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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.    int n;
  6.    cin >> n;
  7.    long long arr[61];
  8.    arr[0] = 1;
  9.    arr[1] = 1;
  10.    arr[2] = 2;
  11.    for(int i = 3; i <= n; i++){
  12.       arr[i] = arr[i-1] + arr[i-2] + arr[i-3];
  13.    }
  14.    cout << arr[n];
  15.    return 0;
  16. }
  17.  
Success #stdin #stdout 0s 4416KB
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4680045560037375
https://ideone.com/LF1rGi
срр мазурок массивы лесенка
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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