Compilare: user.c: In function ‘Adaug’: user.c:19:5: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration] Coada z = (Coada)malloc(sizeof(struct nod)); ^ user.c:19:22: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] Coada z = (Coada)malloc(sizeof(struct nod)); ^ user.c: In function ‘Sterg’: user.c:34:5: warning: implicit declaration of function ‘free’ [-Wimplicit-function-declaration] free(z); ^ user.c:34:5: warning: incompatible implicit declaration of built-in function ‘free’ [enabled by default] user.c: In function ‘Citire’: user.c:43:22: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] A[i] = (int*)malloc(sizeof(int)); ^ user.c:49:9: warning: implicit declaration of function ‘realloc’ [-Wimplicit-function-declaration] A[x] = (int*)realloc(A[x],(++A[x][0]+1)*sizeof(int)); ^ user.c:49:22: warning: incompatible implicit declaration of built-in function ‘realloc’ [enabled by default] A[x] = (int*)realloc(A[x],(++A[x][0]+1)*sizeof(int)); ^