제출 #77850

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
77850		duality	괄호 문자열 (CEOI16_match)	C++11	100 / 100	37 ms	21512 KiB

match

#define DEBUG 0

#include <bits/stdc++.h>
using namespace std;

#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}

// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
    public:
        template<typename T>
        _Debug& operator,(T val) {
            cout << val << endl;
            return *this;
        }
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif

// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back

// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;

// ---------- END OF TEMPLATE ----------

string s;
vector<char> S;
int trie[100001][26],parent[100001],num = 0;
int pos[100000][26],best[100000][26];
int findAns(int l,int r) {
    if (l > r) return 0;
    int p = best[r][s[l]-'a'];
    s[l] = '(',s[p] = ')';
    findAns(l+1,p-1),findAns(p+1,r);
    return 0;
}
int main() {
    cin >> s;

    int i,j,c = 0;
    for (i = 0; i < s.size(); i++) {
        if (!S.empty() && (S.back() == s[i])) c = parent[c],S.pop_back();
        else {
            if (trie[c][s[i]-'a'] == 0) trie[c][s[i]-'a'] = ++num,parent[num] = c;
            c = trie[c][s[i]-'a'],S.pb(s[i]);
        }
        pos[c][s[i]-'a'] = i;
        for (j = 0; j < 26; j++) best[i][j] = pos[c][j];
    }
    if (!S.empty()) {
        cout << -1 << endl;
        return 0;
    }
    findAns(0,s.size()-1);
    cout << s << endl;

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

match.cpp: In function 'int main()':
match.cpp:73:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < s.size(); i++) {
                 ~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 27 / 27
• Subtask 3: 63 / 63