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29.cpp
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36 lines (33 loc) · 740 Bytes
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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t;
cin>>t;
while(t--){
int n;
cin>>n;
int arr[n];
for(int i=0;i<n;i++) cin>>arr[i];
for(int i=0;i<n;i++) arr[i]%=2;
int res=0;
for(int i=0;i<n;){
int z=0;
int o=0;
while(arr[i]==0 and i<n){
z++;
i++;
}
while(arr[i]==1 and i<n){
o++;
i++;
}
if(z>=2) res+=z-1;
if(o>=2) res+=o-1;
}
cout<<res<<endl;
}
return 0;
}