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solutions/cw2/fib.while
author Christian Urban <christian.urban@kcl.ac.uk>
Tue, 19 Sep 2023 09:54:41 +0100
changeset 920 7af2eea19646
parent 894 02ef5c3abc51
permissions -rw-r--r--
updated
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
920
7af2eea19646 updated
Christian Urban <christian.urban@kcl.ac.uk>
parents: 894
diff changeset 
     1
 
write "Fib: ";
864
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
     2
 
read n;
920
7af2eea19646 updated
Christian Urban <christian.urban@kcl.ac.uk>
parents: 894
diff changeset 
     3
 
minus1 := 0;
7af2eea19646 updated
Christian Urban <christian.urban@kcl.ac.uk>
parents: 894
diff changeset 
     4
 
minus2 := 1;
864
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
     5
 
while n > 0 do {
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
     6
 
       temp := minus2;
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
     7
 
       minus2 := minus1 + minus2;
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
     8
 
       minus1 := temp;
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
     9
 
       n := n - 1
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
    10
 
};
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
    11
 
write "Result: ";
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
    12
 
write minus2
Christian Urban <christian.urban@kcl.ac.uk>
parents:
diff changeset 
    13
 














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