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Task/Twelve-statements/Phix/twelve-statements.phix

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+string s    -- (eg "101101100010")
+integer t   -- scratch
+
+function s1() return length(s)=12 end function
+function s2() t=0 for i=7 to 12 do t+=s[i]='1' end for return t=3 end function
+function s3() t=0 for i=2 to 12 by 2 do t+=s[i]='1' end for return t=2 end function
+function s4() return s[5]='0' or (s[6]='1' and s[7]='1') end function
+function s5() return s[2]='0' and s[3]='0' and s[4]='0' end function
+function s6() t=0 for i=1 to 12 by 2 do t+=s[i]='1' end for return t=4 end function
+function s7() return s[2]!=s[3] end function
+function s8() return s[7]='0' or (s[5]='1' and s[6]='1') end function
+function s9() t=0 for i=1 to 6 do t+=s[i]='1' end for return t=3 end function
+function s10() return s[11]='1' and s[12]='1' end function
+function s11() t=0 for i=7 to 9 do t+=s[i]='1' end for return t=1 end function
+function s12() t=0 for i=1 to 11 do t+=s[i]='1' end for return t=4 end function
+
+sequence r = repeat(0,12)
+for b=1 to 12 do
+    r[b] = routine_id(sprintf("s%d",b))
+end for
+for i=0 to power(2,12)-1 do
+    s = sprintf("%012b",i)
+    for b=1 to 12 do
+        if call_func(r[b],{})!=(s[b]='1') then exit end if
+        if b=12 then ?s end if
+    end for
+end for