#include<bits/stdc++.h>
using namespace std;
const int N = 1e6 + 6;
int v[N];
int aib[N];
void upd(int poz, int val){
for(int i = poz; i < N ; i+= i&(-i))
aib[i] += val;
}
int query(int poz){
int ans = 0;
for(int i= poz; i > 0; i-= i&(-i))
ans+=aib[i];
return ans;
}
multiset<int> ms;
void dbg(){
cerr<<ms.size()<<"\n";
for(auto x: ms)
cerr<<x<<" ";
cerr<<"\nok\n";
}
const int SIZE=1<<10;
char buffer[SIZE];
int point=SIZE;
inline char adv(){
if(point==SIZE){
fread(buffer,1,SIZE,stdin);
point=0;
}
return buffer[point++];
}
inline int read(){
char c;
int x=0,sgn=1;
c=adv();
while(isdigit(c)==false && c!='-')
c=adv();
while(c=='-'){
sgn*=-1;
c=adv();
}
while(isdigit(c)){
x=x*10+c-'0';
c=adv();
}
return x*sgn;
}
int main()
{
//freopen(".in","r",stdin);
ios::sync_with_stdio(false);
cin.tie(0),cout.tie(0);
int n;
cin>>n;
for(int i=1;i<=n;i++){
cin>>v[i];
upd(v[i], 1);
}
int ans = 0;
for(int i= n; i>=1;){
int j = i;
ans++;
while(j>=1 && v[j] == v[i]){
upd(v[i], -1);
j--;
}
while(j>=1 && query(v[i] - 1) - query(v[j]) == 0){
upd(v[j], -1);
j--;
}
i = j;
}
cout<<ans;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
0 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
492 KB |
Output is correct |
| 11 |
Correct |
1 ms |
492 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
492 KB |
Output is correct |
| 16 |
Correct |
1 ms |
512 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
0 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
492 KB |
Output is correct |
| 11 |
Correct |
1 ms |
492 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
492 KB |
Output is correct |
| 16 |
Correct |
1 ms |
512 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
492 KB |
Output is correct |
| 19 |
Correct |
1 ms |
492 KB |
Output is correct |
| 20 |
Correct |
1 ms |
492 KB |
Output is correct |
| 21 |
Correct |
1 ms |
492 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
620 KB |
Output is correct |
| 26 |
Correct |
1 ms |
620 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
0 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
492 KB |
Output is correct |
| 11 |
Correct |
1 ms |
492 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
492 KB |
Output is correct |
| 16 |
Correct |
1 ms |
512 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
492 KB |
Output is correct |
| 19 |
Correct |
1 ms |
492 KB |
Output is correct |
| 20 |
Correct |
1 ms |
492 KB |
Output is correct |
| 21 |
Correct |
1 ms |
492 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
620 KB |
Output is correct |
| 26 |
Correct |
1 ms |
620 KB |
Output is correct |
| 27 |
Correct |
1 ms |
384 KB |
Output is correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Correct |
1 ms |
364 KB |
Output is correct |
| 30 |
Correct |
1 ms |
364 KB |
Output is correct |
| 31 |
Correct |
1 ms |
384 KB |
Output is correct |
| 32 |
Correct |
1 ms |
492 KB |
Output is correct |
| 33 |
Correct |
1 ms |
492 KB |
Output is correct |
| 34 |
Correct |
1 ms |
492 KB |
Output is correct |
| 35 |
Correct |
1 ms |
364 KB |
Output is correct |
| 36 |
Correct |
1 ms |
364 KB |
Output is correct |
| 37 |
Correct |
1 ms |
1644 KB |
Output is correct |
| 38 |
Correct |
1 ms |
1644 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
364 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
364 KB |
Output is correct |
| 8 |
Correct |
0 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
492 KB |
Output is correct |
| 10 |
Correct |
1 ms |
492 KB |
Output is correct |
| 11 |
Correct |
1 ms |
492 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
492 KB |
Output is correct |
| 16 |
Correct |
1 ms |
512 KB |
Output is correct |
| 17 |
Correct |
1 ms |
364 KB |
Output is correct |
| 18 |
Correct |
1 ms |
492 KB |
Output is correct |
| 19 |
Correct |
1 ms |
492 KB |
Output is correct |
| 20 |
Correct |
1 ms |
492 KB |
Output is correct |
| 21 |
Correct |
1 ms |
492 KB |
Output is correct |
| 22 |
Correct |
1 ms |
364 KB |
Output is correct |
| 23 |
Correct |
1 ms |
364 KB |
Output is correct |
| 24 |
Correct |
1 ms |
364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
620 KB |
Output is correct |
| 26 |
Correct |
1 ms |
620 KB |
Output is correct |
| 27 |
Correct |
1 ms |
384 KB |
Output is correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Correct |
1 ms |
364 KB |
Output is correct |
| 30 |
Correct |
1 ms |
364 KB |
Output is correct |
| 31 |
Correct |
1 ms |
384 KB |
Output is correct |
| 32 |
Correct |
1 ms |
492 KB |
Output is correct |
| 33 |
Correct |
1 ms |
492 KB |
Output is correct |
| 34 |
Correct |
1 ms |
492 KB |
Output is correct |
| 35 |
Correct |
1 ms |
364 KB |
Output is correct |
| 36 |
Correct |
1 ms |
364 KB |
Output is correct |
| 37 |
Correct |
1 ms |
1644 KB |
Output is correct |
| 38 |
Correct |
1 ms |
1644 KB |
Output is correct |
| 39 |
Correct |
79 ms |
2380 KB |
Output is correct |
| 40 |
Correct |
132 ms |
3564 KB |
Output is correct |
| 41 |
Correct |
69 ms |
2028 KB |
Output is correct |
| 42 |
Correct |
60 ms |
1900 KB |
Output is correct |
| 43 |
Correct |
42 ms |
1516 KB |
Output is correct |
| 44 |
Correct |
175 ms |
4460 KB |
Output is correct |
| 45 |
Correct |
163 ms |
4260 KB |
Output is correct |
| 46 |
Correct |
172 ms |
4332 KB |
Output is correct |
| 47 |
Correct |
150 ms |
4332 KB |
Output is correct |
| 48 |
Correct |
159 ms |
4460 KB |
Output is correct |
| 49 |
Correct |
200 ms |
8300 KB |
Output is correct |
| 50 |
Correct |
184 ms |
8172 KB |
Output is correct |
| 51 |
Correct |
207 ms |
8172 KB |
Output is correct |
| 52 |
Correct |
187 ms |
8300 KB |
Output is correct |
| 53 |
Correct |
197 ms |
8172 KB |
Output is correct |
| 54 |
Correct |
186 ms |
8172 KB |
Output is correct |
| 55 |
Correct |
224 ms |
8212 KB |
Output is correct |
| 56 |
Correct |
219 ms |
14828 KB |
Output is correct |
| 57 |
Correct |
226 ms |
14828 KB |
Output is correct |
| 58 |
Correct |
221 ms |
14828 KB |
Output is correct |
| 59 |
Correct |
216 ms |
14956 KB |
Output is correct |
| 60 |
Correct |
227 ms |
15084 KB |
Output is correct |
| 61 |
Correct |
222 ms |
14828 KB |
Output is correct |
| 62 |
Correct |
222 ms |
14828 KB |
Output is correct |
