upd course

A13/ten_op_4.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    int num;
+
+    printf("Please enter a number: \n");
+
+    scanf("%i", &num);
+
+    if (num < 0)
+    {
+        printf("-1");
+    }
+    else if (num > 0)
+    {
+        printf("1");
+    }
+    else if (num == 0)
+    {
+        printf("0");
+    }
+    else
+    {
+        printf("Error");
+    }
+
+    return 0;
+}