oj.uz

Submission #545761

# Submission time Handle Problem Language Result Execution time Memory
545761 2022-04-05T11:47:53 Z Koosha_mv Monochrome Points (JOI20_monochrome) C++14
35 / 100
 398 ms 7380 KB 
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first

const int N=4e5+99;

int n,t,ans,a[N],L[N],R[N],fenwik[N];
string s;
vector<int> vec0,vec1;

void add(int x, int val){ for (x++;x>0;x-=x&-x) fenwik[x]+=val; }
int get(int x) { int res=0; for(x++;x<N;x+=x&-x) res+=fenwik[x]; return res; }

bool check(int lx,int rx,int ly,int ry){
	if(lx>rx) swap(lx,rx);
	if(ly>ry) swap(ly,ry);
	if(lx>ly) swap(lx,ly),swap(rx,ry);
	return ly<rx && rx<ry;
}
int calc(int shift){
	f(i,0,N) fenwik[i]=0;
	int res=0;
	f(i,0,n){
		L[i]=min(vec0[i],vec1[(i+shift)%n]);
		R[i]=max(vec0[i],vec1[(i+shift)%n]);
		a[L[i]]=i;
		a[R[i]]=i;
	}
	f(i,0,2*n){
		if(L[a[i]]==i){
			add(i,1);
		}
		else{
			add(L[a[i]],-1);
			res+=get(L[a[i]]);
		}
	}
	return res;
}

int32_t main(){
	ios:: sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin>>n>>s;
	f(i,0,2*n) if(s[i]==s[0]) vec0.pb(i); else vec1.pb(i);
	int l=-1,r=n-1;
	while(l+1<r){
		int mid=(l+r)>>1;
		if(calc(mid)<calc(mid+1)){
			l=mid;
		}
		else{
			r=mid;
		}
	}
	cout<<calc(r);
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1876 KB Output is correct
5 Correct 1 ms 1876 KB Output is correct
6 Correct 2 ms 1876 KB Output is correct
7 Correct 1 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 1 ms 1876 KB Output is correct
11 Correct 1 ms 1876 KB Output is correct
12 Correct 1 ms 1876 KB Output is correct
13 Correct 1 ms 1876 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1876 KB Output is correct
5 Correct 1 ms 1876 KB Output is correct
6 Correct 2 ms 1876 KB Output is correct
7 Correct 1 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 1 ms 1876 KB Output is correct
11 Correct 1 ms 1876 KB Output is correct
12 Correct 1 ms 1876 KB Output is correct
13 Correct 1 ms 1876 KB Output is correct
14 Correct 3 ms 1876 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 1876 KB Output is correct
17 Correct 2 ms 1876 KB Output is correct
18 Correct 2 ms 1876 KB Output is correct
19 Correct 2 ms 1876 KB Output is correct
20 Correct 2 ms 1876 KB Output is correct
21 Correct 2 ms 1888 KB Output is correct
22 Correct 2 ms 1876 KB Output is correct
23 Correct 2 ms 1876 KB Output is correct
24 Correct 2 ms 1876 KB Output is correct
25 Correct 2 ms 1876 KB Output is correct
26 Correct 2 ms 1876 KB Output is correct
27 Correct 2 ms 1876 KB Output is correct
28 Correct 2 ms 1876 KB Output is correct
29 Correct 2 ms 1876 KB Output is correct
30 Correct 2 ms 1876 KB Output is correct
31 Correct 2 ms 1876 KB Output is correct
32 Correct 2 ms 1876 KB Output is correct
33 Correct 2 ms 1876 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1876 KB Output is correct
5 Correct 1 ms 1876 KB Output is correct
6 Correct 2 ms 1876 KB Output is correct
7 Correct 1 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 1 ms 1876 KB Output is correct
11 Correct 1 ms 1876 KB Output is correct
12 Correct 1 ms 1876 KB Output is correct
13 Correct 1 ms 1876 KB Output is correct
14 Correct 3 ms 1876 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 1876 KB Output is correct
17 Correct 2 ms 1876 KB Output is correct
18 Correct 2 ms 1876 KB Output is correct
19 Correct 2 ms 1876 KB Output is correct
20 Correct 2 ms 1876 KB Output is correct
21 Correct 2 ms 1888 KB Output is correct
22 Correct 2 ms 1876 KB Output is correct
23 Correct 2 ms 1876 KB Output is correct
24 Correct 2 ms 1876 KB Output is correct
25 Correct 2 ms 1876 KB Output is correct
26 Correct 2 ms 1876 KB Output is correct
27 Correct 2 ms 1876 KB Output is correct
28 Correct 2 ms 1876 KB Output is correct
29 Correct 2 ms 1876 KB Output is correct
30 Correct 2 ms 1876 KB Output is correct
31 Correct 2 ms 1876 KB Output is correct
32 Correct 2 ms 1876 KB Output is correct
33 Correct 2 ms 1876 KB Output is correct
34 Correct 4 ms 1876 KB Output is correct
35 Correct 4 ms 1876 KB Output is correct
36 Correct 4 ms 1876 KB Output is correct
37 Correct 4 ms 1876 KB Output is correct
38 Correct 4 ms 1876 KB Output is correct
39 Correct 4 ms 1876 KB Output is correct
40 Correct 3 ms 1876 KB Output is correct
41 Correct 4 ms 1876 KB Output is correct
42 Correct 4 ms 1876 KB Output is correct
43 Correct 4 ms 1876 KB Output is correct
44 Correct 4 ms 1964 KB Output is correct
45 Correct 4 ms 1876 KB Output is correct
46 Correct 4 ms 1876 KB Output is correct
47 Correct 4 ms 1876 KB Output is correct
48 Correct 4 ms 1876 KB Output is correct
49 Correct 4 ms 1876 KB Output is correct
50 Correct 4 ms 1876 KB Output is correct
51 Correct 4 ms 1876 KB Output is correct
52 Correct 4 ms 1876 KB Output is correct

