1. Using the switch statement, write a program that converts a numerical grade into a letter grade:

Enter numerical grade: 84

Letter grade: B

Use the following grading scale: A = 90~100, B = 80~89, C = 70~79, D = 60~69, F = 0~59. Print an error message if the grade is larger than 100 or less than 0. Hint: Break the grade into two digits, then use a switch statement to test the tens digit.

1. Write your program here:

#include

int main(){

return 0;

}