#include <bits/stdc++.h>
#define ios ios_base::sync_with_stdio(0); cin.tie(0);
#define pb push_back
using namespace std;
typedef long long ll;
const int N = 1e6 + 11;
const int MAX = 1e6;
ll n, res;
ll a[N], t[4 * N];
void upd(ll k, ll x, ll v = 1, ll l = 1, ll r = MAX){
if(l == r){
t[v] += x;
return;
}
ll md = (l + r) / 2;
if(k <= md) upd(k, x, v + v, l, md);
else upd(k, x, v + v + 1, md + 1, r);
t[v] = t[v + v] + t[v + v + 1];
}
ll get(ll tl, ll tr, ll v = 1, ll l = 1, ll r = MAX){
if(r < tl || tr < l) return 0;
if(tl <= l && r <= tr) return t[v];
ll md = (l + r) / 2;
return get(tl, tr, v + v, l, md) + get(tl, tr, v + v + 1, md + 1, r);
}
void sol(){
cin >> n, res = 0;
for(ll i = 1; i <= n; i++) cin >> a[i];
for(ll i = 1; i <= n;){
ll j = i;
while(j < n && a[j] <= a[j + 1] && get(a[j] + 1, a[j + 1] - 1) == 0) j++;
// cout << i << ' ' << j << '\n';
while(i <= j) upd(a[i], 1), i++;
res++;
}
cout << res;
}
signed main(){
ios
sol();
// slow();
// stress();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
6480 KB |
Output is correct |
2 |
Correct |
2 ms |
6480 KB |
Output is correct |
3 |
Correct |
1 ms |
6480 KB |
Output is correct |
4 |
Correct |
2 ms |
6480 KB |
Output is correct |
5 |
Correct |
2 ms |
4564 KB |
Output is correct |
6 |
Correct |
2 ms |
6480 KB |
Output is correct |
7 |
Correct |
2 ms |
6736 KB |
Output is correct |
8 |
Correct |
2 ms |
6480 KB |
Output is correct |
9 |
Correct |
2 ms |
6736 KB |
Output is correct |
10 |
Correct |
1 ms |
4688 KB |
Output is correct |
11 |
Correct |
2 ms |
8528 KB |
Output is correct |
12 |
Incorrect |
2 ms |
12624 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
6480 KB |
Output is correct |
2 |
Correct |
2 ms |
6480 KB |
Output is correct |
3 |
Correct |
1 ms |
6480 KB |
Output is correct |
4 |
Correct |
2 ms |
6480 KB |
Output is correct |
5 |
Correct |
2 ms |
4564 KB |
Output is correct |
6 |
Correct |
2 ms |
6480 KB |
Output is correct |
7 |
Correct |
2 ms |
6736 KB |
Output is correct |
8 |
Correct |
2 ms |
6480 KB |
Output is correct |
9 |
Correct |
2 ms |
6736 KB |
Output is correct |
10 |
Correct |
1 ms |
4688 KB |
Output is correct |
11 |
Correct |
2 ms |
8528 KB |
Output is correct |
12 |
Incorrect |
2 ms |
12624 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
6480 KB |
Output is correct |
2 |
Correct |
2 ms |
6480 KB |
Output is correct |
3 |
Correct |
1 ms |
6480 KB |
Output is correct |
4 |
Correct |
2 ms |
6480 KB |
Output is correct |
5 |
Correct |
2 ms |
4564 KB |
Output is correct |
6 |
Correct |
2 ms |
6480 KB |
Output is correct |
7 |
Correct |
2 ms |
6736 KB |
Output is correct |
8 |
Correct |
2 ms |
6480 KB |
Output is correct |
9 |
Correct |
2 ms |
6736 KB |
Output is correct |
10 |
Correct |
1 ms |
4688 KB |
Output is correct |
11 |
Correct |
2 ms |
8528 KB |
Output is correct |
12 |
Incorrect |
2 ms |
12624 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
6480 KB |
Output is correct |
2 |
Correct |
2 ms |
6480 KB |
Output is correct |
3 |
Correct |
1 ms |
6480 KB |
Output is correct |
4 |
Correct |
2 ms |
6480 KB |
Output is correct |
5 |
Correct |
2 ms |
4564 KB |
Output is correct |
6 |
Correct |
2 ms |
6480 KB |
Output is correct |
7 |
Correct |
2 ms |
6736 KB |
Output is correct |
8 |
Correct |
2 ms |
6480 KB |
Output is correct |
9 |
Correct |
2 ms |
6736 KB |
Output is correct |
10 |
Correct |
1 ms |
4688 KB |
Output is correct |
11 |
Correct |
2 ms |
8528 KB |
Output is correct |
12 |
Incorrect |
2 ms |
12624 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |