oj.uz

Submission #64219

# Submission time Handle Problem Language Result Execution time Memory
64219 2018-08-03T13:54:53 Z Talant parentrises (BOI18_parentrises) C++17
22 / 100
 222 ms 6560 KB 
#include <bits/stdc++.h>

#define mk make_pair
#define sc second
#define fr first
#define pb emplace_back
#define all(s) s.begin(), s.end()
#define sz(s) ( (int)s.size() )
#define Scan(a) scanf ("%I64d", &a)
#define scan(a) scanf ("%d", &a)

using namespace std;

const int inf = (int)1e9 + 7;
const int N = (int)2e5 + 7;

int t,k,n;
int b[N],blc[N];
char ans[N];

string a;

main () {
      cin >> k;
      cin >> t;

      while (t --) {
            int flag = 0,last = 0,lst = 0;
            cin >> a;

            n = a.size();

            for (int i = 0; i <= n; i ++) b[i] = blc[i] = 0,ans[i] = '0';

            for (int i = 0; i < a.size(); i ++) {
                  if (i > 0) b[i] = b[i - 1];
                  b[i] = max(0,b[i]);

                  if (a[i] == '(') b[i] ++;
                  else b[i] --;
                  if (b[i] < 0) ans[i] = 'B';
            }
            for (int i = n - 1; i >= 0; i --) {
                  if (i < n - 1) blc[i] = blc[i + 1];
                  blc[i] = max(0,blc[i]);

                  if (a[i] == ')') blc[i] ++;
                  else blc[i] --;
                  if (blc[i] < 0) ans[i] = 'B';
            }
            for (int i = 0; i < n; i ++) {
                  if (ans[i] == 'B') {
                        if (a[i] == ')') {
                              int f = 0;
                              for (int j = last; j < i; j ++) {
                                    if (ans[j] == '0' && a[j] == '('){ ans[j] = 'G',f = 1;last = j + 1;break;}
                              }
                              if (!f) {
                                    puts("impossible");
                                    flag = 1;
                                    break;
                              }
                        }
                        else {
                              int f = 0;
                              for (int j = max(i,lst); j < n; j ++) {
                                    if (ans[j] == '0' && a[j] == ')') { ans[j] = 'G',f = 1;lst = j + 1;break;
                                    }
                              }
                              if (!f) {
                                    puts("impossible");
                                    flag = 1;
                                    break;
                              }
                        }
                  }
            }
            if (flag) continue;

            for (int i = 0; i < n; i ++) {
                  if (ans[i] == '0') ans[i] = 'R';
                  cout << ans[i];
            }

            cout << endl;
      }
}

Compilation message

parentrises.cpp:23:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main () {
       ^
parentrises.cpp: In function 'int main()':
parentrises.cpp:35:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int i = 0; i < a.size(); i ++) {
                             ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 252 KB Output is correct
2 Correct 3 ms 356 KB Output is correct
3 Correct 3 ms 432 KB Output is correct
4 Correct 2 ms 508 KB Output is correct
5 Correct 3 ms 544 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 544 KB Output is correct
2 Correct 3 ms 592 KB Output is correct
3 Correct 3 ms 592 KB Output is correct
4 Correct 3 ms 592 KB Output is correct
5 Correct 2 ms 592 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 544 KB Output is correct
2 Correct 3 ms 592 KB Output is correct
3 Correct 3 ms 592 KB Output is correct
4 Correct 3 ms 592 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 3 ms 592 KB Output is correct
7 Correct 3 ms 592 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 4 ms 592 KB Output is correct
10 Correct 3 ms 592 KB Output is correct

Subtask #4
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 544 KB Output is correct
2 Correct 3 ms 592 KB Output is correct
3 Correct 3 ms 592 KB Output is correct
4 Correct 3 ms 592 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 3 ms 592 KB Output is correct
7 Correct 3 ms 592 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 4 ms 592 KB Output is correct
10 Correct 3 ms 592 KB Output is correct
11 Correct 6 ms 592 KB Output is correct
12 Correct 4 ms 720 KB Output is correct
13 Correct 4 ms 720 KB Output is correct
14 Correct 3 ms 720 KB Output is correct
15 Correct 4 ms 720 KB Output is correct
16 Correct 27 ms 752 KB Output is correct
17 Correct 11 ms 1776 KB Output is correct
18 Correct 13 ms 1776 KB Output is correct
19 Correct 19 ms 1776 KB Output is correct
20 Correct 14 ms 1836 KB Output is correct
21 Correct 222 ms 1836 KB Output is correct
22 Runtime error 75 ms 6560 KB Execution killed with signal 11 (could be triggered by violating memory limits)
23 Halted 0 ms 0 KB -

Subtask #5
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 6560 KB Expected integer, but "impossible" found

Subtask #6
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 6560 KB Expected integer, but "impossible" found

Subtask #7
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 6560 KB Expected integer, but "impossible" found