#include #include main(int argc,char *argv[]) { char *passwd; char encr[10]; int i,len; passwd=argv[1]; len=strlen(passwd); for(i=0;passwd[i];i++) encr[i]= (i==0) ? (passwd[i]+passwd[i+1]*len+len)%90+32 : (passwd[i]+encr[i-1]+i)%90+32; encr[i]='\0'; printf("%s\n",passwd); printf("%s\n",encr); }