// code of JUYU ^ ^ never doubt youself ! #include typedef long long ll; #define int ll #define For(i,a,b) for (int i = a; i <= b; i ++) #define Dow(i,a,b) for (int i = b; i >= a; -- i) #define ms(a,b) memset(a, b, sizeof (a)) #define fir first #define sec second #define mk make_pair #define pb push_back #define eb emplace_back using namespace std; typedef pair PII; const int mod = 998244353; const int MOD = 1000000007; const int maxn = 3005; inline ll read() { ll t = 0, dp = 1; char c = getchar(); while(!isdigit(c)) {if (c == '-') dp = -1; c = getchar();} while(isdigit(c)) t = t * 10 + c - 48, c = getchar(); return t * dp; } inline void write(ll x){if (x < 0){putchar('-'); x = -x;} if(x >= 10) write(x / 10); putchar(x % 10 + 48);} inline void writeln(ll x){write(x); puts("");} inline void write_p(ll x){write(x); putchar(' ');} inline void write_b(ll x){putchar(' '); write(x);} inline int qpow(int x, int y, int z){int ret = 1; for (; y; y /= 2, x = x * x % z) if (y & 1) ret = ret * x % z; return ret;} inline int PrimeInv(int x, int y, int z){return qpow(x, y - 2, z);} int H[maxn], N, A, B, X, Y; inline bool check(int x) { int ret = 0; For(i,1,N) { int t = max(0LL, (H[i] - x) / X); if (H[i] - t * X > x) t ++; ret += t; } return ret <= A; } signed main() { N = read(), A = read(), B = read(), X = read(), Y = read(); For(i,1,N) H[i] = read(); int l = -1, r = 1e9 + 1, x = -1; while (l + 1 != r) { int mid = (l + r) / 2; if (check(mid)) x = r = mid; else l = mid; } For(i,1,N) { if (H[i] > x) { int t = max(0LL, (H[i] - x) / X); if (H[i] - t * X > x) t ++; if (A >= t) { H[i] -= t * X; A -= t; } } H[i] = max(0LL, H[i]); } int sum = 0; For(i,1,N) sum += H[i]; puts((sum + Y - 1) / Y <= B ? "Yes" : "No"); return 0; } /* stuff you should look for * int overflow, array bounds * special cases (n=1?) * do smth instead of nothing and stay organized * WRITE STUFF DOWN * DON'T GET STUCK ON ONE APPROACH -- Benq */