Compilare: user.cpp: In function ‘int main()’: user.cpp:9:11: warning: unused variable ‘c’ [-Wunused-variable] int n,c,i,m,j,cc,l,ll,k=1,aux1,ss,p; ^ user.cpp:9:19: warning: unused variable ‘cc’ [-Wunused-variable] int n,c,i,m,j,cc,l,ll,k=1,aux1,ss,p; ^ user.cpp:9:24: warning: unused variable ‘ll’ [-Wunused-variable] int n,c,i,m,j,cc,l,ll,k=1,aux1,ss,p; ^ user.cpp:9:27: warning: unused variable ‘k’ [-Wunused-variable] int n,c,i,m,j,cc,l,ll,k=1,aux1,ss,p; ^ user.cpp:11:28: 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:16:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i][j]); ^ user.cpp:26:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&b[i][j]); ^