INTERVIEW QUESTIONS C STRINGS IN C DETAILS

Question: If a string variable contain "i am a good boy" then how a c program will print "boy good a am i".?

Answer: The string reverse can be done by using the string reverse function.
That is the "strrev" function.

The string reverse can be done by using the string reverse function.
That is the "strrev" function.
Source: CoolInterview.com

void str_reve_word(char* str)
{
int length = strlen(str);
int i=0;
while(length>=0)
{
if(str[length]!=' ')
{
length--;
continue;
}
for(i=length+1;((str[i]!=' ')&&(str[i]!=' Source: CoolInterview.com

#include <stdio.h>
#include <ctype.h>
#include <string.h>


int main(int argc, char *argv[])
{
char *mesg = " I am a good boy. ";
char *startPtr, *endPtr, *tmpPtr;
endPtr = startPtr = mesg+strlen(mesg)-1;
while(startPtr > mesg) {
if(isgraph(*startPtr)) {
startPtr--;
}
else
{
tmpPtr = startPtr+1;
while(tmpPtr <= endPtr)
{
putchar((int)*tmpPtr);
tmpPtr++;
}
putchar((int)*startPtr);
startPtr--;
endPtr = startPtr;
}
}
tmpPtr = startPtr;
while(tmpPtr <= endPtr)
{
putchar((int)*tmpPtr);
tmpPtr++;
}
return 0;
}
Source: CoolInterview.com

void main()
{
int l[100],n;
char str[5][20];
printf("How many strings")
scanf("%d",&n);
//read the string//
for(i=0;i<n;i++)
{
printf("Enter the %d string",i+1);
fflush(stdin);
scanf("%s",str[i]);
}
//calculate the length of each string//
for(i=0;i<n;i++)
{
l[i]=strlen(str[i]);
}
for(i=n;i>=0;i--)
{
for(j=0;j<l[i];j++)
{
printf("%s",str[i][j]));

getch();
}
} Source: CoolInterview.com

#include<iostream>

using namespace std;


char * revCopy(const char* );


int main(){

char *abc = "i am a good boy";

cout<<"the retruned copy is "<<revCopy(abc);

}


char * revCopy(const char *str){


char * abc = new char[strlen(str) + 1];
int iAbc = 0;

//strcpy(abc,str);

for(int i=strlen(str) - 1;i >= -1;i--){

if(str[i] == ' ' || i == -1 ){

for(int j = i+1;j < strlen(str) && str[j] != ' ';j++){

abc[iAbc++] = str[j];
}

abc[iAbc++] = ' ';
}
}

abc[iAbc] = ' Source: CoolInterview.com

This is nothing but the string reversal.

Declare a variable x as string .
use " strrev() "
function to get the result U like for any string .

Note: You have to declare
#include<string.h>
at the begining of the program. Source: CoolInterview.com

void main()
{
char ch[8][20];
printf("Enter a string:and $for end of the string ");
for (int i = 0; i < 8; i++)
{
scanf("%s", ch[i]);
if(ch[i][0] == '$')
break;
}

for (i--; i >= 0; i--)
printf("%s ", ch[i]);

} Source: CoolInterview.com

#include <stdio.h>
#include <string.h>
int main()
{
char in_str[16] = "I am a good boy";
char out_str[16] = {0};
char current_letter = 0;
int str_len = 0;
int in_str_pos = 0;
int temp_in_str_pos = 0;
int out_str_pos = 0;
int letter_count = 0;

/* calculate the string len */
str_len = strlen(in_str);
in_str_pos = str_len-1;
out_str_pos = 0;

while (in_str_pos >= 0)
{
if(in_str[in_str_pos] != ' ') /* If the letter is not a space */
{
letter_count++;
in_str_pos--;
}
else /* If the letter is a space */
{
/* put the word in correct order to the output string */
temp_in_str_pos = in_str_pos+1;
while (letter_count)
{
out_str[out_str_pos] = in_str[temp_in_str_pos];
letter_count--;
out_str_pos++;
temp_in_str_pos++;
}
/* Add space to the output string */
out_str[out_str_pos] = ' ';
out_str_pos++;
in_str_pos--;
}
}
/* For last word - in this case "I" */
temp_in_str_pos = in_str_pos+1;
while (letter_count)
{
out_str[out_str_pos] = in_str[temp_in_str_pos];
letter_count--;
out_str_pos++;
temp_in_str_pos++;
}

/* put "end of string" to output string */
out_str[out_str_pos] = ' Source: CoolInterview.com

using strrev() function we can reversed that string
#include<stdio.h>
#include<string.h>
void main()
{
char a[20];
printf("
Enter the string:");
scanf("%s",&a);
strrev=strrev(a);
printf("
The reversed string is:%s,sttrrev);
}
Source: CoolInterview.com

char res_str1[10][10];
char in_str[100];
char *tmp_str;
int len,i;

strcpy(in_str,"i am a good boy");
printf("Input string:- %s
", in_str);

tmp_str = strtok(in_str, " ");
i = 0;
while(tmp_str != NULL) {
strcpy(res_str1[i],tmp_str);
tmp_str = strtok(NULL, " ");
i++;
}

printf("Reversed String:- ");
i--;
while (i >= 0) {
printf("%s ", res_str1[i]);
i--;
} Source: CoolInterview.com

If you have the better answer, then send it to us. We will display your answer after the approval.

Rules to Post Answers in CoolInterview.com:-

• There should not be any Spelling Mistakes.
• There should not be any Gramatical Errors.
• Answers must not contain any bad words.
• Answers should not be the repeat of same answer, already approved.
• Answer should be complete in itself.

Name :*
Email Id :*
Answer :*
Verification Code	Not readable? Load New Code
Enter the above shown code: *
	Inform me about updated answers to this question