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답안 #175751

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
175751 2020-01-07T10:42:55 Z Ruxandra985 괄호 문자열 (CEOI16_match) C++14
37 / 100
 2000 ms 416 KB 
/// oare cat de bine merge in practica?
#include <bits/stdc++.h>

using namespace std;
int s[100010];
char sol[100010];
int ok;
int stk[100010];
int match (int st , int dr){
    int i , elem = 0;

    for (i=st;i<=dr;i++){
        if (elem && stk[elem] == s[i])
            elem--;
        else stk[++elem] = s[i];
    }
    return (elem == 0);

}
void solve (int st , int dr){
    int i;
    if (st > dr)
        return;
    if (!ok) /// nu mai are rost
        return;
    /// stii ca pe st pui ( , gaseste i match ul

    for (i = ( ( (dr & 1) != (st & 1) ) ? dr : dr - 1); i >= st + 1 ; i-=2){
        if (match(st + 1 , i - 1) && match(i + 1 , dr))
            break;
    }
    if (i < st + 1){
        ok = 0;
        return;
    }
    else {
        sol[st] = '(';
        sol[i] = ')';
        solve(st + 1 , i - 1);
        solve (i + 1 , dr);
    }
}
int main()
{
    FILE *fin = stdin;
    FILE *fout = stdout;
    int n , i;
    char c;
    c=fgetc(fin);
    n = 0;
    while ( 'a' <= c && c <= 'z' ){
        s[++n] = c-'a';
        c=fgetc(fin);
    }
    ok = 1;
    solve (1 , n);
    if (ok == 0){
        fprintf (fout,"%d\n",-1);
    }
    else {
        for (i=1;i<=n;i++)
            fputc(sol[i],fout);
    }
    return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct

Subtask #2
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 6 ms 348 KB Output is correct
5 Correct 7 ms 380 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 21 ms 376 KB Output is correct

Subtask #3
0 / 63.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 6 ms 348 KB Output is correct
5 Correct 7 ms 380 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 21 ms 376 KB Output is correct
8 Correct 439 ms 416 KB Output is correct
9 Execution timed out 2035 ms 408 KB Time limit exceeded
10 Halted 0 ms 0 KB -