题解 | #定义变量#

#include <cstdio>
#include <iostream>
using namespace std;

int main() {

    char a ;
    int b ;
    long c ;
    double d ;
    a = sizeof(a);
    b = sizeof(b);
    c = sizeof(c);
    d = sizeof(d);
    printf("%d\r\n%d\r\n%d\r\n%d\r\n",a,b,c,(int)d);


    return 0;
}