Compilare: main.cpp: In function 'int lcp(int, int)': main.cpp:13:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cur==s[i].size() or cur==s[j].size()) ~~~^~~~~~~~~~~~~ main.cpp:13:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cur==s[i].size() or cur==s[j].size()) ~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:40:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(d[i][k]>d[i-1][j]-2*lcp(j,k)+2*s[k].size()){ ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~