added alternative solution

5585af98 · pm3g19 · f10f8003 · 5585af98
Commit 5585af98 authored May 07, 2021 by pm3g19
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pr7.cql pr7.cql +9 -0

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--- a/pr7.cql
+++ b/pr7.cql
+.in
+F:3,
+G:3
+
+.out
+F x G;
+filter (\(r) -> not(isEmpty(r[2])) and not(isEmpty(r[3])) and [r[2], r[3]] == [r[4], r[5]]);
+#alternatively: filter (\(r) -> not(isEmpty(r[2])) and not(isEmpty(r[3])) and r[2]==r[4] and r[3]==r[5]);
+map (\(r) -> r[1,6]);
\ No newline at end of file