Compilare: user.c: In function ‘Inserare’: user.c:17:9: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration] nod * nou = (nod*)malloc(sizeof(nod)); ^ user.c:17:27: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] nod * nou = (nod*)malloc(sizeof(nod)); ^ user.c:25:27: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] nod * nou = (nod*)malloc(sizeof(nod)); ^ user.c:46:35: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] nod * nou = (nod*)malloc(sizeof(nod)); ^ user.c:53:27: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] nod * nou = (nod*)malloc(sizeof(nod)); ^ user.c: In function ‘main’: user.c:63:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen(InFile,"r",stdin); ^ user.c:64:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen(OutFile,"w",stdout); ^ user.c:68:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&N); ^ user.c:71:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^