Submission #927620

#	Time	Username	Problem	Language	Result	Execution time	Memory
927620		Aiperiii	JJOOII 2 (JOI20_ho_t2)	C++14	13 / 100	2091 ms	860 KiB

ho_t2

#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define pb push_back
using namespace std;
signed main(){
    int n,k;
    cin>>n>>k;
    string s;cin>>s;
    int mn=1e9;
    string t="";
    for(int i=0;i<k;i++)t+='J';
    for(int i=0;i<k;i++)t+='O';
    for(int i=0;i<k;i++)t+='I';
    for(int i=0;i<s.size();i++){
        if(s[i]=='J'){
            int pos=0,cnt=0;
            for(int j=i;j<s.size();j++){
                if(s[j]==t[pos])pos++;
                else cnt++;
                if(pos==t.size()){
                    mn=min(mn,cnt);
                    break;
                }
            }
        }
    }
    if(mn==1e9)mn=-1;
    cout<<mn<<"\n";
}

Compilation message (stderr)

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:17:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
ho_t2.cpp:20:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |             for(int j=i;j<s.size();j++){
      |                         ~^~~~~~~~~
ho_t2.cpp:23:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |                 if(pos==t.size()){
      |                    ~~~^~~~~~~~~~

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