Compilare: main.c: In function 'dfs_edges': main.c:83:17: warning: 'return' with no value, in function returning non-void [-Wreturn-type] 83 | return; | ^~~~~~ main.c:79:5: note: declared here 79 | int dfs_edges(graphEdges graph, int currentNode, int* visited) | ^~~~~~~~~ main.c: In function 'main': main.c:122:24: warning: returning 'void *' from a function with return type 'int' makes integer from pointer without a cast [-Wint-conversion] 122 | return NULL; | ^~~~