c programming

Both group A &B) What is the problem of the following program? How can we solve this problem? #include void main(void){ puts(" \t------ --- "); puts("\tWhy do we need different data types? "); puts("\t- - "); char myVariable=128; printf("The orignal number is %d ",myVariable); printf("Size of your variable is %lu bytes ", sizeof(myVariable)); printf("Please enter a value to exit ;)"); scanf("%d"); }