题解 | #定义变量#

#include <iostream>

int main() {
    char c;
    int i;
    long l;
    double d;

    std::cout  << sizeof(c) << std::endl;
    std::cout << sizeof(i) << std::endl;
    std::cout  << sizeof(l) << std::endl;
    std::cout  << sizeof(d) << std::endl;

    return 0;
}