제출 #339706

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
339706		prasanth30	Miners (IOI07_miners)	C++14	0 / 100	12 ms	620 KiB

miners

#include <bits/stdc++.h>
using namespace std;
#define int long long int
#define float long double
const int INF=1e18;
inline void solve(){
    int n;cin>>n;
    int ans=0;
    string s;cin>>s;
    for(int i=0;i<n;i++){
        if(i==0)ans++;
        else if(i==1)ans+=1+(s[0]!=s[1]);
        set<char> ss;ss.insert(s[i]);
        ss.insert(s[i-1]);ss.insert(s[i-2]);
        ans+=ss.size();
    }
    cout<<ans;
}
signed main(){
	cin.tie(0)->sync_with_stdio(false);
	int t=1;//cin>>t;
	while(t--){
		solve();
	}
}

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