#include<iostream>
using namespace std;
struct U1{
    char a;
    double c;
    int b;
}u1;
struct U2{
    double c;
    int b;
    char a[4];
}u2;
struct U3{
    char a1,a2,a3,a4,a5,a6,a7,a8,a9;
    double c;   
    int b;
}u3;
union U4{
    double c;
    int b;
    char a;
}u4;
union U5{
    char a[17];
    double c[2];
    int b[5];
}u5;
union U6{
    double c;
    int b;
    char a1,a2,a3,a4,a5,a6,a7,a8,a9;
}u6;
int main(){
    cout<<sizeof(u1)<<endl;//①处
    cout<<sizeof(u2)<<endl;//②处
    cout<<sizeof(u3)<<endl;//③处
    cout<<sizeof(u4)<<endl;//④处
    cout<<sizeof(u5)<<endl;//⑤处
    cout<<sizeof(u6)<<endl;//⑥处
    return 0;
} 

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