#include <bits/stdc++.h>
using namespace std;
#define int long long
int N, h[1000005];
multiset<int> s;
int32_t main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> N;
for (int i = 0; i < N; i++) {
cin >> h[i];
}
int c = 0;
for (int i = 0; i < N; i++) {
if (s.find(h[i] + 1) == s.end()) c++;
else s.erase(s.find(h[i] + 1));
s.insert(h[i]);
}
cout << c;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
6 ms |
512 KB |
Output is correct |
4 |
Correct |
6 ms |
512 KB |
Output is correct |
5 |
Correct |
295 ms |
9592 KB |
Output is correct |
6 |
Correct |
363 ms |
10360 KB |
Output is correct |
7 |
Correct |
293 ms |
8696 KB |
Output is correct |
8 |
Correct |
292 ms |
8312 KB |
Output is correct |
9 |
Correct |
304 ms |
9080 KB |
Output is correct |
10 |
Correct |
314 ms |
9208 KB |
Output is correct |