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teste

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Jan 21st, 2019
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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main(){
  6.  
  7. int n,m,k,ai,ho[100001],mu[100001];
  8. while(cin>>n>>m>>k){
  9. memset(mu,0,sizeof mu);
  10. for(int i = 0; i < n; i++){
  11. cin>>ho[i];
  12. }
  13. for(int i = 0; i < m; i++){
  14. cin>>ai;
  15. mu[ai%k]++;
  16. }
  17.  
  18. int ans = 0;
  19. for(int i = 0; i < n; i++){
  20. ans+=mu[(k-(ho[i]%k))%k];
  21. }
  22. cout<<ans<<endl;
  23. }
  24. return 0;
  25. }
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