Compilare: user.cpp: In function ‘int main()’: user.cpp:20:49: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘int’ [-Wformat=] fscanf( input_file, "%d", A[1][k][i][j] ); ^ user.cpp:15:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( input_file, "%d %d", &N, &K ); ^ user.cpp:20:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( input_file, "%d", A[1][k][i][j] ); ^