C Nested if...else
#include <stdio.h>
int main() {
int num;
printf("Enter an integer: ");
scanf("%d", &num);
if (num > 0) {
printf("The number is positive.\n");
} else if (num < 0) {
printf("The number is negative.\n");
} else {
printf("The number is zero.\n");
}
return 0;
}