How to reverse a String without using C functions ?
Answer Posted / manoj
#include <stdio.h>
void reverse(char s[])
{
int low; /* index in the lower half of the array s */
int high; /* index in the upper half of the array s */
char c; /* for holding intermediate strings */
int len; /* the length of the string s */
/* Initialize len to the length of the string */
for (len=0;s[len]!='\0';len++) ;
/* Let low increase and high decrease until they meet */
low = 0;
high = len-1;
while (low<high) {
/* Switch the values of s[low] and s[high] */
c = s[low];
s[low] = s[high];
s[high] = c;
low++;
high--;
}
}
main()
{
int c;
char line[80]; /* array to hold a line of input */
int i; /* to use as an index in the array */
c = getchar();
i = 0;
/* Read input until EOF (CTRL-z) */
while (c != EOF) {
if (c != '\n') {
/* Put anything else but newline in the array */
line[i] = c;
i++;
}
if (c == '\n') {
/* For a newline, reverse and print the line and start new line */
line[i] = '\0';
reverse(line);
printf("%s",line);
putchar(c);
i = 0;
}
c = getchar();
}
}
| Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
How can you relate the function with the structure? Explain with an appropriate example.
How can I Create a C program in splitting set of characters to specific subsets. Example: INPUT SET OF CHARACTERS: Therefore, my dear brothers and sisters, stand firm. Let nothing move you. Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain. SPLIT INTO HOW MANY CHARACTERS PER SUBSETS: 10 OUTPUT: Therefore, my dear b rothers an d sisters, stand fir m. Let not hing move you. Alway s give you rselves fu lly to the work of t he Lord, b ecause you know that your labo r in the L ord is not in vain.
What is the difference between proc means and proc tabulate ? explain with a simple example when you have to use means or tabulate?
Write a routine to implement the polymarker function
How do you verify if the two sentences/phrases input is an anagram using predefined functions in string.h and by using arrays?
#include
Design an implement of the inputs functions for event mode
What is full form of PEPSI
write a simple calculator c program to perform addition, subtraction, mul and div.
how to test pierrot divisor
To Write a C program to remove the repeated characters in the entered expression or in entered characters(i.e) removing duplicates. String contains only lowercase characters ['a'-'z']
Set up procedure for generating a wire frame display of a polyhedron with the hidden edges of the object drawn with dashed lines
What is data _null_? ,Explain with code when u need to use it in data step programming ?
how to create a 3x3 two dimensional array that will give you the sums on the left and bottom columns
can you use proc sql to manpulate a data set or would u prefer to use proc report ? if so why ? make up an example and explain in detail