Subtask #4
0.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1876 KB Output is correct
2 Correct 1 ms 1876 KB Output is correct
3 Correct 1 ms 1876 KB Output is correct
4 Correct 1 ms 1876 KB Output is correct
5 Correct 1 ms 1876 KB Output is correct
6 Correct 2 ms 1876 KB Output is correct
7 Correct 1 ms 1876 KB Output is correct
8 Correct 2 ms 1876 KB Output is correct
9 Correct 1 ms 1876 KB Output is correct
10 Correct 1 ms 1876 KB Output is correct
11 Correct 1 ms 1876 KB Output is correct
12 Correct 1 ms 1876 KB Output is correct
13 Correct 1 ms 1876 KB Output is correct
14 Correct 3 ms 1876 KB Output is correct
15 Correct 2 ms 1876 KB Output is correct
16 Correct 2 ms 1876 KB Output is correct
17 Correct 2 ms 1876 KB Output is correct
18 Correct 2 ms 1876 KB Output is correct
19 Correct 2 ms 1876 KB Output is correct
20 Correct 2 ms 1876 KB Output is correct
21 Correct 2 ms 1888 KB Output is correct
22 Correct 2 ms 1876 KB Output is correct
23 Correct 2 ms 1876 KB Output is correct
24 Correct 2 ms 1876 KB Output is correct
25 Correct 2 ms 1876 KB Output is correct
26 Correct 2 ms 1876 KB Output is correct
27 Correct 2 ms 1876 KB Output is correct
28 Correct 2 ms 1876 KB Output is correct
29 Correct 2 ms 1876 KB Output is correct
30 Correct 2 ms 1876 KB Output is correct
31 Correct 2 ms 1876 KB Output is correct
32 Correct 2 ms 1876 KB Output is correct
33 Correct 2 ms 1876 KB Output is correct
34 Correct 4 ms 1876 KB Output is correct
35 Correct 4 ms 1876 KB Output is correct
36 Correct 4 ms 1876 KB Output is correct
37 Correct 4 ms 1876 KB Output is correct
38 Correct 4 ms 1876 KB Output is correct
39 Correct 4 ms 1876 KB Output is correct
40 Correct 3 ms 1876 KB Output is correct
41 Correct 4 ms 1876 KB Output is correct
42 Correct 4 ms 1876 KB Output is correct
43 Correct 4 ms 1876 KB Output is correct
44 Correct 4 ms 1964 KB Output is correct
45 Correct 4 ms 1876 KB Output is correct
46 Correct 4 ms 1876 KB Output is correct
47 Correct 4 ms 1876 KB Output is correct
48 Correct 4 ms 1876 KB Output is correct
49 Correct 4 ms 1876 KB Output is correct
50 Correct 4 ms 1876 KB Output is correct
51 Correct 4 ms 1876 KB Output is correct
52 Correct 4 ms 1876 KB Output is correct
53 Incorrect 398 ms 7380 KB Output isn't correct
54 Halted 0 ms 0 KB -