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- #include <iostream>
- using namespace std;
- int a[1001];
- int VerifPare(int a[], int st, int dr)
- {
- int mij,s=0;
- if(dr==st)
- {
- if(a[st] % 2 == 0)
- {
- return a[st];
- }
- return 0;
- }
- if(dr-st == 1)
- {
- if(a[st]%2==0 && a[dr]%2==0)
- {
- return a[st]+a[dr];
- }
- if(a[st]%2==0 && a[dr]%2==1)
- {
- return a[st];
- }
- if(a[dr]%2==0 && a[st]%2==1)
- {
- return a[dr];
- }
- }
- mij=(st+dr)/2;
- return VerifPare(a,st,mij)+VerifPare(a,mij+1,dr);
- }
- int main()
- {
- int n;
- cin>>n;
- for( int i=1; i<=n; i++)
- {
- cin >> a[i];
- }
- cout<<VerifPare(a,1,n);
- return 0;
- }
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