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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int a, b, c, d, x, y, z, i=0;
  6.     cin>>a>>b>>c>>d>>y>>z;
  7.     while (cin>>x) {
  8.     if(a*x+b*z+c*y==d) { i++;}
  9.     y=z; z=x;
  10. }
  11.  cout<<i;
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 16064KB
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https://ideone.com/fCLAWK
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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