#include <stdio.h>
main(){
int x; z;
float y;
puts("gia na synexiseis patise 1\n");
scanf("%d",&x);
if(x==1){
printf("as synexisoume\n");
printf("dose to onoma sou\n");
scanf("%f",&y);
printf("%f tora simplirose to pinaka\n",&y);
struct pinakas
{
char fn[20];
char ln[20];
int am[10];
float hg[5];
};}
printf("%f i eggrafi sou olokliro8ike me epitixia\n",&y);
printf("an 8es na deis to pinaka me to programma patise 2\n");
return 0;}

In function 'main':
Line 3: error: 'z' undeclared (first use in this function)
Line 3: error: (Each undeclared identifier is reported only once
Line 3: error: for each function it appears in.)