Compilare: main.cpp: In function 'int main()': main.cpp:142:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<va.size(); i++) ~^~~~~~~~~~ main.cpp:143:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<v.size(); j++) ~^~~~~~~~~ main.cpp:142:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=0; i<va.size(); i++) ^~~ main.cpp:146:8: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' g<<nr; ^ main.cpp:26:17: warning: unused variable 'ok' [-Wunused-variable] int i,li,ls,ok,j; ^~