Compilare: user.c: In function ‘Adaug’: user.c:18:5: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration] Coada z = (Coada)malloc(sizeof(struct nod)); ^ user.c:18:22: 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:33:5: warning: implicit declaration of function ‘free’ [-Wimplicit-function-declaration] free(z); ^ user.c:33:5: warning: incompatible implicit declaration of built-in function ‘free’ [enabled by default] user.c: In function ‘Citire’: user.c:42:22: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] a[i] = (int*)malloc(sizeof(int)); ^ user.c:48:9: warning: implicit declaration of function ‘realloc’ [-Wimplicit-function-declaration] a[y] = (int*)realloc(a[y],(++a[y][0]+1)*sizeof(int)); ^ user.c:48:22: warning: incompatible implicit declaration of built-in function ‘realloc’ [enabled by default] a[y] = (int*)realloc(a[y],(++a[y][0]+1)*sizeof(int)); ^ user.c: In function ‘Rezolv’: user.c:78:13: warning: variable ‘z’ set but not used [-Wunused-but-set-variable] int i,j,z; ^ user.c:78:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,z; ^