結果
問題 | No.1046 Fruits Rush |
ユーザー | Imperi_Night |
提出日時 | 2020-05-08 21:27:35 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 3,667 bytes |
コンパイル時間 | 1,713 ms |
コンパイル使用メモリ | 135,644 KB |
最終ジャッジ日時 | 2025-01-10 08:03:42 |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 14 |
ソースコード
#include <algorithm> #include <array> #include <bitset> #include <cassert> #include <cctype> #include <cstdint> #include <cstdlib> #include <cmath> #include <complex> #include <chrono> #include <deque> #include <functional> #include <iomanip> #include <iostream> #include <map> #include <memory> #include <numeric> #include <queue> #include <set> #include <stack> #include <string> #include <unordered_map> #include <vector> #include <random> #include <utility> #include <limits> #include <list> /* template start */ #define rep(i, a, b) for (long long i = (a); (i) < (b); (i)++) #define all(i) i.begin(), i.end() #ifdef LOCAL #define debug(...) std::cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) #else #define debug(...) #endif void debug_out(){std::cerr<<std::endl;} template<typename Head,typename... Tail> void debug_out(Head h,Tail... t){ std::cerr<<" "<<h; if(sizeof...(t)>0)std::cout<<" :"; debug_out(t...); } template <typename T1, typename T2> std::ostream& operator<<(std::ostream& os, std::pair<T1, T2> pa) { return os << pa.first << " " << pa.second; } template <typename T> std::ostream& operator<<(std::ostream& os, std::vector<T> vec) { for (std::size_t i = 0; i < vec.size(); i++)os << vec[i] << (i + 1 == vec.size() ? "" : " "); return os; } template<typename T1,typename T2> inline bool chmax(T1& a,T2 b){return a<b && (a=b,true);} template<typename T1,typename T2> inline bool chmin(T1& a,T2 b){return a>b && (a=b,true);} long long pow_mod(long long a, long long b, long long mod=-1) { if(b==0)return 1; if ((a == 0)||(mod!=-1&&(a+mod)%mod==0))return 0; long long x = 1; while (b > 0) { if (b & 1)x = (mod!=-1)?(x * a) % mod:x*a; a = (mod!=-1)?(a * a) % mod:a*a; b >>= 1; } return x; } template <std::uint_fast64_t Modulus> class modint { using u64 = std::uint_fast64_t; public: u64 a; constexpr modint(const u64 x = 0) noexcept : a(x % Modulus) {} constexpr u64 &value() noexcept { return a; } constexpr const 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; } constexpr modint &operator+=(const modint rhs) noexcept { a += rhs.a; if (a >= Modulus) { a -= Modulus; } return *this; } constexpr modint &operator-=(const modint rhs) noexcept { if (a < rhs.a) { a += Modulus; } a -= rhs.a; return *this; } constexpr modint &operator*=(const modint rhs) noexcept { a = a * rhs.a % Modulus; return *this; } constexpr modint &operator/=(modint rhs) noexcept { u64 exp = Modulus - 2; while (exp) { if (exp % 2) { *this *= rhs; } rhs *= rhs; exp /= 2; } return *this; } }; /* template end */ using ll = long long; using P=std::pair<long long,long long>; int main() { std::cin.tie(nullptr); std::ios::sync_with_stdio(false); ll n,k; std::cin>>n>>k; std::vector<ll> plus,minus; rep(i,0,n){ ll a; std::cin>>a; if(a>0)plus.emplace_back(a); else minus.emplace_back(a); } std::sort(all(plus),std::greater<ll>()); std::sort(all(minus),std::greater<ll>()); if(!plus.empty()){ ll ans=0; rep(i,0,std::min(k,(ll)plus.size()))ans+=plus[i]; std::cout<<ans<<"\n"; }else{ std::cout<<minus[0]<<"\n"; } return 0; }