Caesar encryption and decryption
# includevoid main () {char M [100]; char C [100]; int p; printf ("Please choose 0: encryption, 1: decryption\ n"); scanf ("% d", & p); printf ("Please enter plaintext M (please do not enter blank string)\ n"); scanf ("% s", M); int iArt K; printf ("Please enter key K (be careful not to enter blank string)\ n") Scanf ("% d", & K); if (pairwise 0) {for (item0 +) if (M [I] > = 'Aging & M [I] =' Aging & M [I] = 'Aging & M [I]]
