#include <stdio.h>
float tong_tien( int n) {
float sotien= 0 ;
if ( n > 300 ) {
sotien = 2.25 * 100 + 3.75 * 200 + ( n- 300 ) * 5.35 + 350 ;
}
else if ( n> 100 && n<= 300 ) {
sotien = 2.25 * 100 + ( n- 100 ) * 3.75 + 350 ;
}
else {
sotien = 2.25 * n + 350 ;
}
return ( sotien+ sotien* 0.1375 ) ;
}
int main( void ) {
int sodien;
printf ( "Người tiêu dùng số: 123456789\n " ) ; printf ( "Tên người tiêu dùng: Rahul\n " ) ; printf ( "Số đơn vị tiêu thụ: %d\n " , sodien
) ; printf ( "Số tiền hóa đơn: %.3f\n " , tong_tien
( sodien
) ) ; printf ( "Ngày đến hạn: 20/11/2018" ) ;
return 0 ;
}
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