帮忙看下这个c++代码

有一函数： y=x (x<1) y=3x-1 (1<=x<10) y=4x-2 (x>=10) 编写程序，输入x，输出y的值这个是我写的代码：#include<stdio.h>int main(){ int x,y; scanf("%d",&x); if(x<1) y=x; else if(x>=10) y=4x-2; else y=3x-1; printf("%d尀n,y); return 0;}编译结果如下：Compiling...Cpp1.cppC:尀Users尀Tom尀Desktop尀Cpp1.cpp(9) : error C2059: syntax error : ✀bad suffix on number✀C:尀Users尀Tom尀Desktop尀Cpp1.cpp(9) : error C2146: syntax error : missing ✀;✀ before identifier ✀x✀C:尀Users尀Tom尀Desktop尀Cpp1.cpp(9) : warning C4552: ✀-✀ : operator has no effect; expected operator with side-effectC:尀Users尀Tom尀Desktop尀Cpp1.cpp(10) : error C2181: illegal else without matching ifC:尀Users尀Tom尀Desktop尀Cpp1.cpp(11) : error C2059: syntax error : ✀bad suffix on number✀C:尀Users尀Tom尀Desktop尀Cpp1.cpp(11) : error C2146: syntax error : missing ✀;✀ before identifier ✀x✀C:尀Users尀Tom尀Desktop尀Cpp1.cpp(11) : warning C4552: ✀-✀ : operator has no effect; expected operator with side-effectC:尀Users尀Tom尀Desktop尀Cpp1.cpp(12) : error C2001: newline in constantC:尀Users尀Tom尀Desktop尀Cpp1.cpp(13) : error C2143: syntax error : missing ✀)✀ before ✀return✀C:尀Users尀Tom尀Desktop尀Cpp1.cpp(14) : warning C4508: ✀main✀ : function should return a value; ✀void✀ return type assumed执行 cl.exe 时出错.刚开始学，问题比较多，谢谢了