added count_vowels.c

count_vowels.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+
+// Program to count vowels in a string
+int main() {
+  char str[100];
+  int i, count = 0;
+
+  // Ask the user to enter a string
+  printf("Enter a string: ");
+  fgets(str, sizeof(str), stdin); // safer input method than gets()
+
+  // Loop through the string
+  for (i = 0; str[i] != '\0'; i++) {
+    // Check for both uppercase and lowercase vowels
+    if (str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' ||
+        str[i] == 'u' || str[i] == 'A' || str[i] == 'E' || str[i] == 'I' ||
+        str[i] == 'O' || str[i] == 'U') {
+      count++;
+    }
+  }
+
+  // Display the total number of vowels
+  printf("Number of vowels: %d\n", count);
+
+  return 0;
+}