oj.uz

Submission #216817

# Submission time Handle Problem Language Result Execution time Memory
216817 2020-03-28T06:13:48 Z oolimry JJOOII 2 (JOI20_ho_t2) C++14
100 / 100
 11 ms 4740 KB 
#include <bits/stdc++.h>

using namespace std;
typedef pair<long long, long long> ii;
long long inf = 1e9;
long long pre[200005];
long long suf[200005];
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	
	long long ans = inf;
	int n, k; cin >> n >> k;
	string s; cin >> s;
	vector<int> O;
	
	deque<long long> dq;
	for(int i = 0;i < k;i++) dq.push_back(inf);
	
	for(int i = 0;i < n;i++){
		if(s[i] == 'J'){
			dq.push_back(i);
			dq.pop_front();
		}
		else if(s[i] == 'O'){
			pre[i] = dq.front();
			O.push_back(i);
		}
	}
	
	dq.clear();
	for(int i = 0;i < k;i++) dq.push_back(inf);
	for(int i = n-1;i >= 0;i--){
		if(s[i] == 'I'){
			dq.push_back(i);
			dq.pop_front();
		}
		else if(s[i] == 'O'){
			suf[i] = dq.front();
		}
	}
	
	for(int i = 0;i <= O.size() - k;i++){
		long long L = pre[O[i]];
		long long R = suf[O[i+k-1]];
		if(L == inf || R == inf) continue;
		ans = min(ans, R - L + 1);
	}
	
	if(ans >= inf/2) ans = -1;
	else{
		ans -= 3 * k;
	}
	
	cout << ans;
}

/*
10 2
OJIJOIOIIJ
*/

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0;i <= O.size() - k;i++){
                ~~^~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 8 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 4 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 8 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 4 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 11 ms 3976 KB Output is correct
37 Correct 11 ms 4228 KB Output is correct
38 Correct 11 ms 4228 KB Output is correct
39 Correct 11 ms 4228 KB Output is correct
40 Correct 11 ms 4488 KB Output is correct
41 Correct 11 ms 4356 KB Output is correct
42 Correct 11 ms 4232 KB Output is correct
43 Correct 9 ms 2940 KB Output is correct
44 Correct 10 ms 3572 KB Output is correct
45 Correct 11 ms 4496 KB Output is correct
46 Correct 11 ms 4496 KB Output is correct
47 Correct 11 ms 4500 KB Output is correct
48 Correct 11 ms 4500 KB Output is correct
49 Correct 9 ms 3080 KB Output is correct
50 Correct 11 ms 4500 KB Output is correct
51 Correct 11 ms 4500 KB Output is correct
52 Correct 11 ms 4616 KB Output is correct
53 Correct 11 ms 4740 KB Output is correct
54 Correct 7 ms 2180 KB Output is correct
55 Correct 8 ms 2564 KB Output is correct
56 Correct 8 ms 2696 KB Output is correct