oj.uz

답안 #1032718

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1032718 2024-07-24T06:47:09 Z 김은성(#10965) 괄호 문자열 (CEOI16_match) C++17
37 / 100
 2000 ms 852 KB 
#include <bits/stdc++.h>
using namespace std;
char s[100009], t[100009];
int n;
bool possible(int idx, vector<char> st){
    int i;
    for(i=idx; i<n; i++){
        if(!st.empty() && st.back() == s[i])
            st.pop_back();
        else
            st.push_back(s[i]);
    }
    return st.empty();
}
bool inverse(int idx, vector<char> vec){
    int i, j = 0;
    vector<char> st;
    for(i=n-1; i>=idx; i--){
        if(j < vec.size() && st.empty() && vec[j] == s[i])
            j++;
        else{
            if(!st.empty() && st.back() == s[i])
                st.pop_back();
            else
                st.push_back(s[i]);
        }
        if(j==vec.size())
            return 1;
    }
    return 0;
}
int main(){
    int i;
    scanf(" %s", s);
    n = strlen(s);
    vector<char> st;
    if(!possible(0, st)){
        printf("-1\n");
        return 0;
    }
    for(i=0; i<n; i++){
        st.push_back(s[i]);
        t[i] = '(';
        if(st.size()>1 && st[st.size()-2] == s[i]){
            if(!inverse(i+1, st)){
                t[i] = ')';
                st.pop_back();
                st.pop_back();
            }
        }
    }
    printf("%s\n", t);
    return 0;
}

Compilation message

match.cpp: In function 'bool inverse(int, std::vector<char>)':
match.cpp:19:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |         if(j < vec.size() && st.empty() && vec[j] == s[i])
      |            ~~^~~~~~~~~~~~
match.cpp:27:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         if(j==vec.size())
      |            ~^~~~~~~~~~~~
match.cpp: In function 'int main()':
match.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     scanf(" %s", s);
      |     ~~~~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #2
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 3 ms 348 KB Output is correct

Subtask #3
0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 29 ms 348 KB Output is correct
9 Correct 25 ms 600 KB Output is correct
10 Correct 23 ms 480 KB Output is correct
11 Correct 16 ms 348 KB Output is correct
12 Correct 1427 ms 568 KB Output is correct
13 Correct 1461 ms 852 KB Output is correct
14 Execution timed out 2045 ms 628 KB Time limit exceeded
15 Halted 0 ms 0 KB -