Compilare: user.cpp: In function ‘int main()’: user.cpp:15:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin>>s+1; ^ user.cpp:23:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[i][i+1] = a[ s[i] ][ s[i+1] ]; ^ user.cpp:23:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[i][i+1] = a[ s[i] ][ s[i+1] ]; ^ user.cpp:31:74: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[i][j] = min(d[i][j], d[i+1][k-1] + d[k+1][j] + a[ s[i] ][ s[k] ]); ^ user.cpp:31:82: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[i][j] = min(d[i][j], d[i+1][k-1] + d[k+1][j] + a[ s[i] ][ s[k] ]); ^