#include <iostream>
using namespace std;
const int MAXN = 1000000 + 7;
int tab[MAXN];
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n; cin>>n;
int l = 0, p = n - 1;
for(int i = 0; i < n; i++)
{
cin>>tab[i];
}
// wszystkie i sam n
int ile = n == 1 ? 1 : 2;
int myMed = n + 1;
int target = myMed + n;
int len = n;
while(len - 1 > 1)
{
//cout<<"rozpatrywany: "<<l<<' '<<p<<'\n';
if(2 * tab[l] < myMed && myMed + 1 + (len - 1) == target)
{
ile++;
//cout<<"dodano: "<<l + 1<<' '<<p<<'\n';
}
if(2 * tab[p] < myMed && myMed + 1 + (len - 1) == target)
{
ile++;
//cout<<"dodano: "<<l<<' '<<p - 1<<'\n';
}
if(tab[p] < tab[l])
{
if(2 * tab[p] < myMed) myMed += 1;
else if(2 * tab[p] > myMed) myMed -= 1;
p--;
len--;
}
else
{
if(2 * tab[l] < myMed) myMed += 1;
else if(2 * tab[l] > myMed) myMed -= 1;
l++;
len--;
}
}
cout<<2*n + 1<<' '<<ile<<'\n';
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #include <iostream> using namespace std; const int MAXN = 1000000 + 7; int tab[MAXN]; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int n; cin>>n; int l = 0, p = n - 1; for(int i = 0; i < n; i++) { cin>>tab[i]; } // wszystkie i sam n int ile = n == 1 ? 1 : 2; int myMed = n + 1; int target = myMed + n; int len = n; while(len - 1 > 1) { //cout<<"rozpatrywany: "<<l<<' '<<p<<'\n'; if(2 * tab[l] < myMed && myMed + 1 + (len - 1) == target) { ile++; //cout<<"dodano: "<<l + 1<<' '<<p<<'\n'; } if(2 * tab[p] < myMed && myMed + 1 + (len - 1) == target) { ile++; //cout<<"dodano: "<<l<<' '<<p - 1<<'\n'; } if(tab[p] < tab[l]) { if(2 * tab[p] < myMed) myMed += 1; else if(2 * tab[p] > myMed) myMed -= 1; p--; len--; } else { if(2 * tab[l] < myMed) myMed += 1; else if(2 * tab[l] > myMed) myMed -= 1; l++; len--; } } cout<<2*n + 1<<' '<<ile<<'\n'; return 0; } |
English