Compilare: user.cpp: In function ‘int main()’: user.cpp:82:39: warning: overflow in implicit constant conversion [-Woverflow] for(int i = 1; i <= n; i ++) c[i] = oo, fat[i] = i; ^ user.cpp:106:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < S.size(); i ++) { ^ user.cpp:81:9: warning: unused variable ‘k’ [-Wunused-variable] int k = 1, C = 0; ^