Submission #781517

#	Time	Username	Problem	Language	Result	Execution time	Memory
781517		vjudge1	JJOOII 2 (JOI20_ho_t2)	C++17	0 / 100	0 ms	212 KiB

ho_t2

#include<bits/stdc++.h>
using namespace std;
#define lalala ios_base::sync_with_stdio(false);cin.tie(NULL);
#define endl "\n"
#define ll long long
#define pb push_back
#define N 
int main(){
	int n,k;cin>>n>>k;
	string str;cin>>str;
	int ans=1000000000;
	for(int i=0;i<n;i++){
		int j=0,o=0,I=0;
		int cur=0;
		int son,ner,de;
		for(int jj=i;jj<n;jj++){
			//cout<<i<<" "<<jj<<" "<<j<<" "<<o<<" "<<I<<" "<<cur<<" "<<str[jj]<<endl;
			if(str[jj]=='J'){
				if(j==k)continue;
				if(j==0){
					son=jj;
					j++;
				}
				else{
					cur+=jj-son-1;
					son=jj;
					j++;
				}
			}
			if(str[jj]=='O'){
				if(j!=k)continue;
				if(o==k)continue;
				if(o==0){
					ner=jj;
					cur+=ner-son-1;
					o++;
				}
				else{
					cur+=jj-ner-1;
					ner=jj;
					o++;
				}
			}
			if(str[jj]=='I'){
				if(j!=k||o!=k)continue;
				if(I==0){
					de=jj;
					cur+=de-ner-1;I++;
				}
				else{
					cur+=jj-de-1;
					de=jj;
					I++;
					if(I==k){
						ans=min(ans,cur);break;
					}
				}
			}
		}
	}
	if(ans==1000000000)ans=-1;
	cout<<ans<<endl;
	



}

Compilation message (stderr)

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:48:13: warning: 'ner' may be used uninitialized in this function [-Wmaybe-uninitialized]
   48 |      cur+=de-ner-1;I++;
      |           ~~^~~~
ho_t2.cpp:35:14: warning: 'son' may be used uninitialized in this function [-Wmaybe-uninitialized]
   35 |      cur+=ner-son-1;
      |           ~~~^~~~

• Subtask 1: 0 / 1
• Subtask 2: 0 / 12
• Subtask 3: 0 / 87