Compilare: user.c: In function ‘main’: user.c:6:11: warning: unused variable ‘i’ [-Wunused-variable] int T, N, i, _case = 0, solution[] = {1, 2, 4, 7, 13, 25, 46, 86, 161, 300, ^ user.c:13:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%d", &T); ^ user.c:16:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%d", &N); ^