#include <bits/stdc++.h>
#define pb push_back
#define ll long long
#define ull unsigned long long
#define mp make_pair
#define si short int
#define speed ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define pill pair<ll,ll>
#define f first
#define s second
#define pilc pair<ll,char>
#define all(a) (a).begin(),(a).end()
#define rep(s,e,step) for(int i = (s); i < (e) ; i += step)
#define vrep(s,e,step) for(int j = (s); j < (e) ; j += step)
#define ex exit(0)
#define sz(a) (a).size()
#define triple pair<pill, ll>
#define pinode pair<node*, node*>
#define quadra pair<pill, pill>
#define ld long double
using namespace std;
const ll N = 1e6 + 10;
const ll M = 1e4 + 10;
const ll big = 1e17;
const ll hsh2 = 1964325029;
const long long mod = 1e9 + 7;
const long double EPS = 1e-10;
const ll block = 1e7;
const ll shift = 2e3;
const ld pi = acos(-1.0);
ll n, m;
ll a[N], was[N];
int main() {
speed;
cin >> n;
ll ans = 1;
for(int i = 1; i <= n; i++) {
cin >> a[i];
}
for(int i = 1; i < n; i++) {
if(was[a[i]])
assert(0);
was[a[i]] = 1;
if(a[i] > a[i + 1])
ans++;
else {
ll can = 0;
for(int j = a[i] + 1; j < a[i + 1]; j++) {
if(was[j])
can = 1;
}
ans += can;
}
}
if(was[a[n]])
assrt(0)
cout << ans << '\n';
}
/*
*/
Compilation message
money.cpp: In function 'int main()':
money.cpp:60:3: error: 'assrt' was not declared in this scope; did you mean 'assert'?
60 | assrt(0)
| ^~~~~
| assert
