#include <iostream>
using namespace std;
int tab[1000005] {};
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
long long med,ile=2,med2=0,n;
bool z=1;
cin>>n;
for (int i=0;i<n;i++)
{cin>>tab[i];}
if (n==1)
{cout<<"3 1";
return 0;}
med=n+1;
for (int i=0;i<n-2;i++)
{
if (tab[i]*2<med)
{//ile++;
med++;}
else if (tab[i]*2>med)
{med--;}
if (med+n-i-1==(2*n)+1) {ile++;}
else {
if (tab[i]>tab[i+1]) {med++;}
else {med--;}
}
}
med=n+1;
for (int i=n-1;i>1;i--)
{
if (tab[i]*2<med)
{//ile++;
med++;}
else if (tab[i]*2>med)
{med--;}
if ((med+i)==(2*n)+1) {ile++;}
else {
if (tab[i]>tab[i+1]) {med2++;}
else {med2--;}
}
}
med=n+1;
for (int i=0;i<n-3;i++)
{
if (tab[i]*2<med)
{med++;
med2=med;}
else if (tab[i]*2>med)
{med--;
med2=med;}
else {
cout<<tab[i]<<endl;
if (tab[i]>tab[i+1])
{med2=med;
med++;}
else
{med2=med;
med--;}
}
for (int j=n-1;j>i+2;j--)
{
if (tab[j]*2<med2)
{
med2++;}
else if (tab[j]*2>med2)
{med2--;}
else {
if (tab[j]>tab[j+1]) {med2++;}
else {med2--;}
}
if (med2+j-i-1==(n*2)+1) {ile++;}
}
}
cout<<n+n+1<<" "<<ile;
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 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | #include <iostream> using namespace std; int tab[1000005] {}; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); long long med,ile=2,med2=0,n; bool z=1; cin>>n; for (int i=0;i<n;i++) {cin>>tab[i];} if (n==1) {cout<<"3 1"; return 0;} med=n+1; for (int i=0;i<n-2;i++) { if (tab[i]*2<med) {//ile++; med++;} else if (tab[i]*2>med) {med--;} if (med+n-i-1==(2*n)+1) {ile++;} else { if (tab[i]>tab[i+1]) {med++;} else {med--;} } } med=n+1; for (int i=n-1;i>1;i--) { if (tab[i]*2<med) {//ile++; med++;} else if (tab[i]*2>med) {med--;} if ((med+i)==(2*n)+1) {ile++;} else { if (tab[i]>tab[i+1]) {med2++;} else {med2--;} } } med=n+1; for (int i=0;i<n-3;i++) { if (tab[i]*2<med) {med++; med2=med;} else if (tab[i]*2>med) {med--; med2=med;} else { cout<<tab[i]<<endl; if (tab[i]>tab[i+1]) {med2=med; med++;} else {med2=med; med--;} } for (int j=n-1;j>i+2;j--) { if (tab[j]*2<med2) { med2++;} else if (tab[j]*2>med2) {med2--;} else { if (tab[j]>tab[j+1]) {med2++;} else {med2--;} } if (med2+j-i-1==(n*2)+1) {ile++;} } } cout<<n+n+1<<" "<<ile; return 0; } |
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