Compilare: main.cpp: In function 'void solve()': main.cpp:81:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ans.size();i++) ~^~~~~~~~~~~ main.cpp:77:22: warning: 'pct2' may be used uninitialized in this function [-Wmaybe-uninitialized] ans.push_back({pct1,pct2}); ~~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:77:22: warning: 'pct1' may be used uninitialized in this function [-Wmaybe-uninitialized]