Compilare: user.cpp: In function ‘int main()’: user.cpp:77:63: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(k = 0; k < 8; ++k) deja[i][j][k] = f[ a[i][j] ]; ^ user.cpp:61:53: warning: variable ‘k0’ set but not used [-Wunused-but-set-variable] int count=0,ans,i,j,k,N,M,x0,y0,xf,yf,x,y,xc,yc,k0,k1,sum; ^ user.cpp: In function ‘void Read(char&)’: user.cpp:49:49: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==DIM) fread(buff,1,DIM,stdin),poz=0; ^ user.cpp:53:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz==DIM) fread(buff,1,DIM,stdin),poz=0; ^ user.cpp: In function ‘int main()’: user.cpp:58:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("car.in","r",stdin); ^ user.cpp:59:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("car.out","w",stdout); ^ user.cpp:64:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&N,&M); ^ user.cpp:65:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&x0,&y0,&xf,&yf); ^