Compilare: main.cpp:11:9: warning: #pragma once in main file 11 | #pragma once | ^~~~ main.cpp: In function 'int main()': main.cpp:80:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int i=0;i<x.lcp.size();i++) | ~^~~~~~~~~~~~~