Compilare: main.cpp: In function 'void read()': main.cpp:12:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < aux.size(); i++) { ~~^~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:24:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i < s.size(); i++) { ~~^~~~~~~~~~ main.cpp:30:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i + 1 + p[i] < s.size() && i - 1 - p[i] >= 0 && s[i + 1 + p[i]] == s[i - 1 - p[i]]) ~~~~~~~~~~~~~^~~~~~~~~~