Submission #821611

# Submission time Handle Problem Language Result Execution time Memory
821611 2023-08-11T12:05:06 Z vjudge1 JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
9 ms 11792 KB
#include<bits/stdc++.h>
//#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma,tune=native")
#define pii pair<int, int>
#define fi first
#define se second
#define pb push_back
#define int long long
//#define ld long double
using namespace std;
using ll=long long;
const int inf = 1e18;
const int MN =200005;
const int mod=1e9+7;
int n,k;
string s;
int posj[MN], poso[MN], posi[MN];
int lj[MN], li[MN], lo[MN],valj[MN], vali[MN], valo[MN];
void solve() {
	cin>>n>>k>>s;
	int cnti=0,cntj=0,cnto=0;
	for (int i=0; i<n; i++) {
		if(i>0) {
			valo[i]=valo[i-1];
			valj[i]=valj[i-1];
			vali[i]=vali[i-1];
		}
		
		if(s[i]=='O') cnto++,poso[cnto]=i, valo[i]=cnto;
		if(s[i]=='J') cntj++,posj[cntj]=i, valj[i]=cntj;
		if(s[i]=='I') cnti++,posi[cnti]=i, vali[i]=cnti;
	}
	for (int i=0; i<n; i++) {
		if(valj[i]<k) lj[i]=-1;
		else lj[i]=posj[valj[i]-k+1];
		if(valo[i]<k) lo[i]=-1;
		else lo[i]=poso[valo[i]-k+1];
		if(vali[i]<k) li[i]=-1;
		else li[i]=posi[vali[i]-k+1];
	}
//	for (int i=0; i<n; i++) {
//		cout<<lj[i]<<" "<<lo[i]<<" "<<li[i]<<"\n";
//	}
	int ans=inf;
	for (int r=n-1; r>=0; r--) {
		if(s[r]!='I') continue;
		int l;
		l=li[r];
		if(l==-1) continue;
		l=lo[l];
		if(l==-1) continue;
		l=lj[l];
		if(l==-1) continue;
//		cout<<l<<" "<<r<<"\n";
		ans=min(ans,r-l+1-3*k);
	}
	if(ans==inf) cout<<-1;
	else cout<<ans;
}
signed main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
//	freopen(".inp", "r", stdin);
//	freopen(".out", "w", stdout);
	int t=1;
//	cin>>t;
	while(t--) {
		solve();
	}
		
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 1 ms 456 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 452 KB Output is correct
25 Correct 1 ms 452 KB Output is correct
26 Correct 0 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 0 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 0 ms 468 KB Output is correct
35 Correct 0 ms 468 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 1 ms 456 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 452 KB Output is correct
25 Correct 1 ms 452 KB Output is correct
26 Correct 0 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 0 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 0 ms 468 KB Output is correct
35 Correct 0 ms 468 KB Output is correct
36 Correct 6 ms 10976 KB Output is correct
37 Correct 7 ms 11744 KB Output is correct
38 Correct 9 ms 11744 KB Output is correct
39 Correct 7 ms 11728 KB Output is correct
40 Correct 7 ms 11732 KB Output is correct
41 Correct 7 ms 11744 KB Output is correct
42 Correct 7 ms 11776 KB Output is correct
43 Correct 5 ms 7504 KB Output is correct
44 Correct 6 ms 9180 KB Output is correct
45 Correct 9 ms 11764 KB Output is correct
46 Correct 7 ms 11744 KB Output is correct
47 Correct 7 ms 11744 KB Output is correct
48 Correct 8 ms 11792 KB Output is correct
49 Correct 5 ms 8032 KB Output is correct
50 Correct 7 ms 11728 KB Output is correct
51 Correct 7 ms 11744 KB Output is correct
52 Correct 7 ms 11360 KB Output is correct
53 Correct 7 ms 11776 KB Output is correct
54 Correct 6 ms 11744 KB Output is correct
55 Correct 5 ms 11744 KB Output is correct
56 Correct 6 ms 11748 KB Output is correct