Eroare de compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:45:75: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((cost[nod].first+1<=cost[t[nod][i]].first && pcc!=t[nod][i] && nodd!=t[nod][i]) || (cost[t[nod][i]].first==0 && pcc!=t[nod][i] && nodd!=t[nod][i])) ^ user.cpp:45:142: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((cost[nod].first+1<=cost[t[nod][i]].first && pcc!=t[nod][i] && nodd!=t[nod][i]) || (cost[t[nod][i]].first==0 && pcc!=t[nod][i] && nodd!=t[nod][i])) ^ user.cpp:53:76: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((cost[nod].first+1<=cost[t[nod][i]].second && pcc!=t[nod][i] && income[nod].first!=t[nod][i]) || (cost[t[nod][i]].second==0 && pcc!=t[nod][i] && income[nod].first!=t[nod][i])) ^ user.cpp:53:157: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((cost[nod].first+1<=cost[t[nod][i]].second && pcc!=t[nod][i] && income[nod].first!=t[nod][i]) || (cost[t[nod][i]].second==0 && pcc!=t[nod][i] && income[nod].first!=t[nod][i])) ^ user.cpp:59:77: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((cost[nod].second+1<=cost[t[nod][i]].second && pcc!=t[nod][i] && income[nod].second!=t[nod][i]) || (cost[t[nod][i]].second==0 && pcc!=t[nod][i] && income[nod].second!=t[nod][i])) ^ user.cpp:59:159: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((cost[nod].second+1<=cost[t[nod][i]].second && pcc!=t[nod][i] && income[nod].second!=t[nod][i]) || (cost[t[nod][i]].second==0 && pcc!=t[nod][i] && income[nod].second!=t[nod][i])) ^ user.cpp: In function ‘int main()’: user.cpp:73:14: error: invalid initialization of reference of type ‘unsigned int&’ from expression of type ‘int’ citeste(n); ^ user.cpp:15:6: error: in passing argument 1 of ‘void citeste(unsigned int&)’ void citeste(unsigned int &numar) ^ user.cpp:74:14: error: invalid initialization of reference of type ‘unsigned int&’ from expression of type ‘int’ citeste(k); ^ user.cpp:15:6: error: in passing argument 1 of ‘void citeste(unsigned int&)’ void citeste(unsigned int &numar) ^ user.cpp:77:18: error: invalid initialization of reference of type ‘unsigned int&’ from expression of type ‘int’ citeste(a); ^ user.cpp:15:6: error: in passing argument 1 of ‘void citeste(unsigned int&)’ void citeste(unsigned int &numar) ^ user.cpp:78:18: error: invalid initialization of reference of type ‘unsigned int&’ from expression of type ‘int’ citeste(b); ^ user.cpp:15:6: error: in passing argument 1 of ‘void citeste(unsigned int&)’ void citeste(unsigned int &numar) ^ user.cpp: In function ‘void citeste(unsigned int&)’: user.cpp:20:45: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIM,stdin),poz=0; ^ user.cpp:25:45: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,DIM,stdin),poz=0;