lightbot.c: In function 'main': lightbot.c:10: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result lightbot.c:12: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result lightbot.c:16: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result lightbot.c:31: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result lightbot.c:36: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result lightbot.c:59: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result lightbot.c:63: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result