To print size of int, float, char, bool, shortint and longint.

ap0

 #include<iostream>

using namespace std;

int main(){

    int a; //declaration

    a=12; //initialisation

    cout<<"size of int"<<sizeof(a)<<endl;

    float b;

    cout<<"size of float"<<sizeof(b)<<endl;

    char c;

    cout<<"size of char"<<sizeof(c)<<endl;

    bool d;

    cout<<"size of bool"<<sizeof(d)<<endl;

    short int si;

    long int li;

     

    cout<<"size of shortint"<<sizeof(si)<<endl;

    cout<<"size of longint"<<sizeof(li)<<endl;

    return 0;

         }