Alitaulukot

input/code.cpp:5:6: error: 'vector' in namespace 'std' does not name a template type
 std::vector<int> nums;
      ^~~~~~
input/code.cpp: In function 'void step(int, int, int, int)':
input/code.cpp:10:16: error: 'nums' was not declared in this scope
     int next = nums[num + c - 1];
                ^~~~
input/code.cpp:10:16: note: suggested alternative: 'num'
     int next = nums[num + c - 1];
                ^~~~
                num
input/code.cpp: In function 'int main()':
input/code.cpp:39:5: error: 'nums' was not declared in this scope
     nums = new int[n];
     ^~~~
input/code.cpp:39:5: note: suggested alternative: 'puts'
     nums = new int[n];
     ^~~~
     puts
input/code.cpp:49:31: error: 'min' cannot be used as a function
         min = min(min, nums[i])
                               ^
input/code.cpp:48:31: warning: unused variable 'max' [-Wunused-variable]
         int min = 1000000000, max = 1;
                               ^~~

#include <iostream>
 
using namespace std;
 
std::vector<int> nums;
int n, k, res = 0;
 
void step(int c, int num, int min, int max) {
 
    int next = nums[num + c - 1];
 
    if (next > 0) {
        /*for (int i = num; i < num + c - 1; i++)
        {
            cout << nums[i];
        }
        cout << next;
        cout << endl;*/
        if (next < min)
            min = next;
        if (next > max)
            max = next; 
        //cout << min << " - " << max << endl;
        //cout << c << ":" << num << ":" << min << ":" << max << ":" << next << endl;
 
        if (max - min <= k) {
            res++;
            step(c + 1, num, min, max);
        }
    }
}
 
 
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> k;
    nums = new int[n];
    for (int i = 0; i < n; i++)
        cin >> nums[i];
 
    res+=n;
 
    for (int i = 0; i < n; i++)
    {
 
        int min = 1000000000, max = 1;
        min = min(min, nums[i])
        max = max(max, nums[i])
 
        if (max - min <= k) {
            step(2, i, min, max);
        }
    }
 
    //step(1);
    
    cout << res;
}