#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
#define pil pair<int,long long>
vector<int>pos[3];
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
//freopen("temp.INP","r",stdin);
//freopen("temp.OUT","w",stdout);
int n,k;
cin>>n>>k;
string s;
cin>>s;
s=" "+s;
int ans=n+1;
for1(i,1,n){
if (s[i]=='J')pos[0].pb(i);
if (s[i]=='O')pos[1].pb(i);
if (s[i]=='I')pos[2].pb(i);
}
for1(i,1,n){
if (s[i]=='J'){
int id=lower_bound(pos[0].begin(),pos[0].end(),i)-pos[0].begin();
if (id+k-1>=sz(pos[0]))continue;
int l1=i,r1=pos[0][id+k-1];
//if (i==2)cout<<l1<<" "<<r1<<'\n';
int id2=upper_bound(pos[1].begin(),pos[1].end(),r1)-pos[1].begin();
if (id2==sz(pos[1])||id2+k-1>=sz(pos[1]))continue;
int l2=pos[1][id2],r2=pos[1][id2+k-1];
//if (i==2)cout<<l2<<" "<<r2<<'\n';
int id3=upper_bound(pos[2].begin(),pos[2].end(),r2)-pos[2].begin();
if (id3==sz(pos[2])||id3+k-1>=sz(pos[2]))continue;
int l3=pos[2][id3],r3=pos[2][id3+k-1];
//if (i==2)cout<<l3<<" "<<r3<<'\n';
ans=min(ans,r3-l1+1-3*k);
}
}
if (ans>n)ans=-1;
cout<<ans;
}
Compilation message
ho_t2.cpp: In function 'int main()':
ho_t2.cpp:43:13: warning: unused variable 'l2' [-Wunused-variable]
43 | int l2=pos[1][id2],r2=pos[1][id2+k-1];
| ^~
ho_t2.cpp:47:13: warning: unused variable 'l3' [-Wunused-variable]
47 | int l3=pos[2][id3],r3=pos[2][id3+k-1];
| ^~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
316 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
316 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
320 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
304 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
316 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
324 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
1 ms |
272 KB |
Output is correct |
33 |
Correct |
1 ms |
316 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
316 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
320 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
304 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
316 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
324 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
1 ms |
272 KB |
Output is correct |
33 |
Correct |
1 ms |
316 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
13 ms |
1672 KB |
Output is correct |
37 |
Correct |
14 ms |
2076 KB |
Output is correct |
38 |
Correct |
14 ms |
1940 KB |
Output is correct |
39 |
Correct |
13 ms |
1948 KB |
Output is correct |
40 |
Correct |
11 ms |
1948 KB |
Output is correct |
41 |
Correct |
12 ms |
2040 KB |
Output is correct |
42 |
Correct |
14 ms |
2080 KB |
Output is correct |
43 |
Correct |
6 ms |
1356 KB |
Output is correct |
44 |
Correct |
8 ms |
1480 KB |
Output is correct |
45 |
Correct |
10 ms |
2204 KB |
Output is correct |
46 |
Correct |
11 ms |
1948 KB |
Output is correct |
47 |
Correct |
10 ms |
1936 KB |
Output is correct |
48 |
Correct |
10 ms |
1948 KB |
Output is correct |
49 |
Correct |
8 ms |
1472 KB |
Output is correct |
50 |
Correct |
12 ms |
2192 KB |
Output is correct |
51 |
Correct |
10 ms |
1968 KB |
Output is correct |
52 |
Correct |
7 ms |
1688 KB |
Output is correct |
53 |
Correct |
8 ms |
1948 KB |
Output is correct |
54 |
Correct |
7 ms |
1932 KB |
Output is correct |
55 |
Correct |
6 ms |
1984 KB |
Output is correct |
56 |
Correct |
5 ms |
1940 KB |
Output is correct |