Compilare: user.cpp: In function ‘int main()’: user.cpp:57:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(maxim<(sup[ch[i-1][j]]+sup[ch[i+1][j]])) ^ user.cpp:57:61: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(maxim<(sup[ch[i-1][j]]+sup[ch[i+1][j]])) ^ user.cpp:61:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] maxim=(sup[ch[i-1][j]]+sup[ch[i+1][j]]); ^ user.cpp:61:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] maxim=(sup[ch[i-1][j]]+sup[ch[i+1][j]]); ^ user.cpp:66:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(maxim<(sup[ch[i][j-1]]+sup[ch[i][j+1]])) ^ user.cpp:66:61: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(maxim<(sup[ch[i][j-1]]+sup[ch[i][j+1]])) ^ user.cpp:70:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] maxim=(sup[ch[i][j-1]]+sup[ch[i][j+1]]); ^ user.cpp:70:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] maxim=(sup[ch[i][j-1]]+sup[ch[i][j+1]]); ^ user.cpp:20:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^ user.cpp:25:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&ch[0][0]); ^ user.cpp:28:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&ch[i][j]); ^