結果

問題 No.22 括弧の対応
ユーザー tu-satu-sa
提出日時 2018-06-19 03:46:45
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 5,178 bytes
コンパイル時間 1,058 ms
コンパイル使用メモリ 122,348 KB
最終ジャッジ日時 2024-11-14 20:28:22
合計ジャッジ時間 1,476 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge5
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コンパイルメッセージ
main.cpp: In function 'std::ostream& operator<<(std::ostream&, const iter_pair_t<T>&)':
main.cpp:77:33: error: 'ostream_iterator' was not declared in this scope
   77 |         std::copy(v.beg, v.end, ostream_iterator<typename decltype(v.beg)::reference>(out, " "));
      |                                 ^~~~~~~~~~~~~~~~
main.cpp:27:1: note: 'std::ostream_iterator' is defined in header '<iterator>'; did you forget to '#include <iterator>'?
   26 | #include <mutex>
  +++ |+#include <iterator>
   27 | using namespace std;
main.cpp:77:85: error: expected '(' before '>' token
   77 |         std::copy(v.beg, v.end, ostream_iterator<typename decltype(v.beg)::reference>(out, " "));
      |                                                                                     ^
      |                                                                                     (
main.cpp: At global scope:
main.cpp:100:75: warning: overflow in conversion from 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} to 'int' changes value from '18446744073709551615' to '-1' [-Woverflow]
  100 | map<int,int> findBraces(const string &str, int s = 0, int e = string::npos)
      |                                                                           ^
main.cpp: In function 'void solve()':
main.cpp:134:25: warning: overflow in conversion from 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} to 'int' changes value from '18446744073709551615' to '-1' [-Woverflow]
  134 |         WRITE(findBraces(S)[K - 1] + 1);
      |               ~~~~~~~~~~^~~
main.cpp:87:37: note: in definition of macro 'WRITE'
   87 | #define WRITE(...) (_Writer{cout}), __VA_ARGS__; cout << endl
      |                                     ^~~~~~~~~~~

ソースコード

diff # 

////////////////////////////////////////
///  tu3 pro-con template            ///
////////////////////////////////////////
#include <cassert>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <iostream>
#include <sstream>
#include <algorithm>
#include <numeric>
#include <functional>
#include <vector>
#include <queue>
#include <string>
#include <complex>
#include <stack>
#include <set>
#include <map>
#include <list>
#include <unordered_map>
#include <unordered_set>
#include <bitset>
#include <regex>
#include <type_traits>
#include <mutex>
using namespace std;

//// MACRO ////
#define countof(a) (sizeof(a)/sizeof(a[0]))

#define REP(i,n) for (int i = 0; i < (n); i++)
#define RREP(i,n) for (int i = (n)-1; i >= 0; i--)
#define FOR(i,s,n) for (int i = (s); i < (n); i++)
#define RFOR(i,s,n) for (int i = (n)-1; i >= (s); i--)
#define pos(c,i) c.being() + (i)
#define allof(c) c.begin(), c.end()
#define aallof(a) a, countof(a)
#define partof(c,i,n) c.begin() + (i), c.begin() + (i) + (n)
#define apartof(a,i,n) a + (i), a + (i) + (n)
#define long long long

#define EPS 1e-9
#define INF (1L << 28)
#define LINF (1LL << 60)

#define PREDICATE(t,a,exp) [&](const t & a) -> bool { return exp; }
#define COMPARISON_T(t) bool(*)(const t &, const t &)
#define COMPARISON(t,a,b,exp) [&](const t & a, const t & b) -> bool { return exp; }
#define CONVERTER(TSrc,t,TDest,exp) [&](const TSrc &t)->TDest { return exp; }

inline int sign_of(double x) { return (abs(x) < EPS ? 0 : x > 0 ? 1 : -1); }
inline bool inRange(int val, int min, int max) { return val >= min && val < max; }
inline bool inRange(double val, double min, double max) { return val - min > -EPS && val - max < EPS; }
inline bool inRange(int x, int y, int W, int H) { return x >= 0 && x < W && y >= 0 && y < H; } // W,H含まない

