Compilare: user.c: In function ‘search’: user.c:43:9: warning: unused variable ‘sum’ [-Wunused-variable] int sum = Sum[n - 1] - sumi; ^ user.c: In function ‘main’: user.c:66:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("split2.in", "r", stdin); ^ user.c:67:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("split2.out", "w", stdout); ^ user.c:70:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &t); ^ user.c:72:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i%i", &n, &m); ^ user.c:77:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%i", &A[i]); ^