Compilare: user.c: In function ‘readArray’: user.c:12:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", v + i); ^ user.c: In function ‘main’: user.c:80:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &N); ^ user.c: In function ‘solveSecond’: user.c:60:18: warning: ‘poss’ may be used uninitialized in this function [-Wmaybe-uninitialized] auxArray[k] = v[poss]; ^