Compilare: user.c: In function ‘main’: user.c:42:21: warning: unused variable ‘k’ [-Wunused-variable] size_t i, j, t, k, match = 0, y = 0; ^ user.c:38:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "r", stdin); ^ user.c:43:10: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(pattern, STRINGLENGTH, stdin); ^ user.c:49:10: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(text, STRINGLENGTH, stdin); ^ user.c:79:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "w", stdout); ^