//file: characters3.cpp //converts lower case to upper case #include //The old C library functions #include int main() { char c; while(cin.get(c)) //get(c) returns true until EOF character is encountered { //if(c>='a' && c<='z') //NOT necessary to write (c>=97 && c<=122) // c+='A'-'a'; c=toupper(c); cout<