[cpp] collegelife2
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- #include <iostream>
- using namespace std;
- int main() {
- // your code goes here
- int t; cin>>t;
- while(t--){
- long s; cin>>s;
- long q[s+1];
- long ans=0;
- for(int i=1;i<=s;i++)
- cin>>q[i];
- for(int i=1;i<=s;i++){
- long n; cin>>n;
- long e[n];
- int sume=0;
- for(int j=0;j<n;j++){
- cin>>e[j];
- sume+=e[j];
- }
- sume-=((n-1)*q[i]);
- ans+=sume;
- }
- cout<<ans<<'\n';
- }
- return 0;
- }
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