oj.uz

답안 #74062

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
74062 2018-08-29T18:29:53 Z aredt 괄호 문자열 (CEOI16_match) C++14
100 / 100
 62 ms 18208 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
 
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
 
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
 
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
 
#define FOR(i, a, b) for (int i=a; i<(b); i++)
#define F0R(i, a) for (int i=0; i<(a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
 
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
 
const int MOD = 1000000007;
const ll INF = 1e18;
const int MX = 100001;
 
string x;
int st[MX][17], pre[MX][26];
 
bool ok(int l, int r) {
    r ++;
    F0Rd(i,17) if (st[r][i] >= l) r = st[r][i];
    return l == r;
}
 
vi v;
 
bool bad(int ind) {
  	if(v.size()&&ind==v.back()) return 1;
  	else return 0;
}
 
void ad(char c) {
    v.pb(pre[sz(v) ? v.back() : sz(x)][c-'a']);
}
 
void rem() {
    v.pop_back();
}
 
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> x;
    F0R(i,sz(x)+1) {
        if (i) st[i][0] = pre[i-1][x[i-1]-'a'];
        else st[i][0] = -1;
        
        // if (i) cout << i << " " << st[i][0] << " " << x[i-1] << "\n";
        F0R(j,26) pre[i][j] = (st[i][0] == -1 ? -1 : pre[st[i][0]][j]);
        if (i) {
            pre[i][x[i-1]-'a'] = i-1;
            // cout << "AH " << i << " " << x[i-1] << "\n";
        }
    }
    FOR(j,1,17) F0R(i,sz(x)+1) {
        if (st[i][j-1] == -1) st[i][j] = -1;
        else st[i][j] = st[st[i][j-1]][j-1];
    }
    if (!ok(0,sz(x)-1)) {
        cout << -1;
        exit(0);
    }
    // cout << pre[6][0]; exit(0);
    string ans;
    F0R(i,sz(x)) {
        //ad(x[i]);
        //cout << v.back() << " " << bad(i) << "\n";
        //exit(0);
        if (bad(i)) {
            rem();
            ans += ')';
        } else {
          	ad(x[i]);
            ans += '(';
        }
    }
    cout << ans;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 4 ms 488 KB Output is correct
3 Correct 3 ms 488 KB Output is correct

Subtask #2
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 4 ms 488 KB Output is correct
3 Correct 3 ms 488 KB Output is correct
4 Correct 3 ms 748 KB Output is correct
5 Correct 5 ms 816 KB Output is correct
6 Correct 4 ms 816 KB Output is correct
7 Correct 4 ms 832 KB Output is correct

Subtask #3
63.0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 376 KB Output is correct
2 Correct 4 ms 488 KB Output is correct
3 Correct 3 ms 488 KB Output is correct
4 Correct 3 ms 748 KB Output is correct
5 Correct 5 ms 816 KB Output is correct
6 Correct 4 ms 816 KB Output is correct
7 Correct 4 ms 832 KB Output is correct
8 Correct 5 ms 1728 KB Output is correct
9 Correct 7 ms 1736 KB Output is correct
10 Correct 6 ms 1888 KB Output is correct
11 Correct 6 ms 1888 KB Output is correct
12 Correct 30 ms 11196 KB Output is correct
13 Correct 28 ms 12320 KB Output is correct
14 Correct 31 ms 13124 KB Output is correct
15 Correct 36 ms 14880 KB Output is correct
16 Correct 26 ms 14880 KB Output is correct
17 Correct 31 ms 15648 KB Output is correct
18 Correct 39 ms 16416 KB Output is correct
19 Correct 36 ms 17312 KB Output is correct
20 Correct 24 ms 17312 KB Output is correct
21 Correct 62 ms 18208 KB Output is correct