Computer Programming Test Answer [Method,Array]

#include <stdio.h>
main() {
 
int a,b,c;
float d[3],e[3],g=0,z=0;
char f[3] = {'a','b','c'};
 
for (a=1;a<=2;a++) {
	printf("Person no. %d \n",a);
	for (b=1;b<=3;b++) {
		printf("Enter amount of piece %c >>> ",f[b-1]);
		scanf("%f",&d[b-1]);
		printf("Enter price<baht> >>> ");
		scanf("%f",&e[b-1]);
		g = g+(e[b-1]*d[b-1]);
		printf("Price of %c is %.2f\n",f[b-1],e[b-1]*d[b-1]);
	}
	printf("--------- Total's person 1 %.2f-------------\n",g);
	z = z+g;
	}
printf("************ Two person are %.2f******************\n",z);
}

#include <stdio.h>
int function1 (int x,int y) {
	int c;
	c = (x+y)*100;
	return(c);
}
 
main() {
	int a,x,y;
	printf("Enter Number I >>>> ");
	scanf("%d",&x);
	printf("Enter Number II >>>>>");
	scanf("%d",&y);
	a = function1(x,y);
	if (x+y>=50) {
 
		printf("Function 1 (sum*100) is %d\n",a);
	} 
}