foo.cc: In function 'int main()':
foo.cc:15:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int j=0;j<n-1;j++)
  ^~~
foo.cc:21:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   if(a[j+1]>a[j+2])
   ^~
foo.cc:21:8: error: 'j' was not declared in this scope
   if(a[j+1]>a[j+2])
        ^

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