tasks a-s

Task/Binary-digits/C/binary-digits-1.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+void bin(int x, char *s)
+{
+	char*_(int x){
+		*(s = x ? _(x >> 1) : s) = (x & 1) + '0';
+		return ++s;
+	}
+	*_(x) = 0;
+}
+
+int main()
+{
+	char a[100];
+	int i;
+	for (i = 0; i <= 1984; i += 31)
+		bin(i, a), printf("%4d: %s\n", i, a);
+
+	return 0;
+}

Task/Binary-digits/C/binary-digits-2.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+void IntToBitString(unsigned int number)
+{
+    int num_bits = sizeof(unsigned int) * 8;
+
+    bool startPrinting = false;
+    for (int bit_pos=num_bits-1; bit_pos >= 0; bit_pos--)
+    {
+        bool isBitSet = (number & (1<<bit_pos)) != 0;
+
+        if (!startPrinting && isBitSet)
+            startPrinting = true;
+
+        if (startPrinting || bit_pos==0)
+            printf("%s", isBitSet ? "1":"0");
+    }
+
+    printf("\r\n");
+}
+
+int main()
+{
+    IntToBitString(0);
+    IntToBitString(5);
+    IntToBitString(50);
+    IntToBitString(9000);
+
+    return 0;
+}