Compilare: user.c: In function ‘main’: user.c:37:15: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses] for(i = 1; i <= 1000 < nr ? 1000 : nr; i++) ^ user.c:9:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "r", stdin); ^ user.c:10:9: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "w", stdout); ^ user.c:11:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n%s", a + 1, b + 1); ^