foo.cc: In function 'int main()':
foo.cc:9:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(i=0;i<n;i++)
  ^~~
foo.cc:13:10: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
          a[j]=a[j+1];
          ^
foo.cc:6:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
foo.cc:8:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~
foo.cc:13:18: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
          a[j]=a[j+1];
                 ~^~
foo.cc:14:16: warning: 'temp' may be used uninitialized in this function [-Wmaybe-uninitialized]
          a[j+1]=temp;
          ~~~~~~^~~~~

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