Compilare: main.cpp: In function 'void solve(std::deque<std::pair<int, int> >)': main.cpp:13:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<d.size(); i++) ~^~~~~~~~~ main.cpp:36:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(st<=bin.size()-1) ~~^~~~~~~~~~~~~~ main.cpp:15:13: warning: unused variable 'x' [-Wunused-variable] int x=d[i].first; ^ main.cpp: In function 'int main()': main.cpp:67:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1; i<=4; i++) ^~~ main.cpp:69:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout<<nr; ^~~~