Compilare: user.c: In function ‘main’: user.c:21: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:23: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:26: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:27: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:43: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:44: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:67: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:68: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:69: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:70: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:10: warning: ‘Af’ may be used uninitialized in this function user.c:10: warning: ‘Cf’ may be used uninitialized in this function user.c:10: warning: ‘Df’ may be used uninitialized in this function user.c:10: warning: ‘Bf’ may be used uninitialized in this function user.c:9: warning: ‘temp’ may be used uninitialized in this function