Compilare: user.cpp: In function ‘int main()’: user.cpp:52:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&M); ^ user.cpp:53:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &N); ^ user.cpp:56:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &A[i]); ^ user.cpp:58:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &B[i]); ^ user.cpp: In function ‘void cel_mai_lung_subsir_comun(int*, int*, int, int)’: user.cpp:13:20: warning: ‘pozA’ may be used uninitialized in this function [-Wmaybe-uninitialized] int cmax = 0, c=0,pozA,i=0,j=0; ^~~~