foo.cc: In function ‘int main()’:
foo.cc:14:38: error: ‘还会互相覆盖’ was not declared in this scope
   14 |         memset(dp, 0x3f, sizeof(dp));还会互相覆盖
      |                                      ^~~~~~~~~~~~
foo.cc:27:43: error: expected ‘;’ before ‘)’ token
   27 |                 for(int j=0; j<i; j++) {+1)
      |                                           ^
      |                                           ;
foo.cc:27:41: warning: statement has no effect [-Wunused-value]
   27 |                 for(int j=0; j<i; j++) {+1)
      |                                         ^~