#include <iostream>
using namespace std;
long long n,i,s=0,x,x1,v[1000001];
long long v1[1000001];
int main()
{
cin>>n;
for(i=1; i<=n; i++)
{
cin>>v[i];
}
for(i=1; i<=n; i++)
{
if(v1[v[i]]>0)
{
v1[v[i]]--;
v1[v[i]-1]++;
}
else
{
s++;
v1[v[i]-1]++;
}
//cout << s << " " << v1[v[i]] << " " << v1[v[i]-1] << "\n";
}
cout<<s;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
2 ms |
340 KB |
Output is correct |
5 |
Correct |
170 ms |
6392 KB |
Output is correct |
6 |
Correct |
174 ms |
7188 KB |
Output is correct |
7 |
Correct |
174 ms |
5948 KB |
Output is correct |
8 |
Correct |
155 ms |
5960 KB |
Output is correct |
9 |
Correct |
162 ms |
6348 KB |
Output is correct |
10 |
Correct |
154 ms |
6452 KB |
Output is correct |