oj.uz

Submission #609388

# Submission time Handle Problem Language Result Execution time Memory
609388 2022-07-27T14:46:26 Z Minindu2006 Match (CEOI16_match) C++14
37 / 100
 2000 ms 25504 KB 
#pragma GCC optimize("O3")
#pragma GCC target("sse4")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
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;
#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 trav(a, x) for (auto &a : x)
#define uid(a, b) uniform_int_distribution<int>(a, b)(rng)
#define len(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define fst first
#define nl endl
#define sec second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define ins insert
const int MOD = 1000000007;
const int MX = INT_MAX;
const int MN = INT_MIN;
void init()
{
#ifndef ONLINE_JUDGE
    freopen("input.in", "r", stdin);
    freopen("output.out", "w", stdout);
#endif
}
void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
}
string s, ans;
void findSeq(int l, int r)
{
    if (r - l <= 0)
        return;
    int i;
    char cur = s[l];
    stack<char> st;
 
    // End index
    for (i = r; i > l; i--)
    {
        if(s[i] == cur && st.empty())
            break;
        if(!st.empty() && st.top() == s[i])
            st.pop();
        else
            st.push(s[i]);
        if(s[i] == cur && st.empty())
            break;
    }
    ans[l] = '(', ans[i] = ')';
    findSeq(l + 1, i - 1);
    findSeq(i + 1, r);
}
 
void solve()
{
    cin >> s;
    int n = len(s);
 
    if (n % 2)
    {
        cout << -1;
        return;
    }
 
    // Is it possible to create a bracket sequence
    stack<char> st;
    for (int i = 0; i < n; i++)
    {
        if (!st.empty() && st.top() == s[i])
            st.pop();
        else
            st.push(s[i]);
    }
 
    if (!st.empty())
    {
        cout << -1;
        return;
    }
    ans.resize(n, 'X');
    findSeq(0, n - 1);
    cout << ans;
}
int main()
{
    int t = 1;
    // cin >> t;
    while (t--)
        solve();
    return 0;
}

Compilation message

match.cpp: In function 'void init()':
match.cpp:38:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     freopen("input.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
match.cpp:39:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     freopen("output.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 812 KB Output is correct
7 Correct 1 ms 556 KB Output is correct

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 812 KB Output is correct
7 Correct 1 ms 556 KB Output is correct
8 Correct 3 ms 428 KB Output is correct
9 Correct 13 ms 1836 KB Output is correct
10 Correct 6 ms 1492 KB Output is correct
11 Correct 4 ms 2600 KB Output is correct
12 Correct 137 ms 12952 KB Output is correct
13 Correct 69 ms 14328 KB Output is correct
14 Correct 707 ms 21636 KB Output is correct
15 Correct 23 ms 24928 KB Output is correct
16 Correct 20 ms 25012 KB Output is correct
17 Correct 98 ms 25504 KB Output is correct
18 Correct 16 ms 10360 KB Output is correct
19 Correct 1137 ms 19956 KB Output is correct
20 Correct 481 ms 18636 KB Output is correct
21 Execution timed out 2078 ms 19372 KB Time limit exceeded
22 Halted 0 ms 0 KB -