Compilare: main.cpp: In function 'int main()': main.cpp:18:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0,ok=0;i<v[auxmod].size();i++)if(v[auxmod].at(i)==nr){ok=1; break;} ~^~~~~~~~~~~~~~~~~ main.cpp:21:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=2;i<=len;i++)p*=3; lens=strlen(s); ^~~ main.cpp:21:30: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(i=2;i<=len;i++)p*=3; lens=strlen(s); ^~~~ main.cpp:25:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0,ok=0;j<v[auxmod].size();j++)if(v[auxmod].at(j)==nr){ok=1;break;} ~^~~~~~~~~~~~~~~~~