Compilare: main.cpp: In function 'void solve(int)': main.cpp:34:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < prim.size() && a >= prim[i]*prim[i]) ~~^~~~~~~~~~~~~ main.cpp:35:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] { if(a % prim[i] == 0 && 1+dp[a/prim[i]].size() > maxi) ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ main.cpp:45:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < prim.size() && a >= prim[i]*prim[i]) ~~^~~~~~~~~~~~~ main.cpp:46:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] { if(a % prim[i] == 0 && dp[a/prim[i]].size() > maxi) ~~~~~~~~~~~~~~~~~~~~~^~~~~~ main.cpp: In function 'void solve3(int, int)': main.cpp:103:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v.size(); i++) ~^~~~~~~~~ main.cpp:113:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<w.size(); i++) v.push_back(w[i]); ~^~~~~~~~~