Compilare: main.c: In function 'main': main.c:12:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &n, &v[0], &v[1] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:21:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &v[k] ); ^~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:44:15: warning: 'sc3' may be used uninitialized in this function [-Wmaybe-uninitialized] max3 += sum - sc3; ~~~~^~~~~ main.c:45:28: warning: 'sc2' may be used uninitialized in this function [-Wmaybe-uninitialized] max1 += sum + max2 - sc1 - sc2; ~~~~~~~~~~~~~~~~~^~~~~