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- #include<bits/stdc++.h>
- using namespace std;
- int res[100001000];
- int main()
- {
- int n[10100],n1[10100];
- int t,p,k,i,j;
- cin >> t;
- while(t--)
- {
- cin >> p;
- for(i=0; i<p+1; i++)
- {
- cin >> n[i];
- }
- for(i=0; i<p+1; i++)
- {
- cin >> n1[i];
- }
- for(i=0,k=p*2; i<p+1; i++)
- {
- for(j=0; j<p+1; j++,k--)
- {
- res[k] +=n[i]*n1[j];
- }
- k=p*2-i-1;
- }
- for(k=p*2; k>=0; k--)
- {
- if(k!=0)
- cout << res[k] << " " ;
- else
- cout << res[k] << endl;
- }
- memset(res,0,sizeof(res));
- }
- return 0 ;
- }
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