Initial commit

1 files changed, 41 insertions, 0 deletions

diff --git a/one/count.c b/one/count.c
new file mode 100644
index 0000000..0f5bb82
--- /dev/null
+++ b/one/count.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+
+/* count digits, white space, and others */
+int
+main()
+{
+	int c, i, nwhite, nother;
+	int ndigit[10];
+	int nchar[26];
+	nwhite = nother = 0;
+
+	for (i = 0; i < 26; ++i) {
+		if (i < 10) {
+			ndigit[i] = 0;
+		}
+		nchar[i] = 0;
+	}
+
+	while ((c = getchar()) != EOF) {
+		if (c >= '0' && c <= '9') {
+			++ndigit[c - '0'];
+		} else if (c == ' ' || c == '\t' || c == '\n') {
+			++nwhite;
+		} else if (c >= 'a' && c <= 'z') {
+			++nchar[c - 'a'];
+		} else {
+			++nother;
+		}
+	}
+
+	printf("digits =");
+	for (i = 0; i < 10; ++i) {
+		printf(" %d", ndigit[i]);
+	}
+	printf("\nchars =");
+	for (i = 0; i < 26; ++i) {
+		printf(" %d", nchar[i]);
+	}
+	printf("\nwhite space = %d\nother = %d\n", nwhite, nother);
+	return 0;
+}