Compilare: user.c: In function ‘main’: user.c:20:16: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] d[1-i&1][j]=(d[i&1][j-1]+d[i&1][j])%MOD; ^ user.c:21:27: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] fprintf(fout,"%d" ,d[1-n&1][s]); ^ user.c:11:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&n,&k); ^ user.c:14:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&nr); ^