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- #include <iostream>
- #include <fstream>
- using namespace std;
- int main()
- {
- ifstream fd("duomenys.txt");
- float n;
- float svoris,skanumas,vid,suma=0;
- int k=0;
- fd>>n;
- for(int i=1;i<=n;i++)
- {
- fd>>svoris;
- fd>>skanumas;
- if(svoris>1&&skanumas==1)
- {
- suma=suma+svoris;
- k++;
- }
- }
- vid=suma/n;
- cout<<k<<endl<<suma<<endl<<vid;
- return 0;
- }
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