Compilare: main.cpp: In function 'int calculatelps(int, int)': main.cpp:21:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<s[id1].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz+1<s[id1].size() && s[id1][poz+1]!=s[id1][i] && poz){ ~~~~~^~~~~~~~~~~~~~ main.cpp:26:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz+1<s[id1].size() && s[id1][poz+1]==s[id1][i]){ ~~~~~^~~~~~~~~~~~~~ main.cpp:31:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<s[id2].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:32:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(poz+1<s[id1].size() && s[id1][poz+1]!=s[id2][i] && poz){ ~~~~~^~~~~~~~~~~~~~ main.cpp:35:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz+1<s[id1].size() && s[id1][poz+1]==s[id2][i]){ ~~~~~^~~~~~~~~~~~~~ main.cpp:38:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz==s[id1].size()-1){ ~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:97:15: warning: variable 'idsol' set but not used [-Wunused-but-set-variable] int sol=INF,idsol; ^~~~~