online compiler and debugger for c/c++

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/****************************************************************************** Esercizio 3. Leggere un carattere e se è una lettera minuscola trasformarla in maiuscola e viceversa. *******************************************************************************/ #include <iostream> using namespace std; int main() { char c; cout<<"inserisci un carattere "; cin>>c; if((c>='a'&&c<='z')) { //lettera minuscola trasformo in maiuscola c=c-'a'+'A'; } else { if(c>='A'&&c<='Z') { //lettera maiuscola trasformo in minuscola c=c-'A'+'a'; } } cout<<c; }

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