Compilare: user.cpp: In function ‘int main()’: user.cpp:11:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin>>s+1; ^ user.cpp:19:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] D[i][i+1] = a[s[i]][s[i+1]]; ^ user.cpp:19:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] D[i][i+1] = a[s[i]][s[i+1]]; ^ user.cpp:30:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] D[i][j] = min (D[i][j], a[ s[i] ][ s[k] ] + D[i+1][k-1] + D[k+1][j]); ^ user.cpp:30:57: warning: array subscript has type ‘char’ [-Wchar-subscripts] D[i][j] = min (D[i][j], a[ s[i] ][ s[k] ] + D[i+1][k-1] + D[k+1][j]); ^