#include <stdio.h>
#include <math.h>
int main()
{
float price, area, yir, mir; // 单价、面积、年利率、月利率
float interest, loan; // 利息、贷款总额
float ave_repay, down_payment; // 月均还款、首期付款
float total_price, total_repay; // 房款总额、还款总额
int ratio, time; // 按揭成数、按揭年数
printf("请输入单价(元/平方):");
scanf("%f", &price);
printf("请输入面积:");
scanf("%f", &area);
printf("请输入按揭成数:");
scanf("%d", &ratio);
printf("请输入按揭年数:");
scanf("%d", &time);
printf("请输入当前基准利率:");
scanf("%f", &yir);
total_price=price*area;
down_payment=total_price*(1-0.1*ratio);
loan=total_price*ratio*0.1;
mir=yir/12/100;
time=time*12;
ave_repay=loan*((mir*pow(1+mir,time))/(pow(1+mir,time)-1));
interest=time*ave_repay-loan;
total_repay=loan+interest;
printf("========报告结果========\n");
printf("房款总额:%.2f\n", total_price);
printf("首期付款:%.2f\n", down_payment);
printf("贷款总额:%.2f\n", loan);
printf("还款总额:%.2f\n", total_repay);
printf("支付利息:%.2f\n", interest);
printf("月均还款:%.2f\n", ave_repay);
return 0;
}
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