c语言第三章编程题,计算机二级C语言教程第三章课后编程题

关于课后编程

3.16课后练习改错

#include

main()

{

double a,b,c,s,v;

printf("input a, b, c:");

scanf("%lf%lf%lf",&a,&b,&c);

s=a*b;

v=a*b*c;

printf("a=%.6f,b=%.6f,c=%.6f\n",a,b,c);

printf("s=%.6f,v=%.6f\n",s,v);

}

3.17把分钟化成小时分

#include

main()

{

int a,hour,min;

printf("please enter the number of minutes:");

scanf("%d",&a);

hour=a/60;

min=a%60;

printf("Conversion result is %d：%d\n",hour,min);

}

3.18

#include

main()

{

int a,b,c,d;

printf("please enter two number:");

scanf("%d%d",&a,&b);

c=a/b;

d=a%b;

printf("the remainder arithmetic is %d\nthe arithmetic quotient is %d\n",c,d);

}

3.19求平均数并且保留两位小数

#include

main()

{

double a,b,c,ave;

printf("please enter the three double-precision:\n");

scanf("%lf%lf%lf",&a,&b,&c);

ave=(a+b+c)/3;

ave=ave*10;