C++新手有疑问

#include<iostream>
using namespace std;
int main(int argc,char* argv[])
{
cout<<"欢迎使用托运行李系统"<<endl;
int fee;
int weight;
int number;
int cabin;
int health;
cout<<"请输入行李重量"<<endl;
cin>>weight;
if(weight<=30){
cout<<"恭喜您！您本次行李托运免费！"<<endl;
}
else(weight>30){
cout<<"国内旅客请输入1(Please input Num1 if you are Chinese)"<<endl;
cout<<"国际旅客请输入0(Please input Num0 if you are not Chinese)"<<endl;
cin>>number;
if(number==1){
cout<<"头等舱旅客请输入1"<<endl;
cout<<"非头等舱旅客请输入0"<<endl;
cin>>cabin;
if(cabin==1){
cout<<"残疾人旅客请输入1"<<endl;
cout<<"非残疾人旅客请输入0"<<endl;
cin>>health;
if(health==1){
weight=(weight-30)*2;
cout<<"您本次托运费为"<<weight<<endl;
}
else(health!=1){
fee=(weight-30)*4;
cout<<"您本次托运费为"<<fee<<endl;
}
}
else(cabin!=1){
cout<<"残疾人旅客请输入1"<<endl;
cout<<"非残疾人旅客请输入0"<<endl;
cin>>health;
if(health==1){
fee=(weight-30)*3;
cout<<"您本次托运费为"<<fee<<endl;
}
else(health!=1){
fee=(weight-30)*6;
cout<<"您本次托运费为"<<fee<<endl;
}
}
}
else(number!=1){
cout<<"头等舱旅客请输入1"<<endl;
cout<<"非头等舱旅客请输入0"<<endl;
cin>>cabin;
if(cabin==1){
cout<<"残疾人旅客请输入1"<<endl;
cout<<"非残疾人旅客请输入0"<<endl;
cin>>health;
if(health==1){
fee=(weight-30)*4;
cout<<"您本次托运费为"<<fee<<endl;
}
else(health!=1){
fee=(weight-30)*8;
cout<<"您本次托运费为"<<fee<<endl;
}
}
else(cabin!=1){
cout<<"残疾人旅客请输入1"<<endl;
cout<<"非残疾人旅客请输入0"<<endl;
cin>>health;
if(health==1){
fee=(weight-30)*6;
cout<<"您本次托运费为"<<fee<<endl;
}
else(health!=1){
fee=(weight-30)*12;
cout<<"您本次托运费为"<<fee<<endl;
}
}
}
}
}
求大神帮我看一下问题出在哪里。。