#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std ;
using namespace __gnu_pbds;
#define int long long int
#define ordered_set tree<pair<int,int>,null_type,less<pair<int,int>>,rb_tree_tag,tree_order_statistics_node_update>
#define CEIL(p1, p2) (p1+p2-1)/p2
#define all(a) a.begin() , a.end()
#define alr(a) a.rbegin() , a.rend()
#define FreI(pr1) freopen(pr1, "r", stdin);
#define FreO(pr1) freopen(pr1, "w", stdout);
int32_t main(){
ios_base::sync_with_stdio(0), cin.tie(0),cout.tie(0);
int n ;
cin >> n;
vector < int > a(n);
for( auto &i : a ) cin >> i;
int ans = 0 ;
a.push_back(0);
for( int i = 0 ; i < n ; i++ ){
while ( i < n && a[i] - 1 == a[i+1]) i++;
ans++;
}
cout << ans;
return 0 ;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
3 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
4 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
5 |
Incorrect |
52 ms |
12660 KB |
Output isn't correct |
6 |
Incorrect |
59 ms |
14164 KB |
Output isn't correct |
7 |
Incorrect |
52 ms |
11672 KB |
Output isn't correct |
8 |
Incorrect |
46 ms |
11608 KB |
Output isn't correct |
9 |
Incorrect |
51 ms |
12180 KB |
Output isn't correct |
10 |
Incorrect |
49 ms |
12676 KB |
Output isn't correct |