#include <iostream>
#include <vector>
using namespace std;
bool debug = false;
void printHurray(int a[], int l, int r) {
cout << "!! hurray: ";
for (int i = l+1; i < r; i++) {
cout << a[i] << " ";
}
cout << endl;
}
int main()
{
int n;
cin >> n;
int *abcd = new int[n];
for (int i = 0; i < n; i++)
{
int k;
cin >> k;
abcd[i] = k;
}
int ways = 0;
int median2 = n + 1;
int goal = median2 + n;
int mutableMedian2 = median2;
for (int l = -1; l < n; l++)
{
// if (debug)
// cout << "l: " << l << endl;
if (l != -1 && abcd[l] * 2 >= mutableMedian2)
{
// if (debug)
// cout << "l: abcd[" << l << "] is more than " << mutableMedian2 / 2.0 << ", breaking" << endl;
break;
}
else
{
if (l != -1)
mutableMedian2+=1;
for (int r = n; r > l + 2; r--)
{
// if (debug)
// cout << "l: " << l << ", r: " << r << endl;
if (r != n && abcd[r] * 2 >= mutableMedian2)
{
// if (debug)
// cout << "r: abcd[" << r - 1 << "] is more than " << mutableMedian2 / 2.0 << ", breaking" << endl;
mutableMedian2-=(n-r-1);
break;
}
else
{
if (r != n)
mutableMedian2+=1;
int length = r - l - 1;
// if (debug)
// cout << "[" << l << "," << r << "] length: " << length << ", mutableMedian2: " << mutableMedian2 << endl;
if (mutableMedian2 + length == goal)
{
// if (debug) printHurray(abcd, l, r);
ways++;
}
}
}
}
}
cout << goal << " " << ways + 1;
}
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 | #include <iostream> #include <vector> using namespace std; bool debug = false; void printHurray(int a[], int l, int r) { cout << "!! hurray: "; for (int i = l+1; i < r; i++) { cout << a[i] << " "; } cout << endl; } int main() { int n; cin >> n; int *abcd = new int[n]; for (int i = 0; i < n; i++) { int k; cin >> k; abcd[i] = k; } int ways = 0; int median2 = n + 1; int goal = median2 + n; int mutableMedian2 = median2; for (int l = -1; l < n; l++) { // if (debug) // cout << "l: " << l << endl; if (l != -1 && abcd[l] * 2 >= mutableMedian2) { // if (debug) // cout << "l: abcd[" << l << "] is more than " << mutableMedian2 / 2.0 << ", breaking" << endl; break; } else { if (l != -1) mutableMedian2+=1; for (int r = n; r > l + 2; r--) { // if (debug) // cout << "l: " << l << ", r: " << r << endl; if (r != n && abcd[r] * 2 >= mutableMedian2) { // if (debug) // cout << "r: abcd[" << r - 1 << "] is more than " << mutableMedian2 / 2.0 << ", breaking" << endl; mutableMedian2-=(n-r-1); break; } else { if (r != n) mutableMedian2+=1; int length = r - l - 1; // if (debug) // cout << "[" << l << "," << r << "] length: " << length << ", mutableMedian2: " << mutableMedian2 << endl; if (mutableMedian2 + length == goal) { // if (debug) printHurray(abcd, l, r); ways++; } } } } } cout << goal << " " << ways + 1; } |
English