foo.cc:4:8: warning: missing terminating " character
4 | cout<<"
| ^
foo.cc:4:8: error: missing terminating " character
foo.cc:126:24: warning: missing terminating " character
126 | 26 27 28 29 30 31";
| ^
foo.cc:126:24: error: missing terminating " character
126 | 26 27 28 29 30 31";
| ^~
foo.cc: In function 'int main()':
foo.cc:6:2: error: lvalue required as decrement operand
6 | 2021/1
| ^~~~
foo.cc:7:2: error: lvalue required as decrement operand
7 | ----------------------------
| ^~
[Hydro](https://hydro.ac)提供评测服务