Compilare: user.c: In function ‘nr’: user.c:19:5: warning: implicit declaration of function ‘snr’ [-Wimplicit-function-declaration] return snr(p-1, doi-two[u]+1, cinci-five[u]+1, u); ^ user.c: In function ‘init’: user.c:16:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘main’: user.c:45:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d", &n); ^ user.c:48:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d", &p); ^