Compilare: main.cpp: In function 'int main()': main.cpp:114:6: warning: unused variable 'cost' [-Wunused-variable] int cost = 0; ^~~~ main.cpp: In function 'graphEdges citeste_edges(const char*)': main.cpp:64:59: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(ptr, "%d %d", &graphE.nr_noduri, &graphE.nr_edges); ^ main.cpp:68:80: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(ptr, "%d %d", &graphE.lista_edge[i].left, &graphE.lista_edge[i].right); ^