Compilare: main.cpp: In function 'void Read()': main.cpp:14:11: warning: unused variable 'j' [-Wunused-variable] int i,j,X,Y,C; ^ main.cpp:13:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d%d",&N,&M,&K,&P); ^ main.cpp:17:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&X,&Y,&C); ^ main.cpp:21:51: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&X,&Y,&C),Amenda[Y][X]=C; ^ main.cpp: In function 'void Displaying()': main.cpp:52:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&X,&Y); ^