#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin >> n;
vector<int> h(n);
vector<int> cnt(1e6 + 1);
int res = 0;
for (int i = 0; i < n; i++) {
int h;
cin >> h;
if (!cnt[h]) {
res += 1;
} else {
cnt[h] -= 1;
}
cnt[h - 1] += 1;
}
cout << res;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4180 KB |
Output is correct |
2 |
Correct |
2 ms |
4180 KB |
Output is correct |
3 |
Correct |
2 ms |
4180 KB |
Output is correct |
4 |
Correct |
3 ms |
4180 KB |
Output is correct |
5 |
Correct |
62 ms |
10816 KB |
Output is correct |
6 |
Correct |
62 ms |
11144 KB |
Output is correct |
7 |
Correct |
51 ms |
9904 KB |
Output is correct |
8 |
Correct |
47 ms |
9864 KB |
Output is correct |
9 |
Correct |
57 ms |
10532 KB |
Output is correct |
10 |
Correct |
55 ms |
10400 KB |
Output is correct |