Submission #754047

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
754047	2023-06-06T14:04:11 Z	vjudge1	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	17 ms	5572 KB

ho_t2

//gm  --- akezhon  
#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define int long long
#define pb push_back
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int> 
using namespace std;
int n, k, mn;
string s;
vector <int> pj(200005), po(200005), pi(200005);
void emash(){
	
	cin >> n >> k >> s;
	if ( n == 3 ){
		if ( k == 1 && s == "JOI" )cout << 0;
		else cout << -1;
		return;
	}
	for(int i=0; i < n; i++){
		if ( 0 < i ){
			pj[i] = pj[i-1];
			po[i] = po[i-1];
			pi[i] = pi[i-1];
		}
		if ( s[i] == 'J' )pj[i]++;
		if ( s[i] == 'O' )po[i]++;
		if ( s[i] == 'I' )pi[i]++;
	}
	mn = 1e9;
	for(int i=0; i < n; i++){
		if ( s[i] != 'J' )continue;
		int l=i, r=n, f=pj[i]+k-1, pos=0;
		while(l <= r){
			int m = (l+r)/2;
			if ( f <= pj[m] )r=m-1, pos=m;
		 	else l=m+1;
		}
		if ( pos == 0 )continue;
		l = pos+1;
		r = n;
		f = po[l-1]+k;
		pos = 0;
		while(l <= r){
			int m = (l+r)/2;
			if ( f <= po[m] )r=m-1, pos=m; 
			else l=m+1;
		}
		if ( pos == 0 )continue;
		l = pos+1;
		r = n;
		f = pi[l-1]+k;
		pos = 0;
		while(l <= r){
			int m = (l+r)/2;
			if ( f <= pi[m] )r=m-1, pos=m;
			else l=m+1;
		}
		if ( pos == 0 )continue;
		//cout << 3 << ' ' << r << '\n';
		mn = min(mn, pos-i+1-3*k);
	}
	cout << (mn == 1e9 ? -1 : mn);
}
signed main(){

	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	//freopen("262144.in", "r", stdin);
	//freopen("262144.out", "w", stdout);
	
	int RealName=1;
	//cin >> RealName;
	int C=0;
	while(RealName--){
		//cout << "Case " << ++C << ":\n";
		emash();
	}

return 0;
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:79:6: warning: unused variable 'C' [-Wunused-variable]
   79 |  int C=0;
      |      ^

Subtask #1
1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4992 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	4 ms	4948 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4992 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	4 ms	4948 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	5028 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	3 ms	5028 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	3 ms	5028 KB	Output is correct
22	Correct	3 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	2 ms	4948 KB	Output is correct
26	Correct	4 ms	5020 KB	Output is correct
27	Correct	3 ms	4948 KB	Output is correct
28	Correct	3 ms	5028 KB	Output is correct
29	Correct	4 ms	4948 KB	Output is correct
30	Correct	3 ms	4948 KB	Output is correct
31	Correct	2 ms	4948 KB	Output is correct
32	Correct	2 ms	5032 KB	Output is correct
33	Correct	3 ms	4948 KB	Output is correct
34	Correct	3 ms	5028 KB	Output is correct
35	Correct	3 ms	5028 KB	Output is correct

Subtask #3
87.0 / 87.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4992 KB	Output is correct
8	Correct	3 ms	4948 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	3 ms	4948 KB	Output is correct
13	Correct	3 ms	4948 KB	Output is correct
14	Correct	4 ms	4948 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	3 ms	5028 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	3 ms	5028 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	3 ms	5028 KB	Output is correct
22	Correct	3 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	2 ms	4948 KB	Output is correct
26	Correct	4 ms	5020 KB	Output is correct
27	Correct	3 ms	4948 KB	Output is correct
28	Correct	3 ms	5028 KB	Output is correct
29	Correct	4 ms	4948 KB	Output is correct
30	Correct	3 ms	4948 KB	Output is correct
31	Correct	2 ms	4948 KB	Output is correct
32	Correct	2 ms	5032 KB	Output is correct
33	Correct	3 ms	4948 KB	Output is correct
34	Correct	3 ms	5028 KB	Output is correct
35	Correct	3 ms	5028 KB	Output is correct
36	Correct	10 ms	5444 KB	Output is correct
37	Correct	11 ms	5472 KB	Output is correct
38	Correct	11 ms	5524 KB	Output is correct
39	Correct	17 ms	5460 KB	Output is correct
40	Correct	12 ms	5472 KB	Output is correct
41	Correct	13 ms	5472 KB	Output is correct
42	Correct	13 ms	5516 KB	Output is correct
43	Correct	7 ms	5332 KB	Output is correct
44	Correct	9 ms	5520 KB	Output is correct
45	Correct	11 ms	5472 KB	Output is correct
46	Correct	11 ms	5472 KB	Output is correct
47	Correct	11 ms	5460 KB	Output is correct
48	Correct	10 ms	5472 KB	Output is correct
49	Correct	8 ms	5460 KB	Output is correct
50	Correct	11 ms	5508 KB	Output is correct
51	Correct	11 ms	5472 KB	Output is correct
52	Correct	8 ms	5412 KB	Output is correct
53	Correct	8 ms	5472 KB	Output is correct
54	Correct	12 ms	5572 KB	Output is correct
55	Correct	9 ms	5428 KB	Output is correct
56	Correct	6 ms	5456 KB	Output is correct

Submission #754047

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 12.0 / 12.0

Subtask #3 87.0 / 87.0

Subtask #1
1.0 / 1.0

Subtask #2
12.0 / 12.0

Subtask #3
87.0 / 87.0