Aplikasi Menghitung Pemakaian air Palanggan

main() { long int a,b,z,x=500,w=250,y=250,biaya; clrscr();
printf("====================================\n"); printf("\ Jumlah meteran :"); scanf("%ld",&a); x=x*a-5000; w=w*a-7500; y=y*a-12500; if(a>=0 && a<11) { z=15000; } else if(a>10 && a<31) { z=15000+x; } else if(a>30 && a<51) { z=15000+x+w; } else { z=15000+x+w+y; } printf("\n Biaya yang harus dibayar : Rp.%ld",z); printf("\n===================================="); printf("\n www.bengkelzend.blogspot.com"); getch(); }