foo.cc: In function 'int main()':
foo.cc:17:22: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   17 | #define rep( i , x ) for ( int i = 0 ; i ++ < x ; )
      |                      ^~~
foo.cc:119:5: note: in expansion of macro 'rep'
  119 |     rep( i , n ) printf( "%d " , ans[ i ] ) ; printf( "\n" ) ;
      |     ^~~
foo.cc:119:47: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  119 |     rep( i , n ) printf( "%d " , ans[ i ] ) ; printf( "\n" ) ;
      |                                               ^~~~~~
foo.cc:105:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  105 |     scanf( "%d%d" , &n , &m ) ;
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~
foo.cc:107:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  107 |     rep( i , n ) scanf( "%d" , ti + i ) ;
      |                  ~~~~~^~~~~~~~~~~~~~~~~
foo.cc:111:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  111 |         int s , t ; scanf( "%d%d" , &t , &s ) ;
      |                     ~~~~~^~~~~~~~~~~~~~~~~~~~

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