Eroare de compilare: user.c:2: warning: built-in function ‘y1’ declared as non-function user.c:3: error: initializer element is not constant user.c:4: error: initializer element is not constant user.c: In function ‘citire’: user.c:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:17: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:20: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c: In function ‘traseu’: user.c:27: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:27: note: use option -std=c99 or -std=gnu99 to compile your code user.c:31: warning: suggest explicit braces to avoid ambiguous ‘else’ user.c: In function ‘main’: user.c:51: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:52: error: ‘for’ loop initial declarations are only allowed in C99 mode