foo.cc: In function ‘int main()’:
foo.cc:7:13: error: expected unqualified-id before string constant
    7 |         int "最少体力"=(n/k)+(n%k);
      |             ^~~~~~~~~~
foo.cc:9:24: error: ‘o’ was not declared in this scope
    9 |                 return o;
      |                        ^