Compilare: user.cpp:12:25: warning: integer overflow in expression [-Woverflow] const int INF = (1<<31)-1; ^ user.cpp: In function ‘int main()’: user.cpp:131:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(F[a][j]) ^ user.cpp:133:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] Sol[a].push_back(i); ^ user.cpp:134:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] F[a][j]--; ^ user.cpp:138:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] Sol[b].push_back(i); ^ user.cpp:139:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] F[b][j]--; ^ user.cpp:145:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d ",Sol[a].back()); ^ user.cpp:146:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] Sol[a].pop_back(); ^ user.cpp:61:14: warning: unused variable ‘c’ [-Wunused-variable] char a,b,c; ^