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Here's what I ended up doing:


for(w=0;w<7;w++)
{
for(j=0;j<5;j++)
{
if(inw[w] == nat[j])
{
i=j;

Would it be better to use

scanf("%s", in);

to input the encryption key?
I need to limit the key to five characters, so is that possible to do with scanf?

Ok I'll try that. Thanks!

So I'm a total noob to C programming and I've got no idea how to make this program. I've started on it, but I'm still completely lost. It's an entry level C programming class that I'm in so it must...