foo.cc: In function 'int main()':
foo.cc:13:22: error: expected ')' before '\U0000ff09'
   13 | for(int i=1;i<=10;i++）
      |    ~                 ^~
      |                      )
foo.cc:13:22: error: '\U0000ff09' was not declared in this scope
   13 | for(int i=1;i<=10;i++）
      |                      ^~
foo.cc:21:2: error: expected '}' at end of input
   21 | }
      |  ^
foo.cc:4:1: note: to match this '{'
    4 | {
      | ^
foo.cc:6:5: warning: unused variable 'y' [-Wunused-variable]
    6 | int y=0;
      |     ^

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