Compilare: user.c: In function ‘main’: user.c:37:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(v[i-1]&&v[n+j-1]||v[i-1]==0&&v[n+j-1]==0) ^ user.c:14:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d",&n); ^ user.c:15:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d",&m); ^ user.c:19:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i][j]); ^