Compilare: main.cpp: In function 'int main()': main.cpp:56:37: warning: variable 'k' set but not used [-Wunused-but-set-variable] pair<pair<int,int>,int> k=key[j]; ^ main.cpp:57:17: warning: unused variable 'nmmmmmm' [-Wunused-variable] int nmmmmmm=0; ^~~~~~~ main.cpp:72:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(LCP(1,i)>=a.size()) ~~~~~~~~^~~~~~~~~~