score:7
Accepted answer
from p in names
group p by p.name into g
order by g.key
select new { name = g.key, amount = g.sum(o => o.amount) }
score:8
var personmoney = names.groupby(x=>x.name)
.select(x=>new {name = x.key, allmoney = x.sum(y=>y.money)})
.orderbydescending(x=>x.allmoney).tolist();
Source: stackoverflow.com
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