1 files changed, 26 insertions, 0 deletions
diff --git a/2ndary/12/Q-VĩnhTường-2006/cau4.c b/2ndary/12/Q-VĩnhTường-2006/cau4.c
new file mode 100644
index 0000000..d971927
--- /dev/null
+++ b/2ndary/12/Q-VĩnhTường-2006/cau4.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <string.h>
+
+int main()
+{
+	char n, count = 0, s[21], c, i;
+	unsigned long long m;
+
+	for (n = 1; n < 20 && scanf("%lld", &m) != EOF; n++) {
+		if (m < 10)
+			continue;
+
+		sprintf(s, "%lld", m);
+		c = s[0];
+
+		for (i = 1; i < strlen(s) && c; i++)
+			c = (c > s[i]) ? 0 : s[i];
+
+		if (c)
+			count++;
+	}
+
+	printf("%hhd\n", count);
+
+	return 0;
+}