C Primer Plus 第五章 编程练习 1-8题

#include<stdio.h>
const int TIME = 60;
int main(void)
{
int mins;
printf("PLease Input The Time(MIN):");
scanf("%d",&mins);
while(mins > 0)
{
printf("Now It's %d Hours And %d Mins.\n",mins/TIME,mins%TIME);
printf("PLease Input The Time(MIN):");
scanf("%d",&mins);
}

printf("Done!\n");

return 0;
}

#include<stdio.h>
const int LEVEL = 10;
int main(void)
{
int BeginNumber;
int EndNumber;
printf("Please Input The Any Number:");
scanf("%d",&BeginNumber);
EndNumber = BeginNumber + LEVEL;
while(BeginNumber <= EndNumber)
{
printf("%d ",BeginNumber);
++BeginNumber;
}

return 0;
}

#include<stdio.h>
const int WD = 7;
int main(void)
{
int Days;
printf("Please Input The Days:");
scanf("%d",&Days);
while(Days > 0)
{
printf("%d days are %d weeks , %d days\n", Days , Days/WD ,Days%WD);
printf("Please Input The Days:");
scanf("%d",&Days);
}

return 0;
}

#include<stdio.h>
const double CF = 25.4;
const double FI = 12;   //我对英制单位不了解，我是按 1 inch = 12 feet , 1 feet = 25.4cm的关系来换算的
int main(void)
{
double CMs;
double FEETs;
printf("PLease Input Any Hight By Cm:");
scanf("%lf",&CMs);
while(CMs > 0)
{
FEETs = CMs / CF;
printf("%.1lf cm = %.0lf feet , %.1lf inchs.\n", CMs , FEETs , FEETs/FI);
printf("PLease Input Any Hight By Cm:");
scanf("%lf",&CMs);
}

printf("Done!\n");

return 0;
}

#include<stdio.h>
const int LIMIT = 20;
int main(void)
{
int BeginNumber;
int EndNumber;
int Sums = 0;
printf("PLease Input Any Number:");
scanf("%d",&BeginNumber);
EndNumber = BeginNumber + LIMIT;
while(BeginNumber < EndNumber)
{
Sums += BeginNumber;
++BeginNumber;
}

printf("The Sum is %d.\n",Sums);
}

#include<stdio.h>
const int LIMIT = 20;
int main(void)
{
int BeginNumber;
int EndNumber;
int Sums = 0;
printf("PLease Input Any Number:");
scanf("%d",&BeginNumber);
EndNumber = BeginNumber + LIMIT;
while(BeginNumber < EndNumber)
{
Sums = Sums + BeginNumber*BeginNumber;
++BeginNumber;
}

printf("The Sum is %d.\n",Sums);
}

#include<stdio.h>
void PrintFloat(float fl);
int main(void)
{
float TestNu;
printf("PLease Input A Number To Test:");
scanf("%f",&TestNu);
PrintFloat(TestNu);

return 0;
}
void PrintFloat(float fl)
{
printf("%f\n",fl*fl*fl);
}

#include<stdio.h>
const double FC_1 = 1.8;
const double FC_2 = 32.0;
const double CK = 273.16;
void Temperatures(double Fah);
int main(void)
{
double TemperatureF;
printf("Please Input The Temparetures(F):");
while((scanf("%lf",&TemperatureF) == 1))
{
Temperatures(TemperatureF);
printf("Please Input The Temparetures(F):");
}
printf("Done!\n");

return 0;
}

void Temperatures(double Fah)
{
double Cel = FC_1 * Fah + FC_2;
double Kel = Cel + CK;
printf("%.2lf F = %.2lf C = %.2lf K\n",Fah,Cel,Kel);
}