foo.c: In function 'main':
foo.c:8:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(l%10==2)n+=1;l=l/10;
   ^~
foo.c:8:19: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   if(l%10==2)n+=1;l=l/10;
                   ^
foo.c:7:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  {for(i=0;i<=3;i++)
   ^~~
foo.c:8:19: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   if(l%10==2)n+=1;l=l/10;
                   ^
foo.c:4:14: warning: unused variable 'c' [-Wunused-variable]
  int l,p,n=0,c,i;
              ^
foo.c:5:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&l,&p);
  ^~~~~~~~~~~~~~~~~~~~

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