add initial c, cpp files

c/isp-ws25/a2-vowels.c

@@ -0,0 +1,47 @@
+#include <stdio.h>
+#include <string.h>
+
+#define STRING_SIZE 30
+
+void inputString(char user_input[])
+{
+  printf("Please enter the string: ");
+  fgets(user_input, STRING_SIZE, stdin);
+}
+
+void countVowels(char user_input[], int vowels[])
+{
+    int position = 0;
+    while (user_input[position] != '\n')
+    {
+        if (user_input[position] == 'a' || user_input[position] == 'A') vowels[0]++;
+        if (user_input[position] == 'e' || user_input[position] == 'E') vowels[1]++;
+        if (user_input[position] == 'i' || user_input[position] == 'I') vowels[2]++;
+        if (user_input[position] == 'o' || user_input[position] == 'O') vowels[3]++;
+        if (user_input[position] == 'u' || user_input[position] == 'U') vowels[4]++;
+        position++;
+    }
+}
+
+void printVowels(int vowels[])
+{
+    printf("a: %d\n", vowels[0]);
+    printf("e: %d\n", vowels[1]);
+    printf("i: %d\n", vowels[2]);
+    printf("o: %d\n", vowels[3]);
+    printf("u: %d\n", vowels[4]);
+}
+
+int main(void)
+{
+  char user_input[STRING_SIZE] = {'\0'};
+  int vowels[5] = {0};
+  
+  inputString(user_input);
+  
+  countVowels(user_input, vowels);
+  
+  printVowels(vowels);
+
+  return 0;
+}