Answer / sky

char str[]="ABCD";
len = strlen(str);
for (i=1; i < len; ++i )
{
j=i;
for( count=0; count < len; ++count, ++j )
{
if(j == len )
j=0;
printf("%c", (*str)+j);
}

printf("\n");
}

Answer / rajan

Circular queue

A banker has a seif with a cipher. Not to forget the cipher, he wants to write it coded as following: each digit to be replaced with the difference of 9 with the current digit. The banker chose a cipher. Decipher it knowing the cipher starts with a digit different than 9. I need to write a program that takes the cipher from the keyboard and prints the new cipher. I thought of the following: Take the input from the keyboard and put it into a string or an array. Go through the object with a for and for each digit other than the first, substract it from 9 and add it to another variable. Print the new variable. Theoretically I thought of it but I don't know much C. Could you give me any kind of hint, whether I am on the right track or not?

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