#include <bits/stdc++.h>
#define INF 1000000021
#define MOD 1000000007
#define pb push_back
#define sqr(a) (a)*(a)
#define M(a, b) make_pair(a,b)
#define int long long
#define T(a, b, c) make_pair(a, make_pair(b, c))
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define deb(x) cerr << #x << " = " << x << '\n'
#define N 222222
using namespace std;
//using namespace __gnu_pbds;
typedef long double ld;
typedef pair<int,int> pii;
typedef vector<int> vi;
//typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
const ld pi = 2 * acos(0.0);
//int month[] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
int gcd(int a, int b) {
return b ? gcd (b, a % b) : a;
}
string reverse(string s){
int n = s.length();
for (int i = 0; i < (n+1) / 2; i++) swap(s[i], s[n - i - 1]);
return s;
}
int binpow (int a, int n) {
if (n == 0)
return 1LL;
if (n % 2 == 1)
return ((binpow (a, n-1)%MOD) * 1LL * a)%MOD;
else {
int b = binpow (a, n/2)%MOD;
return (b * b)%MOD;
}
}
//void swap(int &a, int &b){
// b = (a+b) - (a=b);
//}
void solve(){
int n, ans = 0;
cin >> n;
vi a(n);
set<int> s;
s.insert(INT_MAX);
for (int i = 0; i < n; ++i)
{
cin >> a[i];
}
for (int i = 0; i < n; ++i)
{
int up = *s.upper_bound(a[i]);
i++;
while(a[i] < a[i - 1] && a[i] < up) i++, s.insert(a[i - 1]);
s.insert(a[i]);
ans++;
}
cout << ans;
}
signed main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int t=1;
// cin>>t;
while(t--){
solve();
cout << "\n";
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |