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#include <iostream>
#include <cstring>
using namespace std;
const int MAXLEN = 1024;
//creates a matrix of the words in the sentence.
int fillWords(const char* str, char words[MAXLEN][MAXLEN])
{
int len = strlen(str);
int currentWordCursorInMatrix = 0;
int count = 0 ; //also the index of the row in the matrix.
for(int i = 0; i < len; i++)
{
if(str[i] == ' ') // the current word ends here.
{
if(currentWordCursorInMatrix != 0) // check if we have writen at least one symbol in the current word.
{
words[count][currentWordCursorInMatrix] = '\0';
count++;
currentWordCursorInMatrix = 0;
}
}
else
{
words[count][currentWordCursorInMatrix] = str[i]; // we write the symbol in the current word.
currentWordCursorInMatrix++;
}
}
if(str[len-1] != ' ')
count++; //the last word;
return count;
}
void createReversedSentence(char words[MAXLEN][MAXLEN], int wordsCount, char* newSentence)
{
for (int j = wordsCount - 1; j >= 0 ; j--)
{
strcat(newSentence, words[j]);
if(j != 0)
strcat(newSentence, " "); //the space between the words
}
}
int main()
{
const char* str = "How are you friends. I am fine!";
char words[MAXLEN][MAXLEN];
int wordsCount = fillWords(str, words);
char* newSentense = new char[strlen(str)];
createReversedSentence(words, wordsCount, newSentense);
cout << newSentense << endl;
delete[] newSentense;
return 0;
}
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