.

bac2/os/chap0/ex8.c

@@ -0,0 +1,34 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+
+void print_histogram(char string[]);
+
+int main(int argc, char *argv[])
+{
+	char test[] = "I am a test and im diggin a test... diggy diggy test...";
+	printf("%s\n",test);
+	print_histogram(test);
+	return 0;
+}
+
+void print_histogram(char string[]){
+	char num_letters['z' - 'a'];
+	for(char i = 0; i <= 'z' - 'a'; i++){
+		num_letters[i] = 0;
+	}
+	char i = 0;
+	while(string[i] != '\0'){
+		if(string[i] >= 'a' && string[i] <= 'z'){
+			num_letters[string[i]-'a']++;
+		}
+		i++;
+	}
+
+	for(char i = 0; i <= 'z' - 'a'; i++){
+		if(num_letters[i] != 0){
+			printf("%c -> %d\n", i + 'a', num_letters[i]);
+		}
+	}
+
+}