foo.cc: In function 'void solvemx(int)':
foo.cc:19:77: error: expected ';' before ')' token
   19 |             dp[i][j]=max(dp[i][j],dp[i-1][nw]*  (((ps[j]-ps[nw])%10)+10)%10) );
      |                                                                             ^~
      |                                                                             ;
foo.cc: In function 'int main()':
foo.cc:51:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   51 |     scanf(" %lld",&ar[i]);ar[i]%=10;ar[i+n]=ar[i];
      |     ~~~~~^~~~~~~~~~~~~~~~

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