Compilare: main.cpp: In function 'int main()': main.cpp:33:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int t=1;t<s2.size();t++) ~^~~~~~~~~~ main.cpp:44:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (urm[t]==s[j].size()) ~~~~~~^~~~~~~~~~~~~ main.cpp:85:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<acum.v.size();j++) ~^~~~~~~~~~~~~~ main.cpp:109:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=1;i<sol.size();i++) ~^~~~~~~~~~~ main.cpp:112:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=cost[val1][val2];j<s[val2].size();j++) ~^~~~~~~~~~~~~~~