Compilare: main.cpp: In function 'void citire()': main.cpp:30:17: warning: unused variable 'j' [-Wunused-variable] 30 | int x,y,c,i,j,w; | ^ main.cpp: In function 'void bellman_ford(int, int, int&)': main.cpp:70:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<drum>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for (i=0;i<g[vfc].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:52:13: warning: unused variable 'x' [-Wunused-variable] 52 | int i,j,x; | ^ main.cpp: In function 'int main()': main.cpp:106:9: warning: unused variable 'r' [-Wunused-variable] 106 | int r; | ^