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From: Rodrick Brown <rodrick.brown@gmail.com>
Date: Sat, 12 Jul 2014 22:05:34 -0400
Subject: codingbat question broken?
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I'm working on the following problem set from codingbat.com

http://codingbat.com/prob/p107863

Given 3 int values, a b c, return their sum. However, if one of the values
is 13 then it does not count towards the sum and values to its right do not
count. So for example, if b is 13, then both b and c do not count.

lucky_sum(1, 2, 3) =E2=86=92 6
lucky_sum(1, 2, 13) =E2=86=92 3
lucky_sum(1, 13, 3) =E2=86=92 1

The solution I came up with was -

def lucky_sum(a, b, c):
  t =3D 0
  for ints in (a, b, c):
    if a =3D=3D 13:
      t =3D b + c
    elif b =3D=3D 13:
      t =3D a
    elif c =3D=3D 13:
      t =3D a + b
    else:
      t =3D a + b + c
  return t

However the following tests fail

lucky_sum(13, 2, 3) =E2=86=92 05X     lucky_sum(13, 2, 13) =E2=86=92 015X  =
  lucky_sum(13,
13, 2) =E2=86=92 015X

Can anyone show me an example where all test are success?

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<div dir=3D"ltr"><div><span style=3D"color:rgb(0,0,0);font-family:verdana,a=
rial,helvetica,sans-serif">I&#39;m working on the following problem set fro=
m <a href=3D"http://codingbat.com">codingbat.com</a>=C2=A0</span></div><div=
><font color=3D"#000000" face=3D"verdana, arial, helvetica, sans-serif"><br=
>

</font></div><div><font color=3D"#000000" face=3D"verdana, arial, helvetica=
, sans-serif"><a href=3D"http://codingbat.com/prob/p107863">http://codingba=
t.com/prob/p107863</a></font><br></div><div><font color=3D"#000000" face=3D=
"verdana, arial, helvetica, sans-serif"><br>

</font></div><span style=3D"color:rgb(0,0,0);font-family:verdana,arial,helv=
etica,sans-serif">Given 3 int values, a b c, return their sum. However, if =
one of the values is 13 then it does not count towards the sum and values t=
o its right do not count. So for example, if b is 13, then both b and c do =
not count.=C2=A0</span><br style=3D"color:rgb(0,0,0);font-family:verdana,ar=
ial,helvetica,sans-serif">

<br style=3D"color:rgb(0,0,0);font-family:verdana,arial,helvetica,sans-seri=
f"><span style=3D"color:rgb(0,0,0);font-family:verdana,arial,helvetica,sans=
-serif">lucky_sum(1, 2, 3) =E2=86=92 6</span><br style=3D"color:rgb(0,0,0);=
font-family:verdana,arial,helvetica,sans-serif">

<span style=3D"color:rgb(0,0,0);font-family:verdana,arial,helvetica,sans-se=
rif">lucky_sum(1, 2, 13) =E2=86=92 3</span><br style=3D"color:rgb(0,0,0);fo=
nt-family:verdana,arial,helvetica,sans-serif"><span style=3D"color:rgb(0,0,=
0);font-family:verdana,arial,helvetica,sans-serif">lucky_sum(1, 13, 3) =E2=
=86=92 1</span><br>

<div><span style=3D"color:rgb(0,0,0);font-family:verdana,arial,helvetica,sa=
ns-serif"><br></span></div><div><span style=3D"color:rgb(0,0,0);font-family=
:verdana,arial,helvetica,sans-serif">The solution I came up with was -=C2=
=A0</span></div>

<div><span style=3D"color:rgb(0,0,0);font-family:verdana,arial,helvetica,sa=
ns-serif"><br></span></div><div><div style><font color=3D"#000000" face=3D"=
verdana, arial, helvetica, sans-serif">def lucky_sum(a, b, c):</font></div>=
<div style>

<font color=3D"#000000" face=3D"verdana, arial, helvetica, sans-serif">=C2=
=A0 t =3D 0</font></div><div style><font color=3D"#000000" face=3D"verdana,=
 arial, helvetica, sans-serif">=C2=A0 for ints in (a, b, c):</font></div><d=
iv style><font color=3D"#000000" face=3D"verdana, arial, helvetica, sans-se=
rif">=C2=A0 =C2=A0 if a =3D=3D 13:</font></div>

<div style><font color=3D"#000000" face=3D"verdana, arial, helvetica, sans-=
serif">=C2=A0 =C2=A0 =C2=A0 t =3D b + c</font></div><div style><font color=
=3D"#000000" face=3D"verdana, arial, helvetica, sans-serif">=C2=A0 =C2=A0 e=
lif b =3D=3D 13:</font></div><div style>

<font color=3D"#000000" face=3D"verdana, arial, helvetica, sans-serif">=C2=
=A0 =C2=A0 =C2=A0 t =3D a=C2=A0</font></div><div style><font color=3D"#0000=
00" face=3D"verdana, arial, helvetica, sans-serif">=C2=A0 =C2=A0 elif c =3D=
=3D 13:=C2=A0</font></div><div style><font color=3D"#000000" face=3D"verdan=
a, arial, helvetica, sans-serif">=C2=A0 =C2=A0 =C2=A0 t =3D a + b</font></d=
iv>

<div style><font color=3D"#000000" face=3D"verdana, arial, helvetica, sans-=
serif">=C2=A0 =C2=A0 else:</font></div><div style><font color=3D"#000000" f=
ace=3D"verdana, arial, helvetica, sans-serif">=C2=A0 =C2=A0 =C2=A0 t =3D a =
+ b + c</font></div><div style>

<font color=3D"#000000" face=3D"verdana, arial, helvetica, sans-serif">=C2=
=A0 return t=C2=A0</font></div></div><div style><font color=3D"#000000" fac=
e=3D"verdana, arial, helvetica, sans-serif"><br></font></div><div style>How=
ever the following tests fail=C2=A0</div>

<div style><br></div><div style><table border=3D"2" style=3D"color:rgb(0,0,=
0);font-family:verdana,arial,helvetica,sans-serif"><tbody><tr><td>lucky_sum=
(13, 2, 3) =E2=86=92 0</td><td>5</td><td>X</td><td bgcolor=3D"red">=C2=A0=
=C2=A0=C2=A0=C2=A0</td></tr><tr>

<td>lucky_sum(13, 2, 13) =E2=86=92 0</td><td>15</td><td>X</td><td bgcolor=
=3D"red">=C2=A0=C2=A0=C2=A0=C2=A0</td></tr><tr><td>lucky_sum(13, 13, 2) =E2=
=86=92 0</td><td>15</td><td>X</td><td bgcolor=3D"red">=C2=A0 =C2=A0<br></td=
></tr></tbody></table><br></div><div style>Can anyone show me an example wh=
ere all test are success?=C2=A0</div>

<div><span style=3D"color:rgb(0,0,0);font-family:verdana,arial,helvetica,sa=
ns-serif"><br></span></div></div>

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