Compilare: user.c: In function ‘main’: user.c:81:5: warning: statement with no effect [-Wunused-value] for(i-1;i>=0;i--) ^ user.c:21:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d",&n,&k); ^ user.c:22:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d",&v[0][0],&v[0][1],&v[0][2]); ^ user.c:23:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d",&ef,&lf,&cf); ^ user.c:37:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d",&e,&l,&c); ^