Submission #3026319

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Source Code Expand

#include<iostream>
#include<algorithm>
using namespace std;

int main(){
	int n;
	int a,ba;
	int cnt = 1,ans = 0;
	cin >> n;
	for(int i=0;i<n;i++){
		cin >> a;
		if(i == 0){
			ba = a;
		}else{
			if(ba == a){
				cnt++;
			}else{
				ans += cnt / 2;
				cnt = 1;
			}
			ba = a;
		}
	}
	if(cnt != 1) ans += cnt / 2;
	
	cout << ans << endl;
	return 0;
}

Submission Info

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