Datatypes

#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 short_int "<<sizeof(si)<<endl;
    cout<<"size of long_int "<<sizeof(li)<<endl;

    return 0;
}

//Output

size of int 4
size of float 4
size of char 1
size of bool 1
size of short_int 2
size of long_int 4