Compilare: main.cpp: In function 'void djikstra()': main.cpp:72:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for(int i=0; i<ctc.size(); i++) | ~^~~~~~~~~~~ main.cpp: In function 'void djikstra2()': main.cpp:104:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 104 | for(int i=0; i<ctc.size(); i++) | ~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:255:29: warning: operation on 'dist_sursa_supply[i]' may be undefined [-Wsequence-point] 255 | dist_sursa_supply[i]=distCiclu[i]=dist_supply_dest[i]=dist_sursa_supply[i]=LONG_LONG_MAX; | ^