oj.uz

Submission #296803

# Submission time Handle Problem Language Result Execution time Memory
296803 2020-09-10T22:06:33 Z Bruteforceman JJOOII 2 (JOI20_ho_t2) C++11
100 / 100
 18 ms 3344 KB 
#include "bits/stdc++.h"
using namespace std;
const int inf = 1e9;
string s;
vector <int> solve(char c, int k) {
	vector <int> v (s.size());
	int r = 0;
	int cnt = 0;
	for(int i = 0; i < s.size(); i++) {
		while(r < s.size() && cnt < k) {
			cnt += (s[r] == c);
			++r;
		}
		v[i] = (cnt == k) ? r : inf;
		cnt -= (s[i] == c);
	}	
	return v;
}
int main(int argc, char const *argv[])
{
	int n, k;
	cin >> n >> k;
	cin >> s;
	map <char, int> cnt;
	int r = 0;
	int ans = inf;
	vector <int> a[3];
	a[0] = solve('J', k);
	a[1] = solve('O', k);
	a[2] = solve('I', k); 
	for(int i = 0; i < n; i++) {
		int cur = i;
		for(int j = 0; j < 3; j++) {
			if(cur >= s.size()) {
				cur = inf;
				break;
			}
			cur = a[j][cur];
		}
		ans = min(ans, cur - i - 3 * k);
	}
 	if(ans > n) ans = -1;
 	cout << ans << endl;
	return 0;
}

Compilation message

ho_t2.cpp: In function 'std::vector<int> solve(char, int)':
ho_t2.cpp:9:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for(int i = 0; i < s.size(); i++) {
      |                 ~~^~~~~~~~~~
ho_t2.cpp:10:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |   while(r < s.size() && cnt < k) {
      |         ~~^~~~~~~~~~
ho_t2.cpp: In function 'int main(int, const char**)':
ho_t2.cpp:34:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |    if(cur >= s.size()) {
      |       ~~~~^~~~~~~~~~~
ho_t2.cpp:25:6: warning: unused variable 'r' [-Wunused-variable]
   25 |  int r = 0;
      |      ^

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 15 ms 3088 KB Output is correct
37 Correct 18 ms 3216 KB Output is correct
38 Correct 16 ms 3216 KB Output is correct
39 Correct 18 ms 3216 KB Output is correct
40 Correct 18 ms 3216 KB Output is correct
41 Correct 18 ms 3216 KB Output is correct
42 Correct 18 ms 3216 KB Output is correct
43 Correct 11 ms 2192 KB Output is correct
44 Correct 13 ms 2576 KB Output is correct
45 Correct 17 ms 3216 KB Output is correct
46 Correct 17 ms 3344 KB Output is correct
47 Correct 16 ms 3216 KB Output is correct
48 Correct 16 ms 3216 KB Output is correct
49 Correct 12 ms 2332 KB Output is correct
50 Correct 17 ms 3216 KB Output is correct
51 Correct 16 ms 3216 KB Output is correct
52 Correct 14 ms 3088 KB Output is correct
53 Correct 14 ms 3248 KB Output is correct
54 Correct 14 ms 3216 KB Output is correct
55 Correct 13 ms 3216 KB Output is correct
56 Correct 13 ms 3216 KB Output is correct