char.c: In function 'main': char.c:13: warning: array subscript has type 'char' char.c:29: warning: array subscript has type 'char' char.c:31: warning: array subscript has type 'char' char.c:34: warning: array subscript has type 'char' char.c:8: warning: unused variable 'ch' char.c:10: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result char.c:15: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result char.c:19: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result