Compilare: user.cpp: In function ‘void scad(tp*, tp*)’: user.cpp:39:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=B[0]||t;i++) ^ user.cpp: In function ‘void mult(tp*, tp*)’: user.cpp:52:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=A[0];i++) ^ user.cpp:53:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<=B[0];j++) ^ user.cpp: In function ‘void imp(tp*, tp*, tp*, tp*)’: user.cpp:79:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=A[0];i++) ^ user.cpp:81:26: warning: overflow in implicit constant conversion [-Woverflow] multscalar(R,BASE); ^ user.cpp:83:26: warning: overflow in implicit constant conversion [-Woverflow] multscalar(C,BASE); ^ user.cpp: In function ‘void impscalar(tp*, tp*, tp&, tp)’: user.cpp:95:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=A[0];i++) ^ user.cpp:98:26: warning: overflow in implicit constant conversion [-Woverflow] multscalar(C,BASE); ^ user.cpp: In function ‘int main()’: user.cpp:108:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&N,&K); ^