Compilare: user.cpp: In function ‘int main()’: user.cpp:21:9: warning: variable ‘finL’ set but not used [-Wunused-but-set-variable] int finL, finR, finT, finB; ^ user.cpp:21:15: warning: variable ‘finR’ set but not used [-Wunused-but-set-variable] int finL, finR, finT, finB; ^ user.cpp:21:21: warning: variable ‘finT’ set but not used [-Wunused-but-set-variable] int finL, finR, finT, finB; ^ user.cpp:21:27: warning: variable ‘finB’ set but not used [-Wunused-but-set-variable] int finL, finR, finT, finB; ^ user.cpp: In function ‘void computeMatrix()’: user.cpp:96:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:103:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld",&a[i]); ^ user.cpp:108:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%ld",&b[j]); ^