Compilare: user.cpp: In function ‘int main()’: user.cpp:87:10: warning: unused variable ‘sums’ [-Wunused-variable] double sums[MAT_MAX_SIZE], diffs[MAT_MAX_SIZE]; ^ user.cpp:87:30: warning: unused variable ‘diffs’ [-Wunused-variable] double sums[MAT_MAX_SIZE], diffs[MAT_MAX_SIZE]; ^ user.cpp:89:10: warning: unused variable ‘dets’ [-Wunused-variable] double dets[MAT_MAX_SIZE][MAT_MAX_SIZE]; ^ user.cpp:60:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pFin, "%d", &tests); ^ user.cpp:64:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pFin, "%d", &n); ^ user.cpp:73:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pFin, "%d", &nr); ^