Initial commit

1 files changed, 51 insertions, 0 deletions

diff --git a/1-14_character-freq-histogram.c b/1-14_character-freq-histogram.c
new file mode 100644
index 0000000..14c4871
--- /dev/null
+++ b/1-14_character-freq-histogram.c
@@ -0,0 +1,51 @@
+#include <stdio.h>
+int main(void) {
+	/* Rundown of variables:
+	   c = current input char
+	   ltrs = letter count
+	   chars = string containing the characters the program will count
+	   lengths = the counts for each character
+	*/
+
+	int c;
+	int i = 0;
+	char chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+	/* cnum is the number of characters found in the above string */
+	int cnum = 0;
+	while (chars[i] != '\0') {
+		cnum += 1;
+		++i;
+	}
+
+	/* This array need its members to be initialized to zero. */
+	int lengths[cnum];
+	for (i = 0; i <= cnum; ++i) {
+		lengths[i] = 0;
+	}
+
+	// Capture input until it ends
+	while ((c = getchar()) != EOF) {
+		for (i = 0; i < cnum; ++i) {
+			if (c == chars[i]) {
+				lengths[i] += 1;
+			}
+		}
+	}
+	// This is ugly and I wish I knew a better way to do it.
+	printf("\nCHARACTER FREQUENCY\n\n         5   10   15   20   25   30   35   40   45   50   55   60   65   70   75\n");
+	int iter = 0;
+	while (iter <= cnum) {
+		i = lengths[iter];
+		if (i > 0) {
+			printf("%2c | ", chars[iter]);
+			while (i > 0) {
+				printf("#");
+				i -= 1;
+			}
+			printf("\n");
+		}
+		++iter;
+	}
+	return 0;
+}