#include #include #include using namespace std; // #include // using namespace atcoder; // using mint = modint998244353; using ll = long long; #define fix(x) fixed << setprecision(x) #define rep(i, n) for(int i = 0; i < n; ++i) #define all(x) (x).begin(),(x).end() templatebool chmin(T&a, const T&b){if(a>b){a=b;return 1;}return 0;} templatebool chmax(T&a, const T&b){if(a> n >> t >> x >> y; vector d(n); rep(i,n) cin >> d[i]; sort(all(d)); vector z; int cnt = 1; rep(i,n-1){ if(d[i]+t