#include<bits/stdc++.h>
using namespace std;
using ll = long long;
ll n, ans, p, j, s, x;
int main() {
ll i, t, r;
cin >> n;
map < int, int > Used, Howmuch;
vector < pair < ll, ll > > v;
for ( i = 1; i <= n; i ++) {
cin >> x;
Howmuch[x] ++;
v.push_back(make_pair(x, i));
}
ans = 0;
sort ( v.begin(), v.end());
r = 0;
for ( i = n - 1; i >= 0; i --) {
x = v[i].second;
if ( Howmuch[v[i].first] == 1) {
ans ++;
if ( Used[x + 1] == 1) ans --;
if ( Used[x - 1] == 1) ans --;
Used[x] ++;
}
Howmuch[v[i].first] --;
r = max (r, ans);
}
cout << r << endl;
}
Compilation message
gw.cpp: In function 'int main()':
gw.cpp:7:8: warning: unused variable 't' [-Wunused-variable]
7 | ll i, t, r;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
340 KB |
Output is correct |
2 |
Correct |
2 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
2 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
32 ms |
2432 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
200 ms |
11200 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1037 ms |
55556 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1055 ms |
42356 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |