94 lines
1.7 KiB
C++
94 lines
1.7 KiB
C++
#include <bits/stdc++.h> // {{{
|
|
|
|
// https://codeforces.com/blog/entry/96344
|
|
|
|
#pragma GCC optimize("O2,unroll-loops")
|
|
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
|
|
|
|
using namespace std;
|
|
|
|
using i32 = int32_t;
|
|
using u32 = uint32_t;
|
|
using i64 = int64_t;
|
|
using u64 = uint64_t;
|
|
using d64 = double;
|
|
using d128 = long double;
|
|
template <typename T>
|
|
using vec = std::vector<T>;
|
|
template <typename T, size_t N>
|
|
using arr = std::array<T, N>;
|
|
template <typename T1, typename T2>
|
|
using pai = std::pair<T1, T2>;
|
|
|
|
template <typename T>
|
|
constexpr T MIN = std::numeric_limits<T>::min();
|
|
|
|
template <typename T>
|
|
constexpr T MAX = std::numeric_limits<T>::max();
|
|
|
|
template <typename T>
|
|
[[nodiscard]] static T sc(auto&& x) {
|
|
return static_cast<T>(x);
|
|
}
|
|
|
|
template <typename T>
|
|
[[nodiscard]] static T sz(auto&& x) {
|
|
return static_cast<T>(x.size());
|
|
}
|
|
|
|
static void NO() {
|
|
std::cout << "NO\n";
|
|
}
|
|
|
|
static void YES() {
|
|
std::cout << "YES\n";
|
|
}
|
|
|
|
#define all(x) (x).begin(), (x).end()
|
|
#define rall(x) (x).rbegin(), (x).rend()
|
|
|
|
#ifdef LOCAL
|
|
#define db(...) std::print(__VA_ARGS__)
|
|
#define dbln(...) std::println(__VA_ARGS__)
|
|
#else
|
|
#define db(...)
|
|
#define dbln(...)
|
|
#endif
|
|
// }}}
|
|
|
|
static constexpr u64 MOD = 1e9 + 7;
|
|
|
|
void solve() {
|
|
u64 n, x;
|
|
cin >> n >> x;
|
|
vec<u64> c(n);
|
|
for (auto& e : c) {
|
|
cin >> e;
|
|
}
|
|
sort(all(c));
|
|
|
|
vec<u64> ways(x + 1, 0);
|
|
ways[0] = 1;
|
|
for (u32 i = 0; i < n; ++i) {
|
|
for (u64 j = c[i]; j <= x; ++j) {
|
|
ways[j] = (ways[j] + ways[j - c[i]]) % MOD;
|
|
}
|
|
}
|
|
|
|
cout << ways[x] << '\n';
|
|
}
|
|
|
|
int main() { // {{{
|
|
cin.tie(nullptr)->sync_with_stdio(false);
|
|
cin.exceptions(cin.failbit);
|
|
|
|
int tc = 1;
|
|
// cin >> tc;
|
|
|
|
for (int t = 0; t < tc; ++t) {
|
|
solve();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
// }}}
|