Language: C++

// warm heart, wagging tail,and a smile just for you!
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//   ████╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬██╬╬██████╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬██████╬╬╬╬╬╬╬███████████╬╬╬╬╬╬╬╬██╬╬╬██╬╬╬██
// ███╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬██╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬██╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬████╬╬╬╬╬╬╬╬╬╬╬█╬╬╬╬╬╬╬██╬╬╬╬╬╬╬╬██
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// ██╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬██████▓▓▓▓▓▓▓╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬▓▓▓▓▓▓▓██╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬██╬╬╬╬█████
// ███╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬███╬╬╬╬╬██╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬█████╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬████████
//   ███╬╬╬╬╬╬╬╬╬╬╬╬╬█████╬╬╬╬╬╬╬╬██╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬███╬╬██╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬██
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#include "bits/stdc++.h"
using namespace std;
#define MOD 998244353
const double EPS = 1e-9;
#define INF (1LL<<60)
#define fs first
#define sc second
#define pb push_back
#define int long long
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define RFOR(i,a,b) for(int i = (b-1);i>=a;i--)
#define REP(i,n)  FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define ITR(itr,mp) for(auto itr = (mp).begin(); itr != (mp).end(); ++itr)
#define RITR(itr,mp) for(auto itr = (mp).rbegin(); itr != (mp).rend(); ++itr)
#define range(i,a,b) ((a)<=(i) && (i)<(b))
#define debug(x)  cout << #x << " = " << (x) << endl;
#define SP << " " << 
typedef pair<int,int> P;
typedef vector<vector<P> > Graph;
typedef vector<int> vec;
typedef vector<vector<int>> mat;

#include <cstdint>

template <std::uint_fast64_t Modulus> class modint {
  using u64 = std::uint_fast64_t;

  u64 a;

public:
  constexpr modint(const u64 x = 0) noexcept : a(x % Modulus) {}
  constexpr u64 value() const noexcept { return a; }
  constexpr modint operator+(const modint rhs) const noexcept {
    return modint(*this) += rhs;
  }
  constexpr modint operator-(const modint rhs) const noexcept {
    return modint(*this) -= rhs;
  }
  constexpr modint operator*(const modint rhs) const noexcept {
    return modint(*this) *= rhs;
  }
  constexpr modint operator/(const modint rhs) const noexcept {
    return modint(*this) /= rhs;
  }
  modint &operator+=(const modint rhs) noexcept {
    a += rhs.a;
    if (a >= Modulus) {
      a -= Modulus;
    }
    return *this;
  }
  modint &operator-=(const modint rhs) noexcept {
    if (a < rhs.a) {
      a += Modulus;
    }
    a -= rhs.a;
    return *this;
  }
  modint &operator*=(const modint rhs) noexcept {
    a = a * rhs.a % Modulus;
    return *this;
  }
  modint &operator/=(modint rhs) noexcept {
    u64 exp = Modulus - 2;
    while (exp) {
      if (exp % 2) {
        *this *= rhs;
      }
      rhs *= rhs;
      exp /= 2;
    }
    return *this;
  }
};
using mint = modint<MOD>;

void add(int &a, int b){
  a = ((a+b) % MOD + MOD) % MOD;
}

inline int mul(int a, int b) {
    add(a,0); add(b,0);
    #if !defined(_WIN32) || defined(_WIN64)
      return (int) ((long long) a * b % MOD);
    #endif
      unsigned long long x = (long long) a * b;
      unsigned xh = (unsigned) (x >> 32), xl = (unsigned) x, d, m;
      asm(
        "divl %4; \n\t"
        : "=a" (d), "=d" (m)
        : "d" (xh), "a" (xl), "r" (MOD)
      );
      return m;
}

inline int modpow(int a, long long b) {
  int res = 1;
  while (b > 0) {
    if (b & 1) {
      res = mul(res, a);
      }
      a = mul(a, a);
      b >>= 1;
  }
  return res;
}

inline int inv(int a) {
    a %= MOD;
    if (a < 0) a += MOD;
    int b = MOD, u = 0, v = 1;
    while (a) {
      int t = b / a;
      b -= t * a; swap(a, b);
      u -= t * v; swap(u, v);
    }
    assert(b == 1);
    if (u < 0) u += MOD;
    return u;
}

signed main(){
  ios::sync_with_stdio(false);
  cin.tie(0);

  int n;
  cin >> n;

  vec a(n);
  REP(i,n) cin >> a[i];

  int sum = accumulate(a.begin(),a.end(),0LL);

  mint dp[n+1][n+1][sum/2+2] = {};
  dp[0][0][0] = 1;
  REP(i,n){
    REP(j,n+1){
      REP(k,sum/2+2){
        if(j != n) dp[i+1][j+1][k] += dp[i][j][k];
        if(k+a[i] < sum/2+2) dp[i+1][j][k+a[i]] += dp[i][j][k];
      }
    }
  }

  mint ans = modpow(3,n);
  REP(i,n+1){
    REP(j,sum/2+2) if(sum-j >= j) ans -= mul(dp[n][i][j],(modpow(2,n-i)*3));
  }

  cout << ans.value() << endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:170:56: error: cannot convert 'mint' {aka 'modint<998244353>'} to 'long long int'
  170 |     REP(j,sum/2+2) if(sum-j >= j) ans -= mul(dp[n][i][j],(modpow(2,n-i)*3));
      |                                              ~~~~~~~~~~^
      |                                                        |
      |                                                        mint {aka modint<998244353>}
a.cc:104:20: note:   initializing argument 1 of 'long long int mul(long long int, long long int)'
  104 | inline int mul(int a, int b) {
      |                    ^