Compilare: main.cpp: In function 'int main()': main.cpp:41:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < v[i].size(); j++) ~~^~~~~~~~~~~~~ main.cpp:64:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < w[i].size(); j++) ~~^~~~~~~~~~~~~ main.cpp:70:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(w[i].size()+bad[pq.top()] == cnt) ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ main.cpp:75:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < w[i].size(); j++) ~~^~~~~~~~~~~~~