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- #include <iostream>
- using namespace std;
- int main(){
- int n=0;
- cin>>n;
- int a1=0;
- int a2=0;
- int a7=0;
- int a14=0;
- for(int i=0;i<n;i++){
- int a=0;
- cin>>a;
- if(a%14==0){
- a14++;
- }
- else{
- if(a%7==0){
- a7++;
- }
- else{
- if(a%2==0){
- a2++;
- }
- else{
- a1++;
- }
- }
- }
- }
- int k=0;
- k=(n*(n-1)/2)-(a14*(a14-1)/2)-(a14*a7)-(a14*a2)-(a14*a1)-(a7*a2);
- cout<<k;
- }
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