Changed it from "+" to ">"

PositiveOrNegative.c

@@ -4,7 +4,7 @@ void main() {
     int num;
     printf("Input a number :");
     scanf("%d", &num);
-    if (num += 0)
+    if (num >= 0)
         printf("%d is a positive number \n", num);
     else if (num == 0) {
         printf("%d is zero \n", num);
@@ -12,4 +12,4 @@ void main() {
     else {
         printf("%d is a negative number \n", num);
     }
-}
+}