;
for (; x >= 0; x = (x & (x + 1)) - 1) {
res += fen[x];
}
return res;
}
void solve(int tc) {
// check for (int i = 0; i < n; j++)
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
int j = 1, ans = 0, i = 1;
while (i <= n) {
while (j <= n && ((a[j] >= a[j - 1] && get(a[j] - 1) - get(a[i]) <= 0) || j == i)) {
j++;
}
for (int k = i; k < j; k++) {
upd(a[k]);
}
ans++;
i = j;
}
cout << ans;
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
// freopen("input.txt", "r", stdin);
// freopen("output.txt", "w", stdout);
int tc = 1;
// cin >> tc;
for (int i = 0; i < tc; i++) {
solve(i);
// cleanup();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
420 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
420 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
504 KB |
Output is correct |
19 |
Correct |
2 ms |
632 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
504 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
548 KB |
Output is correct |
26 |
Correct |
2 ms |
632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
420 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
504 KB |
Output is correct |
19 |
Correct |
2 ms |
632 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
504 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
548 KB |
Output is correct |
26 |
Correct |
2 ms |
632 KB |
Output is correct |
27 |
Correct |
3 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
444 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
35 |
Correct |
2 ms |
380 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
3 ms |
1528 KB |
Output is correct |
38 |
Correct |
3 ms |
1656 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
420 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
0 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
504 KB |
Output is correct |
11 |
Correct |
2 ms |
504 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
384 KB |
Output is correct |
15 |
Correct |
2 ms |
504 KB |
Output is correct |
16 |
Correct |
2 ms |
504 KB |
Output is correct |
17 |
Correct |
2 ms |
504 KB |
Output is correct |
18 |
Correct |
2 ms |
504 KB |
Output is correct |
19 |
Correct |
2 ms |
632 KB |
Output is correct |
20 |
Correct |
2 ms |
380 KB |
Output is correct |
21 |
Correct |
2 ms |
504 KB |
Output is correct |
22 |
Correct |
2 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
376 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
548 KB |
Output is correct |
26 |
Correct |
2 ms |
632 KB |
Output is correct |
27 |
Correct |
3 ms |
376 KB |
Output is correct |
28 |
Correct |
2 ms |
376 KB |
Output is correct |
29 |
Correct |
2 ms |
376 KB |
Output is correct |
30 |
Correct |
2 ms |
376 KB |
Output is correct |
31 |
Correct |
2 ms |
376 KB |
Output is correct |
32 |
Correct |
2 ms |
444 KB |
Output is correct |
33 |
Correct |
2 ms |
376 KB |
Output is correct |
34 |
Correct |
2 ms |
504 KB |
Output is correct |
35 |
Correct |
2 ms |
380 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
3 ms |
1528 KB |
Output is correct |
38 |
Correct |
3 ms |
1656 KB |
Output is correct |
39 |
Correct |
85 ms |
5496 KB |
Output is correct |
40 |
Correct |
148 ms |
5240 KB |
Output is correct |
41 |
Correct |
71 ms |
4344 KB |
Output is correct |
42 |
Correct |
64 ms |
4088 KB |
Output is correct |
43 |
Correct |
46 ms |
2296 KB |
Output is correct |
44 |
Correct |
182 ms |
7856 KB |
Output is correct |
45 |
Correct |
191 ms |
11140 KB |
Output is correct |
46 |
Correct |
175 ms |
11256 KB |
Output is correct |
47 |
Correct |
154 ms |
11160 KB |
Output is correct |
48 |
Correct |
173 ms |
11128 KB |
Output is correct |
49 |
Correct |
192 ms |
14952 KB |
Output is correct |
50 |
Correct |
192 ms |
15056 KB |
Output is correct |
51 |
Correct |
195 ms |
14584 KB |
Output is correct |
52 |
Correct |
187 ms |
14968 KB |
Output is correct |
53 |
Correct |
191 ms |
14936 KB |
Output is correct |
54 |
Correct |
196 ms |
14868 KB |
Output is correct |
55 |
Correct |
212 ms |
14908 KB |
Output is correct |
56 |
Correct |
211 ms |
14948 KB |
Output is correct |
57 |
Correct |
223 ms |
14840 KB |
Output is correct |
58 |
Correct |
235 ms |
15036 KB |
Output is correct |
59 |
Correct |
207 ms |
14840 KB |
Output is correct |
60 |
Correct |
212 ms |
14964 KB |
Output is correct |
61 |
Correct |
215 ms |
14956 KB |
Output is correct |
62 |
Correct |
222 ms |
14592 KB |
Output is correct |