Compilare: user.c: In function ‘mat_putere’: user.c:40:21: warning: argument to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] memset(M, 0, sizeof(M)); ^ user.c: In function ‘main’: user.c:66:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &T); ^ user.c:68:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d %d\n", &A, &B, &C, &i); ^