score:2
Accepted answer
you can try to groupby the country, swiftcode
swiftcodeinfo.groupby(l => new { l.country, l.swiftcode })
.select(g => new branchcode {
country = g.key.country,
swiftcode = g.key.swiftcode,
branchcodes = g.select(i => i.branchcode).tolist()
});
Source: stackoverflow.com
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