#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define ar array
#define vo vector
#define pb push_back
#define all(x) begin(x), end(x)
#define sz(x) (ll)(x).size()
#define rep(i, a, b) for(ll i=(a); i<(b); i++)
#define repd(i, a, b) for(ll i=(a); i>=(b); i--)
int main() {
cin.tie(0)->sync_with_stdio(0);
int n;
cin >> n;
int cnt[int(1e6)+1]{};
rep(i, 0, n) {
int h;
cin >> h;
cnt[h]++;
if(h+1<=int(1e6+1)&&cnt[h+1])
cnt[h+1]--;
}
int ans=0;
rep(i, 1, 1e6+1)
ans+=cnt[i];
cout << ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4180 KB |
Output is correct |
2 |
Correct |
3 ms |
4236 KB |
Output is correct |
3 |
Correct |
4 ms |
4248 KB |
Output is correct |
4 |
Correct |
4 ms |
4244 KB |
Output is correct |
5 |
Correct |
56 ms |
7756 KB |
Output is correct |
6 |
Correct |
55 ms |
7764 KB |
Output is correct |
7 |
Correct |
44 ms |
7020 KB |
Output is correct |
8 |
Correct |
46 ms |
7080 KB |
Output is correct |
9 |
Correct |
50 ms |
7408 KB |
Output is correct |
10 |
Correct |
50 ms |
7248 KB |
Output is correct |