diff --git a/duplicateArray.c b/duplicateArray.c
new file mode 100644
index 0000000..29ecdf0
--- /dev/null
+++ b/duplicateArray.c
@@ -0,0 +1,54 @@
+/* Yael Kelmer.
+ This code asks the user to input an array with duplicate integers. The code then removes the duplicates and prints the new array.*/
+
+#include <stdio.h>
+
+int main ()
+{
+	printf ("Please insert the length of the array (how many integers you want in your list of integers)\n");
+	int lengthArray;
+	scanf ("%d", &lengthArray);
+	printf ("Please insert the integers you want to be in the array (remember it has to match the length of the array). Insert duplicates of some integers and I will return an array without those duplicates. \n");
+
+	int userArray [lengthArray];
+
+	int i;
+	int userInput;
+	for (i= 0; i < lengthArray; i++) {
+		scanf ("%d", &userInput);
+		userArray [i] = userInput;
+	}
+	
+
+	int newArray [lengthArray];
+	int j;
+	int newLength = 0;
+	for (i = 0; i < lengthArray; i++) {
+		int check = 0;
+		for (j = 0; j < newLength; j++) {
+			if (userArray [i] == newArray [j]) {
+				check = 1;
+				break;
+			}	
+		}
+		if (check == 0) {
+			newArray [newLength] = userArray [i];
+			newLength++;
+		}
+
+	}
+	
+	printf ("This is your original array: [ ");
+	for (i = 0; i < lengthArray; i++) {
+		printf ("%d ", userArray [i]);
+	}
+	printf ("]\n");
+
+	printf ("This is your new array: [ ");
+	for (i = 0; i < newLength; i++) {
+		printf ("%d ", newArray [i]);
+	}
+	printf ("]\n");
+
+
+}
diff --git a/hangman.c b/hangman.c
new file mode 100644
index 0000000..384ac82
--- /dev/null
+++ b/hangman.c
@@ -0,0 +1,50 @@
+/* Yael Kelmer.
+ This code allows the player to play a game of hangman.*/
+
+#include <stdio.h>
+#include <string.h>
+
+int main()
+{
+	char hangmanWord [7] = "peanut";
+
+	char userGuess;
+	int i;
+	char fillArray [7] = "______";
+	char incorrectGuesses [8];
+	incorrectGuesses[0] = '\0';
+	int incorrectGuessIndex = 0;
+
+	int check = 0;
+
+	while (1) {
+		printf ("Please take your guess.\n");
+		scanf (" %c", &userGuess);
+		check = 0;
+		for (i = 0; i < 6; i++) {
+			if (userGuess == hangmanWord [i]) {
+				fillArray [i] = userGuess;
+				check = 1;
+			}
+		}
+		if (check == 0) {
+			incorrectGuesses[incorrectGuessIndex] = userGuess;
+			incorrectGuessIndex++;
+			incorrectGuesses[incorrectGuessIndex] = '\0';
+		}
+
+		printf ("This is your hangman situation: %s\n", fillArray);
+		printf ("These are your incorrect guesses: %s\n", incorrectGuesses);
+		if (incorrectGuessIndex == 8) {
+			printf ("You lose!\n");
+			break;
+		}
+		if (strcmp (hangmanWord, fillArray) == 0) {
+			printf ("You won!\n");
+			break;
+		}
+
+	}
+
+}
+
diff --git a/stringfreq.c b/stringfreq.c
new file mode 100644
index 0000000..07d3e4c
--- /dev/null
+++ b/stringfreq.c
@@ -0,0 +1,38 @@
+/* Yael Kelmer. 
+ This code takes a user inputed string and counts the amount of times each letter shows up in the string. */
+
+#include <stdio.h>
+#include <string.h>
+
+int main ()
+{
+
+	printf ("Please type in the letters you want in your string\n");
+	char userString [100];
+	fgets (userString, sizeof(userString), stdin);
+
+	int stringLength = strlen (userString);
+	userString [stringLength - 1] = '\0';
+	stringLength -= 1;
+
+	int ASCIIarray [128];
+	
+	int i;
+	for (i = 0; i < 128; i++) {
+		ASCIIarray [i] = 0;
+	}
+
+	for (i = 0; i < stringLength; i++) {
+		char letter = userString [i];
+		ASCIIarray [(int) letter] += 1;
+	}
+
+	for (i = 0; i < 128; i++) {
+		if (ASCIIarray [i] > 0) {
+			printf ("%c = %d\n", (char) i, ASCIIarray [i]);
+		}
+	}
+}
+
+
+
diff --git a/sumarray.c b/sumarray.c
new file mode 100644
index 0000000..15820cf
--- /dev/null
+++ b/sumarray.c
@@ -0,0 +1,49 @@
+/*Yael Kelmer.
+  This code takes a user inputed array and outputs an array of the sum of all the integers in the array execpt for the indexed integer*/
+
+#include <stdio.h>
+
+int main ()
+{
+
+	printf ("Please insert the length of the array (how many integers you want in your list of integers)\n");
+	int lengthArray;
+	scanf ("%d", &lengthArray);
+	printf ("Please insert the integers you want to be in the array (remember it has to match the length of the array) \n");
+	
+	int userArray [lengthArray];
+
+	int i;
+	int userInput;
+	for (i = 0; i < lengthArray; i++) {
+		scanf ("%d", &userInput); 
+		userArray [i] = userInput;
+	}
+	
+
+	int outputArray [lengthArray];
+	
+	int j;
+	int sum = 0;
+	for (j = 0; j < lengthArray; j++) {
+		sum = sum + userArray [j];
+	}
+
+	for (i = 0; i < lengthArray; i++) {
+		outputArray [i]  = sum - userArray [i];
+		
+	}
+	
+	printf ("This is your input array: [ ");
+	for (i = 0; i < lengthArray; i++) {
+		printf ("%d ", userArray [i]);
+	}
+	printf ("]\n");
+
+	printf ("This is your ouput array: [ ");
+	for (i = 0; i < lengthArray; i++) {
+		printf ("%d ", outputArray [i]);
+	}
+	printf ("]\n");
+
+}