Eroare de compilare: main.c:9:6: warning: return type of 'main' is not 'int' [-Wmain] void main(void) ^~~~ main.c: In function 'main': main.c:18:10: warning: implicit declaration of function 'fopen_s' [-Wimplicit-function-declaration] if (!fopen_s(&in, "euclid2.in", "rt")) ^~~~~~~ main.c:20:9: warning: implicit declaration of function 'printf_s' [-Wimplicit-function-declaration] printf_s("Failed to open input file: %d\n", errno); ^~~~~~~~ main.c:34:9: warning: implicit declaration of function 'fscanf_s' [-Wimplicit-function-declaration] if (fscanf_s(in, "%d", &pairCount) < 1) ^~~~~~~~ main.c:58:9: warning: implicit declaration of function 'fprintf_s' [-Wimplicit-function-declaration] fprintf_s(out, "%d\n", j); ^~~~~~~~~ ./ccdilppG.o: In function `main': main.c:(.text.startup+0x47): undefined reference to `fopen_s' main.c:(.text.startup+0x5e): undefined reference to `printf_s' main.c:(.text.startup+0x8e): undefined reference to `fopen_s' main.c:(.text.startup+0xc1): undefined reference to `fscanf_s' main.c:(.text.startup+0xf7): undefined reference to `fscanf_s' main.c:(.text.startup+0x14c): undefined reference to `fprintf_s' main.c:(.text.startup+0x16a): undefined reference to `printf_s' main.c:(.text.startup+0x180): undefined reference to `printf_s' main.c:(.text.startup+0x198): undefined reference to `printf_s' main.c:(.text.startup+0x1b0): undefined reference to `printf_s' collect2: error: ld returned 1 exit status Non zero exit status: 1