编译失败☟

/tmp/compiler_u9mly69u/src: 在函数‘int main()’中: /tmp/compiler_u9mly69u/src:26:1: 错误：expected ‘}’ at end of input } ^ /tmp/compiler_u9mly69u/src:3:11: 附注：to match this ‘{’ int main(){

程序☟

#include <iostream>
using namespace std;
int main(){
    int a=0;
    double b=0;
    cin>>a;
    if(a<=150)
    {
        b=a*0.4463;
    }
    else
    {
    if(a>=151&&a<=400)
    {
        b+=150*0.4463;
        b+=(a-150)*0.4663;
    }
    else
    {
        b+=150*0.4463;
        b+=(400-150)*0.4663;
        b+=(a-400)*0.5663;
    }
    b=(int)(b*10)+0.5/10.0;
    return 0;
}

无奈