Compilare: main.cpp: In function 'void compute()': main.cpp:15:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < s.size(); ++i){ ~~^~~~~~~~~~ main.cpp:20:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < pref.size(); ++i){ ~~^~~~~~~~~~~~~ main.cpp:25:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < suff.size(); ++i){ ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:76:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < s.size(); ++i){ ~~^~~~~~~~~~ main.cpp:58:30: warning: variable 'pr' set but not used [-Wunused-but-set-variable] int dp[100100] = {}, pr[100100] = {}, su[100100] = {}; ^~