結果
問題 | No.1645 AB's abs |
ユーザー | tanimani364 |
提出日時 | 2021-08-13 21:31:19 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 68 ms / 2,000 ms |
コード長 | 3,983 bytes |
コンパイル時間 | 2,069 ms |
コンパイル使用メモリ | 212,304 KB |
実行使用メモリ | 20,864 KB |
最終ジャッジ日時 | 2024-10-03 17:21:40 |
合計ジャッジ時間 | 4,064 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 5 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 1 ms
5,248 KB |
testcase_08 | AC | 7 ms
5,248 KB |
testcase_09 | AC | 7 ms
5,248 KB |
testcase_10 | AC | 6 ms
5,248 KB |
testcase_11 | AC | 6 ms
5,248 KB |
testcase_12 | AC | 6 ms
5,248 KB |
testcase_13 | AC | 36 ms
13,952 KB |
testcase_14 | AC | 25 ms
11,008 KB |
testcase_15 | AC | 40 ms
14,208 KB |
testcase_16 | AC | 38 ms
13,696 KB |
testcase_17 | AC | 39 ms
13,824 KB |
testcase_18 | AC | 31 ms
12,416 KB |
testcase_19 | AC | 34 ms
13,568 KB |
testcase_20 | AC | 26 ms
11,264 KB |
testcase_21 | AC | 30 ms
12,416 KB |
testcase_22 | AC | 39 ms
13,568 KB |
testcase_23 | AC | 32 ms
13,184 KB |
testcase_24 | AC | 35 ms
13,824 KB |
testcase_25 | AC | 40 ms
14,336 KB |
testcase_26 | AC | 34 ms
13,568 KB |
testcase_27 | AC | 39 ms
14,080 KB |
testcase_28 | AC | 38 ms
13,696 KB |
testcase_29 | AC | 36 ms
13,952 KB |
testcase_30 | AC | 43 ms
14,848 KB |
testcase_31 | AC | 38 ms
14,592 KB |
testcase_32 | AC | 42 ms
14,848 KB |
testcase_33 | AC | 68 ms
20,608 KB |
testcase_34 | AC | 68 ms
20,608 KB |
testcase_35 | AC | 68 ms
20,864 KB |
testcase_36 | AC | 67 ms
20,736 KB |
testcase_37 | AC | 67 ms
20,736 KB |
testcase_38 | AC | 2 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> //#include<boost/multiprecision/cpp_int.hpp> //#include<boost/multiprecision/cpp_dec_float.hpp> //#include <atcoder/all> using namespace std; #define rep(i, a) for (int i = (int)0; i < (int)a; ++i) #define rrep(i, a) for (int i = (int)a; i > -1; --i) #define REP(i, a, b) for (int i = (int)a; i < (int)b; ++i) #define RREP(i, a, b) for (int i = (int)a; i > b; --i) #define repl(i, a) for (ll i = (ll)0; i < (ll)a; ++i) #define pb push_back #define eb emplace_back #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define popcount __builtin_popcount #define popcountll __builtin_popcountll #define fi first #define se second using ll = long long; constexpr ll mod = 1e9 + 7; constexpr ll mod_998244353 = 998244353; constexpr ll INF = 1LL << 60; // #pragma GCC target("avx2") // #pragma GCC optimize("O3") // #pragma GCC optimize("unroll-loops") //using lll=boost::multiprecision::cpp_int; // using Double=boost::multiprecision::number<boost::multiprecision::cpp_dec_float<128>>;//仮数部が1024桁 template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; } ll mypow(ll x, ll n, const ll &p = -1) { // x^nをmodで割った余り if (p != -1) { x = (x % p + p) % p; } ll ret = 1; while (n > 0) { if (n & 1) { if (p != -1) ret = (ret * x) % p; else ret *= x; } if (p != -1) x = (x * x) % p; else x *= x; n >>= 1; } return ret; } struct myrand{ random_device seed; mt19937 mt; myrand():mt(seed()){} int operator()(int a,int b){//[a,b) uniform_int_distribution<int>dist(a,b-1); return dist(mt); } }; //using namespace atcoder; //------------------------ //------------------------ //------------------------ //------------------------ //------------------------ template<int mod> struct Modint{ int x; Modint():x(0){} Modint(int64_t y):x((y%mod+mod)%mod){} Modint &operator+=(const Modint &p){ if((x+=p.x)>=mod) x -= mod; return *this; } Modint &operator-=(const Modint &p){ if((x+=mod-p.x)>=mod) x -= mod; return *this; } Modint &operator*=(const Modint &p){ x = (1LL * x * p.x) % mod; return *this; } Modint &operator/=(const Modint &p){ *this *= p.inverse(); return *this; } Modint operator-() const { return Modint(-x); } Modint operator+(const Modint &p) const{ return Modint(*this) += p; } Modint operator-(const Modint &p) const{ return Modint(*this) -= p; } Modint operator*(const Modint &p) const{ return Modint(*this) *= p; } Modint operator/(const Modint &p) const{ return Modint(*this) /= p; } bool operator==(const Modint &p) const { return x == p.x; } bool operator!=(const Modint &p) const{return x != p.x;} Modint inverse() const{//非再帰拡張ユークリッド int a = x, b = mod, u = 1, v = 0; while(b>0){ int t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return Modint(u); } Modint pow(int64_t n) const{//繰り返し二乗法 Modint ret(1), mul(x); while(n>0){ if(n&1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os,const Modint &p){ return os << p.x; } }; using modint = Modint<mod>; using modint2= Modint<mod_998244353>; void solve() { int n; cin>>n; vector<int>a(n); rep(i,n)cin>>a[i]; modint2 ans=0; vector<unordered_map<int,modint2>>dp(n+1); dp[0][0]=1; rep(i,n){ for(auto &j:dp[i]){ dp[i+1][j.first+a[i]]+=j.second; dp[i+1][j.first-a[i]]+=j.second; } } for(auto &x:dp[n]){ ans+=x.second*abs(x.first); } cout<<ans<<"\n"; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(15); solve(); return 0; }