Eroare de compilare: user.c: In function ‘main’: user.c:24:2: warning: implicit declaration of function ‘fopen_s’ [-Wimplicit-function-declaration] fopen_s(&in, "lgput.in", "r"); ^ user.c:26:2: warning: implicit declaration of function ‘fscanf_s’ [-Wimplicit-function-declaration] fscanf_s(in, "%d %d", &alap, &hat); ^ user.c:29:2: warning: implicit declaration of function ‘fprintf_s’ [-Wimplicit-function-declaration] fprintf_s(out , "%d", alap); ^ /tmp/cc783PTb.o: In function `main': user.c:(.text.startup+0x22): undefined reference to `fopen_s' user.c:(.text.startup+0x3e): undefined reference to `fopen_s' user.c:(.text.startup+0x62): undefined reference to `fscanf_s' user.c:(.text.startup+0xd6): undefined reference to `fprintf_s' collect2: error: ld returned 1 exit status