Submission #992660

#	Time	Username	Problem	Language	Result	Execution time	Memory
992660		ezzzay	Miners (IOI07_miners)	C++14	45 / 100	1567 ms	788 KiB

miners

#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
const int N=3e5+5;
signed main(){
    int n;
    string s;
    int mx=0;
    cin>>n>>s;
    for(int i=0;i<(1<<n);i++){
        int h=0,u=0;
        int k=0;
        vector<char>v1,v2;
        for(int j=0;j<n;j++){
            if(i&(1<<j)){
                v1.pb(s[j]);
                set<char>st;
                st.insert(v1.back());
                if(v1.size()>1){
                    st.insert(v1[v1.size()-2]);
                }
                if(v1.size()>2){
                    st.insert(v1[v1.size()-3]);
                }
                k+=st.size();
            }
            else{
                v2.pb(s[j]);
                set<char>st;
                st.insert(v2.back());
                if(v2.size()>1){
                    st.insert(v2[v2.size()-2]);
                }
                if(v2.size()>2){
                    st.insert(v2[v2.size()-3]);
                }
                k+=st.size();
            }
        }
        mx=max(mx,k);
    }
    cout<<mx;
}

Compilation message (stderr)

miners.cpp: In function 'int main()':
miners.cpp:13:13: warning: unused variable 'h' [-Wunused-variable]
   13 |         int h=0,u=0;
      |             ^
miners.cpp:13:17: warning: unused variable 'u' [-Wunused-variable]
   13 |         int h=0,u=0;
      |                 ^

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 0 / 7
• Subtask 7: 0 / 8
• Subtask 8: 0 / 8
• Subtask 9: 0 / 8
• Subtask 10: 0 / 8
• Subtask 11: 0 / 8
• Subtask 12: 0 / 8