oj.uz

Submission #869214

# Submission time Handle Problem Language Result Execution time Memory
869214 2023-11-03T14:04:42 Z goodspeed0208 JJOOII 2 (JOI20_ho_t2) C++14
13 / 100
 2000 ms 13660 KB 
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;

signed main() {
	int n, k;
	cin >> n>> k;
	string s;
	cin >> s;
	vector<int>v(n);
	for (int i = 0 ; i < n ; i++) {
		if (s[i] == 'J') v[i] = 0;
		else if (s[i] == 'O') v[i] = 1;
		else v[i] = 2;
	}
	vector<vector<int> >num(n, vector<int>(3, 0));
	vector<vector<int> >pos(3);
	num[0][v[0]]++;
	pos[v[0]].push_back(0);
	for (int i = 1 ; i < n ; i++) {
		num[i] = num[i-1];
		num[i][v[i]] = num[i-1][v[i]]+1;
		pos[v[i]].push_back(i);
	} 
	int mn = -1;
	for (int i = 0 ; i < n ; i++) {
		for (int j = i+k*3-1 ; j < n ; j++) {
			int numj, numi;
			if (i == 0) numj = 0;
			else numj = num[i-1][0];
			numi = num[j][2];
			if (numj + k > pos[0].size() || numi < k) {
				continue;
			}
			int posj = pos[0][(numj + k) - 1];
			int posi = pos[2][(numi - k + 1) - 1];
			if (num[posi][1] - num[posj][1] >= k) {
				//cout << i << " " << j << "\n";
				if (mn == -1) mn = j - i + 1;
				else mn = min(mn, j-i+1);
				break;
			}
		}
	}
	if (mn == -1) cout << "-1\n";
	else cout << mn - k * 3 << "\n";
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:33:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |    if (numj + k > pos[0].size() || numi < k) {
      |        ~~~~~~~~~^~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 436 KB Output is correct
4 Correct 0 ms 436 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 432 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 436 KB Output is correct
4 Correct 0 ms 436 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 432 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 4 ms 624 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 9 ms 636 KB Output is correct
22 Correct 8 ms 604 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 10 ms 604 KB Output is correct
25 Correct 7 ms 604 KB Output is correct
26 Correct 6 ms 436 KB Output is correct
27 Correct 7 ms 632 KB Output is correct
28 Correct 6 ms 604 KB Output is correct
29 Correct 6 ms 648 KB Output is correct
30 Correct 9 ms 604 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 3 ms 600 KB Output is correct
33 Correct 6 ms 856 KB Output is correct
34 Correct 4 ms 600 KB Output is correct
35 Correct 1 ms 604 KB Output is correct

Subtask #3
0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 436 KB Output is correct
4 Correct 0 ms 436 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 432 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 4 ms 348 KB Output is correct
19 Correct 4 ms 624 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 9 ms 636 KB Output is correct
22 Correct 8 ms 604 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 10 ms 604 KB Output is correct
25 Correct 7 ms 604 KB Output is correct
26 Correct 6 ms 436 KB Output is correct
27 Correct 7 ms 632 KB Output is correct
28 Correct 6 ms 604 KB Output is correct
29 Correct 6 ms 648 KB Output is correct
30 Correct 9 ms 604 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 3 ms 600 KB Output is correct
33 Correct 6 ms 856 KB Output is correct
34 Correct 4 ms 600 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Correct 19 ms 12500 KB Output is correct
37 Correct 20 ms 13604 KB Output is correct
38 Correct 20 ms 13660 KB Output is correct
39 Execution timed out 2045 ms 13516 KB Time limit exceeded
40 Halted 0 ms 0 KB -