S1E16：拾遗 | 课后测试题及答案,《带你学C带你飞》（语法篇）,C\C++交流,鱼C论坛

zzn777 发表于 2020-6-20 07:16:18

{:5_109:}

xzzyg 发表于 2020-6-20 16:19:14

0.10
1.0
2.a
3.c=9,b=5,a=21
4.z=(x>0? x:-x)
5.
A
if (size > 12)
{
   cost = cost * 1.05;
}
else
{
flag = 2;
bill = cost * flag;

}
B
if (ibex > 14)
{
      sheds = 3;
}
{sheds = 2;
help = 2 * sheds;}
C
if (score < 0)
{
printf("count = %d\n", count);
}
count++;
scanf("%d", &score);

动动手
0.
#include"stdio.h"
#include"math.h"
int main()
{
int year=1;
double ben=10000.0,rate1=0.1,rate2=0.05,sum1,sum2;
while(1)
{
sum1=ben*(1+rate1*year);
sum2=ben*pow((1+rate2),year);
   if(sum2>sum1)
   {
         break;
   }
   year++;
}
printf("%d年后黑夜超过小甲鱼！\n",year);
printf("小甲鱼资产：%.2llf\n",sum1);
printf("黑夜资产：%.2llf\n",sum2);
return 0;
}
1.0
#include"stdio.h"
#include"math.h"
int main()
{
int year=1;
double sum,rate,expense;
sum=5000000.0;
rate=8.0/100;
expense=500000.0;
while(1)
{
   sum=sum*pow((1+rate),year);
   sum-=expense;
   if(sum<0)
   {
         break;
   }
   year++;
}
printf("%d年后败光家产！\n",year);
return 0;
}
2.0
#include<stdio.h>
#include<math.h>
int main()
{
int i,j;
float sum=0,t;
for(i=1,j=0;1;i=i+2,j++)
{
   //t=pow(-1,j)*(1.0/i);
   sum=sum+pow(-1,j)*(1.0/i);
   if(fabs((1.0/i)-(1.0/i-2))<pow(10,-8))
      {
            break;
      }
}
printf("%d pi= %f\n",i,4*sum);
}

beyaso 发表于 2020-6-20 16:20:27

{:10_333:}

puxizhi 发表于 2020-6-20 20:45:25

0 100
1 10
2 a
3 14 4 4
4 z=x>0?x:-x
5 if(size>12)
{
cost = cost *1.05;
flag = a;
}

bill = cost * flag；

if（ibex>14）
{
sheds = 3;
}
sheds = 2;
help = 2* sheds;

if (score < 0)
{
printf("count = %d\n",count};
}
count++;

0
#include<stdio.h>

int main()
{
float c=0, a=10000,b=10000,d,e,f;

while(1)
{
d=a*10/100;
c=c+d;

e=b+b*5/100;
b=e;

if (b>a+c)
{
break;
}
}

printf("%.2f\n",a+c);
printf("%.2f\n",b);

return 0;
}
1
#include<stdio.h>

int main()
{
float b=4000000,d,e;
int f=0;

while(1)
{

e=(b-500000)+(b-500000)*8/100;
b=e;
f++;

if (b<=0)
{
break;
}
}

printf("%d年之后，败光家产.......\n",f);

return 0;
}
2
#include<stdio.h>

int main()
{
long double a=1.00000,b,d=1.000000;
int c=3,i=1;

for(int count=1000000000;count > 0;count--)
{
b = a- (d/c *1/i);
a = b;
i = -i;
c = c+2;

}
printf("%.8Lf\n",4*a);

return 0;
}
3
#include<stdio.h>

int main()
{
int a=1,b=1,c;

//unsigned long long d=0;

//printf("%d\n",b);
//printf("%d\n",b);

for(int d=3;d<=24;d++)
{
c=a+b;
a=b;
b=c;

//printf("%d\n",c);
}

printf("%d\n",c);

return 0;

}

shier 发表于 2020-6-20 22:46:01

111

萌新爱学习 发表于 2020-6-21 20:52:49

0. 100
1. 11
2. c = 5 b = c a =b
3. b = 3 c = 9 a = 4
4. z = fabs(x)

