Compilare: user.c: In function ‘main’: user.c:72:5: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration] char *C = (char*)malloc(MAX); ^ user.c:72:22: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] char *C = (char*)malloc(MAX); ^ user.c:74:5: warning: implicit declaration of function ‘getline’ [-Wimplicit-function-declaration] getline(&C, &max, fin); ^ user.c:96:16: warning: ‘ej’ may be used uninitialized in this function [-Wmaybe-uninitialized] else printf("%d", Md[ei][ej]); ^ user.c:96:16: warning: ‘ei’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.c:93:24: warning: ‘sj’ may be used uninitialized in this function [-Wmaybe-uninitialized] Md[si][sj] = Mn[si][sj]; ^ user.c:93:24: warning: ‘si’ may be used uninitialized in this function [-Wmaybe-uninitialized]