Compilare: main.cpp: In member function 'int Graph::dijkstra(int, int, int, int)': main.cpp:186:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 186 | for(int i = 0 ; i < this->adjacency[current].size() ; i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<std::pair<int, int> > Graph::dijkstraPathAndCost(int)': main.cpp:226:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 226 | for(int i = 0 ; i < this->adjacency[current].size() ; i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graph::zeroOneBFS(int)': main.cpp:254:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 254 | for(int i = 0 ; i < this->adjacency[current].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Solution::rusuoaica()': main.cpp:422:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 422 | for(int i = 0 ; i < newEdgeList.size() ; i++){ | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::findCheapestPrice(int, std::vector<std::vector<int> >&, int, int, int)': main.cpp:451:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 451 | for(int i = 0; i < flights.size() ; i++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::dragoni1(std::ifstream&, int, int*)': main.cpp:470:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 470 | for(int i = 1 ; i < costs.size() ; i++){ | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::dragoni2(std::ifstream&, int, int*)': main.cpp:513:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 513 | for(int i = 0 ; i < graf[currentNode].size() ; i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::jzzhuAndCities()': main.cpp:733:1: warning: no return statement in function returning non-void [-Wreturn-type] 733 | } | ^ main.cpp: In member function 'int Solution::dragoni2(std::ifstream&, int, int*)': main.cpp:530:1: warning: control reaches end of non-void function [-Wreturn-type] 530 | } | ^ main.cpp: In member function 'int Solution::apm2MaximumCost(Graph&, int, int, int)': main.cpp:610:21: warning: 'weight' may be used uninitialized [-Wmaybe-uninitialized] 610 | return weight - 1; | ^ main.cpp:590:9: note: 'weight' was declared here 590 | int weight; | ^~~~~~ main.cpp: In member function 'void Solution::trilant()': main.cpp:709:18: warning: 'index' may be used uninitialized [-Wmaybe-uninitialized] 709 | trilantOutput(g,pathCostC,index); | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:696:9: note: 'index' was declared here 696 | int index,minimum = INT_MAX; | ^~~~~