#include<stdio.h>

int main(){
/*
double money = 4000000;
double p = 0.08;
int i = 0;
while(money>=0){
   money = money - 500000;
   money = money * (1+p);
   i++;
}
printf("%d年后,小甲鱼败光了所有的家产",i);*/
int num = 2;
int i = 0;
for(i==0;i<=24;i++){
   if(i%2==0){
         printf("%i,%d\n",i,num);
         num = num * 2;
   }else{
      printf("%i,%d\n",i,num);

   }
}
printf("%d",num);
}

5678asd 发表于 2020-6-22 12:44:51

2333

BIGBUTTER 发表于 2020-6-22 16:00:00

0:10个
1：10个
2：c
3:a == 10 , b == 10 , c == 4;
4: z = (x > 0 ? x : -x);
5:
A:
if (size > 12)
{
cost = cost * 1.05;
flag = 2;
}
else
{
bill = cost * flag;

}
B:
if (ibex > 14)
{
sheds = 3;
}
else
{
sheds = 2;
help = 2 * sheds;
}
C:
while ((scanf("%d", &score))< 0)
{
printf("count = %d\n", count);

count++;
}

研发部的小黄 发表于 2020-6-22 16:06:13

本帖最后由研发部的小黄于 2020-6-22 16:11 编辑

0、10个A
1、0个B
2、a/b/c
3、A=14、B=5、C=9
4、Z=(X>=0 ?X : -X );
5、
——A
if (size > 12)
{
   cost = cost * 1.05;
   flag = 2;
   bill = cost * flag;
}

——B
if (ibex > 14)
{
      sheds = 3;
      help = 2 * sheds;
}
sheds = 2;
help = 2 * sheds;

——C
while((scanf("%d", &score))>=0)
{
count++;
}
printf("count = %d\n", count);

JackZzz 发表于 2020-6-22 21:34:16

{:5_90:}

Miracle宸翰 发表于 2020-6-22 21:51:01

啊这

WDYWSZGQD 发表于 2020-6-22 23:07:41

LVX123 发表于 2020-6-23 11:55:17

感谢分享

lemonLo_oL 发表于 2020-6-23 17:19:30

mikisayaka 发表于 2020-6-24 13:57:47

巴巴鲁 发表于 2020-6-24 15:56:48

打卡

依风入海 发表于 2020-6-25 09:48:27

看看

风吹鸡蛋壳isme 发表于 2020-6-26 10:27:12

鸡蛋壳

我的老天鹅 发表于 2020-6-27 21:37:59

本帖最后由我的老天鹅于 2020-6-27 21:41 编辑

#include<stdio.h>

int main()
{
int t, m , m1t, m2t;
m1t = 1;
m2t = 1;

for(m = 3 ; m <=24; m++)
{
t = m2t;
m2t = m1t + m2t;
m1t = t;

}
printf("2年后兔子有%d", m2t);
return 0;
}

祺哥儿 发表于 2020-6-28 00:20:02

第一部分
0.10
1.11
2.a=b=c
3. a= 14,b=5 , c=9
4.z=(x>=0?x:-x)
5.
if (size > 12)
   flag = 2;
{
   cost = cost * 1.05;
}
bill = cost * flag;

sheds = 2;
if (ibex > 14)
{
   sheds = 3;
}

help = 2 * sheds;

while（1）
{
scanf("%d", &score);
if (score < 0)
{
printf("count = %d\n", count);
}
count++;
}
************************************
第二部分
#include<stdio.h>
/*int main()
{
int bao,yu,year;
bao=yu=10000;
while(bao<=yu)
{
   bao=bao*1.05;
   yu=yu+1000;
   year++;
}
printf("%d年后，谢宝来的投资额超过小甲鱼！\n",year);
printf("小甲鱼的投资额%d\n",yu);
printf("谢宝来的投资额是%d\n",bao);
}
*/
/*int main()
{
int money=4000000,year=0;
while(money>0)
{
   money=money - 50;
   money=money*1.08;
   year++;
}
printf("第%d年破产",year);

}
*/
/*int main()             /////////此题不会
{
for (int i = 1,a=1,b=1; i < ; i++)
{

}

}
*/
int main()
{
int b=1;
for (int i = 3; i < 25; i++)
{



}

}

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