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- #include <iostream>
- using namespace std;
- int main(){
- int n;
- cin>>n;
- int queue[3];
- cin>>queue[0]>>queue[1]>>queue[2];
- int ans=0;
- int q2=0,q3=0,q6=0;
- for(int i=0;i<n-3;i++){
- if(queue[0]%6==0){
- q6++;
- }
- else if(queue[0]%3==0){
- q3++;
- }
- else if(queue[0]%2==0){
- q2++;
- }
- queue[0]=queue[1];
- queue[1]=queue[2];
- cin>>queue[2];
- ans+=q6;
- if(queue[2]%6==0){
- ans+=i+1-q6;
- }
- else if(queue[2]%3==0){
- ans+=q2;
- }
- else if(queue[2]%2==0){
- ans+=q3;
- }
- }
- cout<<ans;
- }
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