oj.uz

Submission #545762

# Submission time Handle Problem Language Result Execution time Memory
545762 2022-04-05T11:48:29 Z Koosha_mv Monochrome Points (JOI20_monochrome) C++14
100 / 100
 371 ms 7772 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,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;
}
ll calc(int shift){
	f(i,0,N) fenwik[i]=0;
	ll 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 1 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 1 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 2 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 1876 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 3 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 1836 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 1 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 2 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 1876 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 3 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 1836 KB Output is correct
33 Correct 2 ms 1876 KB Output is correct
34 Correct 4 ms 1876 KB Output is correct
35 Correct 5 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 3 ms 1876 KB Output is correct
42 Correct 5 ms 1876 KB Output is correct
43 Correct 4 ms 1888 KB Output is correct
44 Correct 4 ms 1876 KB Output is correct
45 Correct 4 ms 1876 KB Output is correct
46 Correct 5 ms 1964 KB Output is correct
47 Correct 4 ms 1876 KB Output is correct
48 Correct 4 ms 1972 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 1964 KB Output is correct
52 Correct 4 ms 1876 KB Output is correct

Subtask #4
65.0 / 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 1 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 2 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 1876 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 3 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 1836 KB Output is correct
33 Correct 2 ms 1876 KB Output is correct
34 Correct 4 ms 1876 KB Output is correct
35 Correct 5 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 3 ms 1876 KB Output is correct
42 Correct 5 ms 1876 KB Output is correct
43 Correct 4 ms 1888 KB Output is correct
44 Correct 4 ms 1876 KB Output is correct
45 Correct 4 ms 1876 KB Output is correct
46 Correct 5 ms 1964 KB Output is correct
47 Correct 4 ms 1876 KB Output is correct
48 Correct 4 ms 1972 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 1964 KB Output is correct
52 Correct 4 ms 1876 KB Output is correct
53 Correct 371 ms 7388 KB Output is correct
54 Correct 367 ms 7520 KB Output is correct
55 Correct 347 ms 7516 KB Output is correct
56 Correct 360 ms 7512 KB Output is correct
57 Correct 338 ms 7492 KB Output is correct
58 Correct 334 ms 7520 KB Output is correct
59 Correct 323 ms 7212 KB Output is correct
60 Correct 315 ms 7516 KB Output is correct
61 Correct 314 ms 7596 KB Output is correct
62 Correct 339 ms 7644 KB Output is correct
63 Correct 355 ms 7516 KB Output is correct
64 Correct 326 ms 7308 KB Output is correct
65 Correct 333 ms 7316 KB Output is correct
66 Correct 307 ms 7220 KB Output is correct
67 Correct 330 ms 7244 KB Output is correct
68 Correct 336 ms 6992 KB Output is correct
69 Correct 323 ms 7464 KB Output is correct
70 Correct 302 ms 7032 KB Output is correct
71 Correct 324 ms 7520 KB Output is correct
72 Correct 331 ms 7524 KB Output is correct
73 Correct 366 ms 7772 KB Output is correct