/in/foo.cc:7:2: error: stray '\357' in program
  int n,k=0；
  ^
/in/foo.cc:7:2: error: stray '\274' in program
/in/foo.cc:7:2: error: stray '\233' in program
/in/foo.cc: In function 'int main()':
/in/foo.cc:8:2: error: expected ',' or ';' before 'cin'
  cin >> n;
  ^
/in/foo.cc:9:2: error: 't' was not declared in this scope
  t = n;
  ^