Reverse The Words In A String | C Programming Example

[durkaperiasamy]

Im from India i found ur video's very late...boz semester (final)exams are near but after final i promise i will complete ur c programming playlist....❤🎉😊

[warplanner]

Use strtok() to strcpy() words into an array of strings. Then traverse the array in reverse order. Advantage: easier to implement. (Specious advantage). Disadvantage: cannot process an infinite string.

[mohamedelamine]

hey sir ! sorry if it is dumb question but i'm new to programming, so when you said we gonna check whether we reached
the end of the string or not, what if the string doesn't end with a space or dot, so the last word in string will not be detected per eg: "good morning sir" so the word "sir" will not be detected unless the string is like that "good morning sir." or that "good morning sir "

[madhubabu]

The occurences or frequency of words in a string. Please do it.

[Awesomeman]

What if there is more than one whitespace between every new word?

[justcurious]

Great method :
// an alternative method without using a temporary array
// by keeping track of the first and the last index for each word
void reverse_words3(char *string){
bool is_word = false;
int first_index = 0, last_index = 0;
for(int i = 0; string[i]; i++){
if(string[i] != ' ' && string[i] != '.'){
if(!is_word){
first_index = i;
is_word = true;
}
}
else if ((string[i] == ' ' || string[i] == '.')){
if(is_word){
last_index = i-1;
is_word = false;
while(first_index < last_index){
char temp = string[first_index];
string[first_index] = string[last_index];
string[last_index] = temp;
++first_index;
--last_index;
}
}
}
}
}

[mostafamoradi]

it could be better if the reverse function which has been defined could reverse the place of the words too.... i mean like : yaw eht si siht... anyway. that was good. tnx