#include #include #include #include using namespace std; int n; long long m; vector v; long long res = INT_MAX; void selectedNum(int start, int end) { while (start m) { res = min(res, v[end] - v[start]); start++; } else { end++; } } } int main(int argc, char const *argv[]) { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n >> m; long long x; for (int i = 0; i > x; v.pus..