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Data update

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Ingy döt Net 2026-02-01 16:33:20 -08:00
parent 5150844a7d
commit 4bb20c9b71
7735 changed files with 38060 additions and 199180 deletions
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30
Task/Caesar-cipher/C/caesar-cipher.c
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@ -9,7 +9,7 @@
void rot(int c, char *str)
{
int l = strlen(str);
int l = strlen(str);
const char* alpha_low = "abcdefghijklmnopqrstuvwxyz";
@ -21,32 +21,32 @@ void rot(int c, char *str)
int i; /* loop var */
for (i = 0; i < l; i++) /* for each letter in string */
{
if( 0 == isalpha(str[i]) ) continue; /* not alphabet character */
for (i = 0; i < l; i++) /* for each letter in string */
{
if( 0 == isalpha(str[i]) ) continue; /* not alphabet character */
idx = (int) (tolower(str[i]) - 'a') + c) % 26; /* compute index */
if( isupper(str[i]) )
if( isupper(str[i]) )
subst = alpha_high[idx];
else
subst = alpha_low[idx];
str[i] = subst;
}
}
}
int main(int argc, char** argv)
{
char str[] = "This is a top secret text message!";
printf("Original: %s\n", str);
caesar(str);
printf("Encrypted: %s\n", str);
decaesar(str);
printf("Decrypted: %s\n", str);
return 0;
char str[] = "This is a top secret text message!";
printf("Original: %s\n", str);
caesar(str);
printf("Encrypted: %s\n", str);
decaesar(str);
printf("Decrypted: %s\n", str);
return 0;
}