第九题
#include<stdio.h>
int SumOfSquare(int min , int max);
int main(void)
{
int MaxInt;
int MinInt;
printf("PLease Input UpperLint Number:");
scanf("%d",&MaxInt);
printf("PLease Input LowerLint Number:");
scanf("%d",&MinInt);
while(MinInt < MaxInt)
{
printf("The Sums Of The Qquares From %d to %d is %d.\n",MinInt,MaxInt,SumOfSquare(MinInt,MaxInt));
printf("PLease Input UpperLint Number:");
scanf("%d",&MaxInt);
printf("PLease Input LowerLint Number:");
scanf("%d",&MinInt);
}
printf("Done.\n");
return 0;
}
int SumOfSquare(int min , int max)
{
int sums = 0;
for(int i = min ; i <= max ; ++i)
sums += i*i;
return sums;
}
第十题
#include<stdio.h>
const int Len = 8;
int main(void)
{
int ShowInt[Len];
for(int i = 0 ; i < Len ; ++i)
{
printf("PLease Enter %dth Ingeter:",i+1);
scanf("%d",ShowInt+i);
}
for (int i = Len-1 ; i >= 0 ; --i)
printf("%d",ShowInt[i]);
return 0;
}
第十一题
#include<stdio.h>
const double LIMITS = 998.0;
const double PT = 1.0;
enum Symbol {plus,minus}; // :)
double SumOfList(double limits, enum Symbol S);
int main(void)
{
double limit;
enum Symbol PL = plus;
enum Symbol MI = minus;
printf("Please Input Any Integer:");
scanf("%lf",&limit);
while(limit <= LIMITS)
{
printf("Sum(plus) is %lf\n",SumOfList(limit,PL));
printf("Sum(minus) is %lf\n",SumOfList(limit,MI));
printf("Please Input Any Integer:");
scanf("%lf",&limit);
}
return 0;
}
double SumOfList(double limits , enum Symbol S)
{
double sums = 0;
for(double i = PT ; i <= limits ; i+=1.0)
{
if((int)i%2 == 1)
sums += PT/i;
if((int)i%2 == 0)
{
if(S == plus)
sums += PT/i;
if(S == minus)
sums -= PT/i;
}
}
return sums;
}
第十二题
#include<stdio.h>
#include<math.h>
const int Len = 8;
int main(void)
{
int arr[Len];
for(int i = 0 ; i < Len ; ++i)
arr[i] = pow(2,i);
int counts = 0;
do
{
printf("%d\n",arr[counts]);
++counts;
}while(counts<Len);
return 0;
}
第十三题
#include<stdio.h>
const int LEN = 8;
int main(void)
{
double CustomArr[LEN];
double SumArr[LEN];
for(int i = 0 ; i < LEN ; ++i)
{
printf("Please Input %dth:",i+1);
scanf("%lf",CustomArr+i);
}
SumArr[0] = CustomArr[0];
for(int i = 1 ; i < LEN ; ++i)
SumArr[i] = SumArr[i-1] + CustomArr[i];
for(int i = 0 ; i < LEN ; ++i)
printf("%6.2lf",CustomArr[i]);
printf("\n"); // For \n
for(int i = 0 ; i < LEN ; ++i)
printf("%6.2lf",SumArr[i]);
return 0;
}
第十四题
#include<stdio.h>
const int MaxLen = 255;
int main(void)
{
char WordList[MaxLen];
int Len = 0;
printf("Please Input Any Word:");
do
{
scanf("%c",WordList+Len);
++Len;
}
while(WordList[Len-1] != '\n' && Len <= MaxLen); //input
printf("Change List Of Word:\n"); //output
for(int i = Len-1 ; i >=0 ; --i)
printf("%c",WordList[i]);
return 0;
}
第十五题
#include<stdio.h>
const double Capital = 100;
const double Interest_Daphne = 0.1;
const double Interest_Deirdre = 0.05;
int main(void)
{
int years = 0;
double Daphne = Capital;
double Deirdre = Capital;
do
{
++years;
Daphne += Capital * Interest_Daphne;
Deirdre = Deirdre * (1 + Interest_Deirdre);
}
while(Deirdre <= Daphne);
printf("%d Years Later ,Deridre Get %.2lf$,Daphne Get %.2lf$.",years,Deirdre,Daphne);
return 0;
}
第十六题
#include<stdio.h>
const double GetInterest = 1.08;
const double Cost = 100000;
int main(void)
{
double Capital = 1000000;
int years = 0;
do
{
++years;
Capital *=GetInterest;
Capital -= Cost;
}
while(Capital >= 0);
printf("%d Years Later, He Cost Capital.",years);
return 0;
}
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