結果
問題 | No.1007 コイン集め |
ユーザー | kyon2326 |
提出日時 | 2020-03-13 20:28:18 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 45 ms / 1,500 ms |
コード長 | 6,532 bytes |
コンパイル時間 | 1,473 ms |
コンパイル使用メモリ | 169,480 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-22 17:18:55 |
合計ジャッジ時間 | 2,819 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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
6,816 KB |
testcase_01 | AC | 1 ms
6,820 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 2 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,820 KB |
testcase_06 | AC | 2 ms
6,820 KB |
testcase_07 | AC | 1 ms
6,816 KB |
testcase_08 | AC | 2 ms
6,816 KB |
testcase_09 | AC | 1 ms
6,816 KB |
testcase_10 | AC | 1 ms
6,816 KB |
testcase_11 | AC | 2 ms
6,816 KB |
testcase_12 | AC | 40 ms
6,820 KB |
testcase_13 | AC | 40 ms
6,820 KB |
testcase_14 | AC | 39 ms
6,820 KB |
testcase_15 | AC | 16 ms
6,816 KB |
testcase_16 | AC | 17 ms
6,816 KB |
testcase_17 | AC | 17 ms
6,816 KB |
testcase_18 | AC | 45 ms
6,816 KB |
testcase_19 | AC | 40 ms
6,820 KB |
testcase_20 | AC | 42 ms
6,816 KB |
testcase_21 | AC | 41 ms
6,816 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; /* #ifndef ONLINE_JUDGE #include <boost/multiprecision/cpp_int.hpp> #include <boost/multiprecision/cpp_dec_float.hpp> using bll = boost::multiprecision::cpp_int; using bdouble = boost::multiprecision::cpp_dec_float_100; #endif */ #ifdef LOCAL_DEV void debug_impl() { std::cerr << '\n'; } template<typename Head, typename... Tail> void debug_impl(Head head, Tail... tail) { std::cerr << " " << head << (sizeof...(tail) ? "," : ""); debug_impl(tail...); } #define debug(...) do { std::cerr << "(" << #__VA_ARGS__ << ") ="; debug_impl(__VA_ARGS__); } while (false) #else #define debug(...) do {} while (false) #endif #ifdef LOCAL_TEST #define BOOST_STACKTRACE_USE_ADDR2LINE #define BOOST_STACKTRACE_ADDR2LINE_LOCATION /usr/local/opt/binutils/bin/addr2line #define _GNU_SOURCE #include <boost/stacktrace.hpp> namespace std { template<typename T> class dvector : public std::vector<T> { public: dvector() : std::vector<T>() {} explicit dvector(size_t n, const T& value = T()) : std::vector<T>(n, value) {} dvector(const std::vector<T>& v) : std::vector<T>(v) {} dvector(const std::initializer_list<T> il) : std::vector<T>(il) {} dvector(const std::string::iterator first, const std::string::iterator last) : std::vector<T>(first, last) {} dvector(const typename std::vector<T>::iterator first, const typename std::vector<T>::iterator last) : std::vector<T>(first, last) {} dvector(const typename std::vector<T>::reverse_iterator first, const typename std::vector<T>::reverse_iterator last) : std::vector<T>(first, last) {} dvector(const typename std::vector<T>::const_iterator first, const typename std::vector<T>::const_iterator last) : std::vector<T>(first, last) {} dvector(const typename std::vector<T>::const_reverse_iterator first, const typename std::vector<T>::const_reverse_iterator last) : std::vector<T>(first, last) {} T& operator[](size_t n) { try { return this->at(n); } catch (const std::exception& e) { std::cerr << boost::stacktrace::stacktrace() << '\n'; return this->at(n); } } const T& operator[](size_t n) const { try { return this->at(n); } catch (const std::exception& e) { std::cerr << boost::stacktrace::stacktrace() << '\n'; return this->at(n); } } }; } class dbool { private: bool boolvalue; public: dbool() : boolvalue(false) {} dbool(bool b) : boolvalue(b) {} dbool(const dbool& b) : boolvalue(b.boolvalue) {} operator bool&() { return boolvalue; } operator const bool&() const { return boolvalue; } }; template<typename T> std::ostream& operator<<(std::ostream& s, const std::dvector<T>& v) { for (size_t i = 0; i < v.size(); ++i){ s << v[i]; if (i < v.size() - 1) s << "\t"; } return s; } template<typename T> std::ostream& operator<<(std::ostream& s, const std::dvector<std::dvector<T>>& vv) { s << "\\\n"; for (size_t i = 0; i < vv.size(); ++i){ s << vv[i] << "\n"; } return s; } template<typename T> std::ostream& operator<<(std::ostream& s, const std::set<T>& se) { s << "{ "; for (auto itr = se.begin(); itr != se.end(); ++itr){ s << (*itr) << "\t"; } s << "}"; return s; } template<typename T> std::ostream& operator<<(std::ostream& s, const std::multiset<T>& se) { s << "{ "; for (auto itr = se.begin(); itr != se.end(); ++itr){ s << (*itr) << "\t"; } s << "}"; return s; } template <typename T, size_t N> std::ostream& operator<<(std::ostream& s, const std::array<T, N>& a) { s << "{ "; for (size_t i = 0; i < N; ++i){ s << a[i] << "\t"; } s << "}"; return s; } template<typename T1, typename T2> std::ostream& operator<<(std::ostream& s, const std::map<T1, T2>& m) { s << "{\n"; for (auto itr = m.begin(); itr != m.end(); ++itr){ s << "\t" << (*itr).first << " : " << (*itr).second << "\n"; } s << "}"; return s; } template<typename T1, typename T2> std::ostream& operator<<(std::ostream& s, const std::pair<T1, T2>& p) { return s << "(" << p.first << ", " << p.second << ")"; } #define vector dvector #define bool dbool class SIGFPE_exception : std::exception {}; class SIGSEGV_exception : std::exception {}; void catch_SIGFPE(int e) { std::cerr << boost::stacktrace::stacktrace() << '\n'; throw SIGFPE_exception(); } void catch_SIGSEGV(int e) { std::cerr << boost::stacktrace::stacktrace() << '\n'; throw SIGSEGV_exception(); } signed convertedmain(); signed main() { signal(SIGFPE, catch_SIGFPE); signal(SIGSEGV, catch_SIGSEGV); return convertedmain(); } #define main() convertedmain() #endif //#define int long long using ll = long long; //constexpr int INF = 1e9;//INT_MAX=(1<<31)-1=2147483647 constexpr ll INF = (ll)1e18;//(1LL<<63)-1=9223372036854775807 constexpr ll MOD = (ll)1e9 + 7; constexpr double EPS = 1e-9; constexpr ll dx[4] = {1LL, 0LL, -1LL, 0LL}; constexpr ll dy[4] = {0LL, 1LL, 0LL, -1LL}; constexpr ll dx8[8] = {1LL, 0LL, -1LL, 0LL, 1LL, 1LL, -1LL, -1LL}; constexpr ll dy8[8] = {0LL, 1LL, 0LL, -1LL, 1LL, -1LL, 1LL, -1LL}; #define rep(i, n) for(ll i=0, i##_length=(n); i< i##_length; ++i) #define repeq(i, n) for(ll i=1, i##_length=(n); i<=i##_length; ++i) #define rrep(i, n) for(ll i=(n)-1; i>=0; --i) #define rrepeq(i, n) for(ll i=(n) ; i>=1; --i) #define all(v) (v).begin(), (v).end() #define rall(v) (v).rbegin(), (v).rend() void p() { std::cout << '\n'; } template<typename Head, typename... Tail> void p(Head head, Tail... tail) { std::cout << head << (sizeof...(tail) ? " " : ""); p(tail...); } template<typename T> inline void pv(std::vector<T>& v) { for(ll i=0, N=v.size(); i<N; i++) std::cout << v[i] << " \n"[i==N-1]; } template<typename T> inline T gcd(T a, T b) { return b ? gcd(b,a%b) : a; } template<typename T> inline T lcm(T a, T b) { return a / gcd(a, b) * b; } template<typename T> inline bool chmax(T& a, T b) { return a < b && (a = b, true); } template<typename T> inline bool chmin(T& a, T b) { return a > b && (a = b, true); } template<typename T> inline void uniq(std::vector<T>& v) { v.erase(std::unique(v.begin(), v.end()), v.end()); } /*-----8<-----template-----8<-----*/ /*-----8<-----library-----8<-----*/ void solve() { ll N,K; cin>>N>>K; K--; vector<ll> a(N); rep(i,N)cin>>a[i]; if(a[K]==0){ p(0);return; } ll x=max(0LL,K-1); while(x>0){ if(a[x]<=1)break; x--; } ll y=min(K+1,N-1); while(y<N-1){ if(a[y]<=1)break; y++; } ll ans1=0; for(ll i=x;i<K;i++){ ans1+=a[i]; } ll ans2=0; for(ll i=y;K<i;i--){ ans2+=a[i]; } if(a[K]==1){ p(max(ans1,ans2)+1);return; } p(ans1+ans2+a[K]); } signed main() { solve(); return 0; }