题解 | #定义变量#

#include <iostream>
using namespace std;

int main() {
    char x;
    int y;
    long int z;
    double a;
   // cin>>x  y   z   a;
    //cout<<"sizeof(int) sizeof(char) sizeof(long) sizeof(double)"<<endl;
    //printf("\n");
    //x=sizeof(char);
    //cout<<"x"<<endl;
    //cout<<"sizeof(x)"<<endl;
    printf("%d",sizeof(x));
    printf("\n");
    printf("%d",sizeof(y));
    printf("\n");
    printf("%d",sizeof(z));
    printf("\n");
    printf("%d",sizeof(a));
    return 0;
}