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Lecture-06.2.1

# Lecture-06.2.1 - Week 6.2.1 CSE 1540.03 February 8 2012...

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CSE 1540.03 Week 6.2.1 February 8, 2012 Arrays Problem: print three variables a, b, c in decreasing order if (a .GT. b) then if (c .GT. a) then print*, c, a, b c > a, a > b else if (b .GT. c) then print*, a, b, c a > b, c a, b > c else print*, a, c, b a > b, c a, b c end if end if else if (c .GT. b) then print*, c, b, a a b, c > b else if (a .GT. c) then print*, b, a, c a b, c b, a > c else print*, b, c, a a b, c b, a c end if end if end if Better approach: if (a .LT. b) then temp = a a = b b = temp end if know a b if (b .LT. c) then temp = b b = c c = temp end if know b c smallest in c if (a .LT. b) then temp = a a = b b = temp end if second smallest in b, largest in a print*, a, b, c Pattern: if (x .LT. y) then Bubble Sort temp = x x = y y = temp end if Bubble Sort integer n, i, j real ar(6), temp n = 6 do j = n-1, 1, -1 do i = 1, j if (ar(i) .gt. ar(i+1)) then temp = ar(i) ar(i) = ar(i+1) ar(i+1) = temp end if CSE 1540 Week 6.2.1 – February 8, 2012 page 1 of 2

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Lecture-06.2.1 - Week 6.2.1 CSE 1540.03 February 8 2012...

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