v.c: In function 'main': v.c:12: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result v.c:15: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result v.c:25: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result v.c:28: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result v.c:40: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result v.c:11: warning: 'maxc' may be used uninitialized in this function v.c:11: warning: 'maxl' may be used uninitialized in this function