Eroare de compilare: user.c:1:18: error: cstdio: No such file or directory user.c:2:19: error: cstdlib: No such file or directory user.c:4: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token user.c: In function 'main': user.c:15: error: 'ncin' undeclared (first use in this function) user.c:15: error: (Each undeclared identifier is reported only once user.c:15: error: for each function it appears in.) user.c:15: warning: implicit declaration of function 'fopen' user.c:16: error: 'ncout' undeclared (first use in this function) user.c:18: warning: implicit declaration of function 'fgetc' user.c:18: error: 'EOF' undeclared (first use in this function) user.c:34: warning: implicit declaration of function 'fprintf' user.c:34: warning: incompatible implicit declaration of built-in function 'fprintf' user.c:35: warning: implicit declaration of function 'fclose' user.c:37:2: warning: no newline at end of file