Compilare: user.cpp: In function ‘void back(int, int)’: user.cpp:15:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] minim=cost[s[start]][s[stop]]; ^ user.cpp:15:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] minim=cost[s[start]][s[stop]]; ^ user.cpp:22:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:22:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:22:56: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:22:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:22:84: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:22:95: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:22:114: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:22:123: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=cost[s[start]][s[stop]];b=cost[s[start+1]][s[stop-1]];c=cost[s[start]][s[stop-1]];d=cost[s[start+1]][s[stop]]; ^ user.cpp:28:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] minim=min(minim,mi[start+1][stop-1]+cost[s[start]][s[stop]]); ^ user.cpp:28:71: warning: array subscript has type ‘char’ [-Wchar-subscripts] minim=min(minim,mi[start+1][stop-1]+cost[s[start]][s[stop]]); ^ user.cpp: In function ‘int main()’: user.cpp:51:70: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(char i='a';i<='z';i++) for(char j='a';j<='z';j++) fin>>cost[i][j]; ^ user.cpp:51:73: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(char i='a';i<='z';i++) for(char j='a';j<='z';j++) fin>>cost[i][j]; ^