template <class T> struct vevector : public vector<vector<T>> { vevector(int n = 0, int m = 0, const T &initial = T()) : vector<vector<T>>(n, vector<T>(m, initial)) { } };
template <class T> struct vevevector : public vector<vevector<T>> { vevevector(int n = 0, int m = 0, int l = 0, const T &initial = T()) : vector<vevector<T>>(n, vevector<T>(m, l, initial)) { } };
template <class T> struct vevevevector : public vector<vevevector<T>> { vevevevector(int n = 0, int m = 0, int l = 0, int k = 0, const T &initial = T()) : vector<vevevector<T>>(n, vevevector<T>(m, l, k, initial)) { } };

//// i/o helper ////

namespace std {
template <class T1, class T2> inline istream & operator >> (istream & in, pair<T1, T2> &p) { in >> p.first >> p.second; return in; }
template <class T1, class T2> inline ostream & operator << (ostream &out, const pair<T1, T2> &p) { out << p.first << " " << p.second; return out; }
}
template <class T> T read() { T t; cin >> t; return t; }
template <class T> vector<T> read(int n) { vector<T> v; REP(i, n) { v.push_back(read<T>()); } return v; }
template <class T> vevector<T> read(int n, int m) { vevector<T> v; REP(i, n) v.push_back(read<T>(m)); return v; }
template <class T> vector<T> readjag() { return read<T>(read<int>()); }
template <class T> vevector<T> readjag(int n) { vevector<T> v; REP(i, n) v.push_back(readjag<T>()); return v; }

template <class T> struct iter_pair_t { T beg, end; };
template <class T> iter_pair_t<T> iter_pair(T beg, T end) { return iter_pair_t<T>{beg, end}; }
template <class T> ostream & operator << (ostream &out, const iter_pair_t<T> &v)
{
	std::copy(v.beg, v.end, ostream_iterator<typename decltype(v.beg)::reference>(out, " "));
	return out;
}
template <class T1> ostream & operator << (ostream &out, const vector<T1> &v) { return out << iter_pair(begin(v), end(v)); }
template <class T1> ostream & operator << (ostream &out, const set<T1> &v) { return out << iter_pair(begin(v), end(v)); }
template <class T1, class T2> ostream & operator << (ostream &out, const map<T1,T2> &v) { return out << iter_pair(begin(v), end(v)); }

struct _Reader { istream &cin;template <class T> _Reader operator ,(T &rhs) { cin >> rhs; return *this; } };
struct _Writer { ostream &cout; bool f{false}; template <class T> _Writer operator ,(const T &rhs) { cout << (f ? " " : "") << rhs; f = true; return *this; } };
#define READ(t,...) t __VA_ARGS__; (_Reader{cin}), __VA_ARGS__
#define WRITE(...) (_Writer{cout}), __VA_ARGS__; cout << endl
#define DEBUG(...) (_Writer{cerr}), __VA_ARGS__; cerr << endl

void solve();
int main()
{
	cin.tie(0);
	ios_base::sync_with_stdio(false);
	solve();
	return 0;
}

// 対応する括弧のインデクス
map<int,int> findBraces(const string &str, int s = 0, int e = string::npos)
{
	e = e != string::npos ? e : str.size();
	
	map<int, int> r;
	stack<pair<char, int>> stack;
	FOR(i, s, e)
	{
		switch (str[i])
		{
#define CASE(x,y) \
	case x: stack.emplace(str[i], i); break; \
	case y: if (!stack.empty() && stack.top().first == x) { r[i] = stack.top().second; r[stack.top().second] = i; stack.pop(); } break
		CASE('(', ')');
		CASE('[', ']');
		CASE('<', '>');
		CASE('{', '}');
		default: break;
#undef  CASE
		}
	}

	return r;
}


////////////////////
/// template end ///
////////////////////

void solve()
{
	READ(int, N,K);
	READ(string, S);
	WRITE(findBraces(S)[K - 1] + 1);
}
0