Submission #202050

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
202050	2020-02-13 09:24:45	khohko	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	22 ms	3848 KiB

ho_t2

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#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ARRS ((ll)(4e5+100))
#define fr first
#define sc second
#define pb push_back
#define MX ((ll)(1e9+100))
#define MAX ((ll)(1e18+100))
ll n;
pair<ll,ll> a[ARRS];
ll b[ARRS];
ll ans[ARRS];
ll pl[ARRS];
ll pr[ARRS];
int main(){
  ll n,m;
  string s;
  cin>>n>>m;
  cin>>s;
  ll l=0,r=0,c=0;
  for(r=0; r<n&&c!=m; r++){
    c+=s[r]=='J';
    pl[r]=MAX;
  }
  if(c<m){
    cout<<-1;
    return 0;
  }
 
 
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• Subtask 1: 1 / 1
• Subtask 2: 12 / 12
• Subtask 3: 87 / 87