运行 ID: 36961

Main.cc: In function ‘int main()’:
Main.cc:8:16: error: lvalue required as left operand of assignment
  if(n<=1000&&y='n'){
                ^~~
Main.cc:10:22: error: lvalue required as left operand of assignment
  }else if(n<=1000&&y='y'){
                      ^~~
Main.cc:12:21: error: lvalue required as left operand of assignment
  }else if(n>1000&&y='n'){
                     ^~~
Main.cc:16:7: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   if(y='y'){
      ~^~~~