20. Write a C program that reads an integer and check the specified range where it belongs. Print an error message if the number is negative and greater than 80.

21. Write a C program that reads an integer and check the specified range where it belongs. Print an error message if the number is negative and greater than 80. 
Test Data :
Input an integer: 15
Expected Output:
Range [0, 20]

#include <stdio.h> int main() { int x; printf("\nInput an integer: "); scanf("%d", &x); if(x >=0 && x <= 20) { printf("Range [0, 20]\n"); } else if(x >=21 && x <= 40) { printf("Range (25,50]\n"); } else if(x >=41 && x <= 60) { printf("Range (50,75]\n"); } else if(x >61 && x <= 80) { printf("Range (61,80]\n"); } else { printf("Outside the range\n"); } return 0; }