oj.uz

Submission #205561

# Submission time Handle Problem Language Result Execution time Memory
205561 2020-02-29T08:07:35 Z nafis_shifat JJOOII 2 (JOI20_ho_t2) C++14
100 / 100
 32 ms 3128 KB 
#include<bits/stdc++.h>
#define pii pair<int,int>
#define ll long long
using namespace std;

int bs(int lo,int hi,int *ar,int k)
{
	int in;
	if(lo>0)in=ar[lo-1];
	else in=0;
	int rs=-1;
	
	//cout<<ar[1]<<endl;
	while(lo<=hi)
	{
		int mid=lo+hi>>1;
		if(ar[mid]-in>=k)
		{
			rs=mid;
			hi=mid-1;
		}
		else lo=mid+1;
	}

	return rs;
}

int main()
{
	int n,k;
	cin>>n>>k;
	string s;
	cin>>s;

	int J[n]={};
	int O[n]={};
	int I[n]={};
	if(s[0]=='J')J[0]++;
	else if(s[0]=='O')O[0]++;
	else I[0]++;

	int ans=1e9+10;



	for(int i=1;i<n;i++)
	{
		J[i]=J[i-1];
		O[i]=O[i-1];
		I[i]=I[i-1];
		if(s[i]=='J')J[i]++;
	    else if(s[i]=='O')O[i]++;
	    else I[i]++;
	}

	for(int i=0;i<n;i++)
	{
		if(s[i]!='J')continue;
		int n1=bs(i,n-1,J,k);
        
		if(n1==-1)continue;
		int n2=bs(n1+1,n-1,O,k);
		if(n2==-1)continue;
		int n3=bs(n2+1,n-1,I,k);
		if(n3==-1)continue;
		
		

		int d=n3-i+1;
		d-=3*k;

		ans=min(d,ans);


	}
    if(ans==1e9+10)cout<<-1<<endl;
	else cout<<ans<<endl;



	return 0;
}

Compilation message

ho_t2.cpp: In function 'int bs(int, int, int*, int)':
ho_t2.cpp:16:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid=lo+hi>>1;
           ~~^~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 4 ms 248 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 296 KB Output is correct
11 Correct 4 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 4 ms 256 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 4 ms 248 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 296 KB Output is correct
11 Correct 4 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 4 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 6 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 6 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 7 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 6 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 6 ms 376 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 4 ms 248 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 296 KB Output is correct
11 Correct 4 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 4 ms 256 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 6 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 6 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 6 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 7 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 6 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 6 ms 376 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 26 ms 2824 KB Output is correct
37 Correct 25 ms 2952 KB Output is correct
38 Correct 28 ms 2952 KB Output is correct
39 Correct 32 ms 2984 KB Output is correct
40 Correct 25 ms 2952 KB Output is correct
41 Correct 29 ms 2952 KB Output is correct
42 Correct 28 ms 2948 KB Output is correct
43 Correct 18 ms 2056 KB Output is correct
44 Correct 20 ms 2444 KB Output is correct
45 Correct 25 ms 2952 KB Output is correct
46 Correct 24 ms 2952 KB Output is correct
47 Correct 24 ms 2952 KB Output is correct
48 Correct 24 ms 3128 KB Output is correct
49 Correct 18 ms 2184 KB Output is correct
50 Correct 26 ms 2952 KB Output is correct
51 Correct 25 ms 3080 KB Output is correct
52 Correct 20 ms 2956 KB Output is correct
53 Correct 21 ms 2952 KB Output is correct
54 Correct 24 ms 2952 KB Output is correct
55 Correct 21 ms 2952 KB Output is correct
56 Correct 21 ms 2952 KB Output is correct