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Number theory involves properties and relationships of numbers, primarily positive integers.
1
vote
Greatest Common Divisor
T-SQL, 147 Bytes
SQL Fiddle
MS SQL Server 2014 Schema Setup:
CREATE PROC G @ INT,@B INT,@C INT OUT AS BEGIN IF @<@B EXEC G @B,@,@C OUT ELSE IF @B>0 BEGIN SELECT @=@%@B EXEC G @B,@,@C OUT END ELSE SET …
1
vote
Greatest Common Divisor
Oracle SQL 11.2, 108 Bytes
CREATE PROCEDURE G(A INT,B INT,C OUT INT)AS BEGIN IF A>0 THEN G(LEAST(A,B),ABS(A-B),C);ELSE C:=B;END IF;END;
Testing:
CREATE FUNCTION testHelper(A INT,B INT) RETURN INT
…