Submission #1118243

#	Time	Username	Problem	Language	Result	Execution time	Memory
1118243		vjudge1	Skyscraper (JOI16_skyscraper)	C++17	Compilation error	0 ms	0 KiB

skyscraper

#include <bits/stdc++.h>
using namespace std;

template <typename T> istream &operator>>(istream &in, vector<T> &arr) {
  for (T &el : arr) {
    in >> el;
  }
  return in;
}

int main() {

  constexpr int MOD = 1'000'000'007;

  int n, l, s, ans = 0;
  cin >> n >> l;
  vector<int> a(n);
  cin >> a;

  ranges::sort(a);

  do {
    s = 0;
    for (int i = 0; i < n - 1; i++) {
      s += abs(a[i] - a[i + 1]);
    }
    if (s <= l) {
      ans++;

      if (ans == MOD) {
        ans = 0;
      }
    }
  } while (ranges::next_permutation(a).found);

  cout << ans << '\n';
  return 0;
}

Compilation message (stderr)

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:20:3: error: 'ranges' has not been declared
   20 |   ranges::sort(a);
      |   ^~~~~~
skyscraper.cpp:34:12: error: 'ranges' has not been declared
   34 |   } while (ranges::next_permutation(a).found);
      |            ^~~~~~