Compilare: user.c: In function ‘Adaug’: user.c:19:5: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration] Lista z = (Lista)malloc(sizeof(struct nod)); ^ user.c:19:22: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] Lista z = (Lista)malloc(sizeof(struct nod)); ^ user.c: In function ‘Sterg’: user.c:33:9: warning: implicit declaration of function ‘free’ [-Wimplicit-function-declaration] free(z); ^ user.c:33:9: warning: incompatible implicit declaration of built-in function ‘free’ [enabled by default] user.c:39:9: warning: incompatible implicit declaration of built-in function ‘free’ [enabled by default] free(z); ^ user.c: In function ‘main’: user.c:70:5: warning: implicit declaration of function ‘calloc’ [-Wimplicit-function-declaration] Hash = (Lista*)calloc(k,sizeof(struct nod)); ^ user.c:70:20: warning: incompatible implicit declaration of built-in function ‘calloc’ [enabled by default] Hash = (Lista*)calloc(k,sizeof(struct nod)); ^