Compilare: user.c: In function ‘main’: user.c:18:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&t); ^~~~~~~~~~~~~~~~~~ user.c:21:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(n,121,fi); ^~~~~~~~~~~~~~~