1 files changed, 110 insertions, 0 deletions

diff --git a/Sem. 14/task5.cpp b/Sem. 14/task5.cpp
new file mode 100644
index 0000000..9ea3923
--- /dev/null
+++ b/Sem. 14/task5.cpp
@@ -0,0 +1,110 @@
+#include <iostream>
+using namespace std;
+
+
+const int MAX_LEN = 1024;
+
+
+int contains(const char* str, const char* searched) 
+{
+	int len1 = strlen(str);
+	int len2 = strlen(searched);
+	for (int i = 0; i < len1 - len2 + 1; i++)
+	{
+		bool found = true;
+		for (int j = 0; j < len2; j++)
+		{
+			if (searched[j] != str[i + j])
+			{
+				found = false;
+				break;
+			}
+		}
+		if (found)
+			return i;
+	}
+	return -1;
+}
+bool containsOnlyWhiteSpaces(const char* str)
+{
+	while (*str != '\0')
+	{
+		if (*str != ' ')
+			return false;
+		str++;
+	}
+	return true;
+}
+void makeSpaces(char* str, int startIndex, int spacesCount)
+{
+	for (int i = startIndex; i < startIndex + spacesCount; i++)
+		str[i] = ' ';
+}
+bool hasSameWords(const char* sentence1, const char* sentence2)
+{
+	int len1 = strlen(sentence1);
+	int len2 = strlen(sentence2);
+
+	char* s1 = new char[len1 + 1];
+	char* s2 = new char[len2 + 1];
+	
+	char* s1Original = s1;// we change s1. So we could delete the whole array
+
+	strcpy(s1, sentence1);
+	strcpy(s2, sentence2);
+
+
+	for (int i = 0; i <= len1; i++)
+	{
+		if  (s1[i] != ' ' &&s1[i] != '\0' )
+			continue;
+		//we are here if we found a space (or a \0 which means it's the last word).
+
+
+		//if the space is at the begining, there is not a word before it. So we just remove it.
+		if (i == 0)
+		{
+			s1 += 1;
+			len1--;
+			i = -1;
+			continue;
+		}
+
+		char* currentWord = new char[i + 1];
+
+		s1[i] = '\0';
+		strcpy(currentWord, s1);
+
+		if (i != len1) //if it's not the last word (because after the last word there is an '\0').
+			s1[i] = ' ';
+		
+		int res = contains(s2, currentWord);
+		if (res == -1)
+			return false;
+
+		//we make the matched word as whitespaces.
+		makeSpaces(s1, 0, i);
+		makeSpaces(s2, res, i);
+
+		//we move the pointer to continue with the sentense.
+		s1 += i;
+		len1 -= i;
+
+		i = -1;
+		delete[] currentWord;
+	}
+
+	bool res = containsOnlyWhiteSpaces(s1Original) && containsOnlyWhiteSpaces(s2);
+	delete[] s1Original, s2;
+	return res;
+}
+int main()
+{
+	char sentence1[MAX_LEN];
+	char sentence2[MAX_LEN];
+
+	//cin.getline(sentence1, MAX_LEN);
+	//cin.getline(sentence2, MAX_LEN);
+
+	cout << hasSameWords("hello friends bye enemy", "bye friends  hello enemy");
+}
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