运行 ID: 75419

Main.cc: In function ‘int n(int)’:
Main.cc:5:9: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
     if(n=0) return 1;
        ~^~
Main.cc: In function ‘int main()’:
Main.cc:12:14: error: ‘n’ cannot be used as a function
     cout<