Eroare de compilare: main.c: In function 'main': main.c:6:2: warning: implicit declaration of function 'fopen_s' [-Wimplicit-function-declaration] fopen_s(&fin, "adunare.in", "r"); ^~~~~~~ main.c:15:2: warning: implicit declaration of function 'fscanf_s' [-Wimplicit-function-declaration] fscanf_s(fin, "%d", &a); ^~~~~~~~ ./ccRUzKJU.o: In function `main': main.c:(.text.startup+0x2b): undefined reference to `fopen_s' main.c:(.text.startup+0x41): undefined reference to `fopen_s' main.c:(.text.startup+0x64): undefined reference to `fscanf_s' main.c:(.text.startup+0x78): undefined reference to `fscanf_s' collect2: error: ld returned 1 exit status Non zero exit status: 1