Compilare: main.cpp: In function 'int main()': main.cpp:96:10: warning: unused variable 'NDP' [-Wunused-variable] nodeDP* NDP = dijkstra(graph, 1); ^~~ main.cpp: In function 'graphMatrix readFile(const char*)': main.cpp:21:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &graph.numNodes, &M); ^ main.cpp:36:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d %d", &A, &B, &C); ^