Compilare: user.cpp: In function ‘void Try_it(char, char, char, long int)’: user.cpp:10:8: warning: array subscript has type ‘char’ [-Wchar-subscripts] r[i][j] = 0; ^ user.cpp:10:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] r[i][j] = 0; ^ user.cpp:11:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] l[pas] = a[i][j]; ^ user.cpp:11:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] l[pas] = a[i][j]; ^ user.cpp:11:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] l[pas] = a[i][j]; ^ user.cpp:12:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum += 1L*pas*a[i][j]; ^ user.cpp:12:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum += 1L*pas*a[i][j]; ^ user.cpp:20:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (r[i-1][j]) Try_it(pas+1,i-1,j,sum); ^ user.cpp:21:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (r[i+1][j]) Try_it(pas+1,i+1,j,sum); ^ user.cpp:22:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (r[i][j-1]) Try_it(pas+1,i,j-1,sum); ^ user.cpp:23:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (r[i][j+1]) Try_it(pas+1,i,j+1,sum); ^ user.cpp:30:8: warning: array subscript has type ‘char’ [-Wchar-subscripts] r[i][j] = 1; ^ user.cpp:30:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] r[i][j] = 1; ^ user.cpp: In function ‘int main()’: user.cpp:38:26: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘char*’ [-Wformat=] scanf("%d %d\n",&n,&m); ^ user.cpp:38:26: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘char*’ [-Wformat=] user.cpp:41:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] scanf("%d ",&a[i][j]); ^ user.cpp:41:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] scanf("%d ",&a[i][j]);