Compilare: main.cpp: In member function 'int Graph::dykstra(int, int, int, int)': main.cpp:174:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 174 | for(int i = 0 ; i < this->adjacency[current].size() ; i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graph::zeroOneBFS(int)': main.cpp:206:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 206 | for(int i = 0 ; i < this->adjacency[current].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Solution::rusuoaica()': main.cpp:370:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 370 | 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:399:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 399 | for(int i = 0; i < flights.size() ; i++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::dragoni1(std::ifstream&, int, int*)': main.cpp:418:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 418 | for(int i = 1 ; i < costs.size() ; i++){ | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::dragoni2(std::ifstream&, int, int*)': main.cpp:461:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 461 | for(int i = 0 ; i < graf[currentNode].size() ; i++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::apm2MaximumCost(Graph, int, int, int)': main.cpp:541:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 541 | for(int i = 0 ; i < edges.size() ; i++){ | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'int Solution::dragoni2(std::ifstream&, int, int*)': main.cpp:478:1: warning: control reaches end of non-void function [-Wreturn-type] 478 | } | ^ main.cpp: In member function 'int Solution::apm2MaximumCost(Graph, int, int, int)': main.cpp:560:21: warning: 'weight' may be used uninitialized [-Wmaybe-uninitialized] 560 | return weight - 1; | ^ main.cpp:537:9: note: 'weight' was declared here 537 | int weight; | ^~~~~~