Compilare: user.c:9:43: warning: backslash and newline separated by space [enabled by default] char __tmp = *__a; \ ^ user.c:10:43: warning: backslash and newline separated by space [enabled by default] *__a = *__b; \ ^ user.c: In function ‘mergeSort’: user.c:78:5: warning: implicit declaration of function ‘memcpy’ [-Wimplicit-function-declaration] memcpy(__p + k * d, p + i * d, d); ^ user.c:78:5: warning: incompatible implicit declaration of built-in function ‘memcpy’ [enabled by default] user.c:83:5: warning: incompatible implicit declaration of built-in function ‘memcpy’ [enabled by default] memcpy(__p + k * d, p + j * d, d); ^ user.c:90:4: warning: incompatible implicit declaration of built-in function ‘memcpy’ [enabled by default] memcpy(__p + k * d, p + i * d, d); ^ user.c:95:4: warning: incompatible implicit declaration of built-in function ‘memcpy’ [enabled by default] memcpy(__p + k * d, p + j * d, d); ^ user.c:100:4: warning: incompatible implicit declaration of built-in function ‘memcpy’ [enabled by default] memcpy(p + i * d, __p + j * d, d); ^ user.c: In function ‘read’: user.c:29:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.c:37:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", *v + i); ^