Compilare: user.c:6: warning: return type of ‘main’ is not ‘int’ user.c: In function ‘citire’: user.c:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:21: 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: In function ‘spirala_p’: user.c:42: warning: unused variable ‘j’ user.c:42: warning: ‘ultim’ may be used uninitialized in this function user.c:42: warning: ‘g’ may be used uninitialized in this function user.c:42: warning: ‘f’ may be used uninitialized in this function