answer.code: In function ‘int main()’:
answer.code:64:13: error: expected primary-expression before ‘}’ token
   64 |             }
      |             ^
answer.code:42:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   42 |                 scanf("%d",&a[i][j]),in[j].insert({a[i][j],i});
      |                 ~~~~~^~~~~~~~~~~~~~~