Compilare: main.cpp: In function 'int main()': main.cpp:59:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<ccr[i].size() && v[ccr[i][j]]<v[st[k]]) ~^~~~~~~~~~~~~~ main.cpp:67:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<ccr[i].size() && v[ccr[i][j]]<v[st[k]]) ~^~~~~~~~~~~~~~ main.cpp:113:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<ccr[i].size() && v[ccr[i][j]]<v[st[k]]) ~^~~~~~~~~~~~~~ main.cpp:121:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<ccr[i].size() && v[ccr[i][j]]<v[st[k]]) ~^~~~~~~~~~~~~~