2023年全国计算机二级C语言程序改错题.doc

目录

题目一前 N 项和问题 .......................................................................................................................3

题目二 SS 字符串问题 .....................................................................................................................4

题目三 变量互换问题 1 ..................................................................................................................4

题目三 变量互换问题 2 ..................................................................................................................5

题目三 变量互换问题 3 ..................................................................................................................5

题目四 最大公约数问题 .................................................................................................................6

题目五 长数变短数 1 ......................................................................................................................7

题目五 长数变短数 2 ......................................................................................................................7

题目五 长数变短数 9 ....................................................................................................................12

题目六斐波拉契数列 .....................................................................................................................13

题目七 链表 1 ................................................................................................................................14

题目七 链表 2 ................................................................................................................................15

题目七 链表 3 ................................................................................................................................16

题目七 链表 4 ................................................................................................................................17

题目八非素数问题 .........................................................................................................................19

题目九 排序问题 1 ........................................................................................................................19

题目九 排序问题 2 ........................................................................................................................20

题目九 排序问题 3 ........................................................................................................................21

题目十平均值问题 2 ......................................................................................................................27

题目十平均值问题 3 ......................................................................................................................28

题目十平均值问题 4 ......................................................................................................................29

题目十平均值问题 5 ......................................................................................................................30

题目十一字符串连接 1 ..................................................................................................................30

题目十一字符串连接 2 ..................................................................................................................31

题目十一字符串连接 3 ..................................................................................................................32

题目十一字符串连接 4 ..................................................................................................................32

题目十二求和问题 1 ......................................................................................................................33

题目十二求和问题 2 ......................................................................................................................34

题目十二求和问题 9 ......................................................................................................................39

题目十二求和问题 10 ....................................................................................................................40

题目十二求和问题 11 ....................................................................................................................41

题目十二求和问题 12 ....................................................................................................................42

题目十二求和问题 13 ....................................................................................................................42

题目十二求和问题 19 ....................................................................................................................46

题目十三整数问题 .........................................................................................................................47

题目十四字符串逆置 .....................................................................................................................48

题目十五进制转换 1 ......................................................................................................................48

题目十五进制转换 2 ......................................................................................................................49

题目十六素数问题 1 ......................................................................................................................50

题目十六素数问题 2 ......................................................................................................................50

题目十六素数问题 3 ......................................................................................................................51

题目十六素数问题 4 ......................................................................................................................52

题目十六素数问题 5 ......................................................................................................................53

题目二十一 数组问题 1 ................................................................................................................58

题目二十一 数组问题 2 ................................................................................................................59

题目二十一 数组问题 3 ................................................................................................................60

题目二十二求平方根问题 .............................................................................................................61

题目二十三短字符串变长字符串 1 ..............................................................................................61

题目二十四字符串 s 问题 3...........................................................................................................66

题目二十五求方程的根..................................................................................................................67

题目二十六求阶乘 1 ......................................................................................................................68

题目二十六求阶乘 2.......................................................................................................................69

题目二十六求阶乘 3.......................................................................................................................69

题目二十七 方阵问题....................................................................................................................70

题目二十八查找字符串中某元素的数目......................................................................................71

题目二十九最大值问题 1...............................................................................................................72

题目二十九最大值问题 2...............................................................................................................72

题目二十九最大值问题 3...............................................................................................................73

题目三十一：计算数字位数的问题 4...........................................................................................80

题目三十二记录字母 数字个数问题 1.........................................................................................81

题目三十二记录字母 数字个数问题 2.........................................................................................82

题目三十二记录字母 数字个数问题 3.........................................................................................83

题目三十二记录字母 数字个数问题 4.........................................................................................83

题目一前N项和问题

．下列给定程序中函数fun的功能是：求出如下分数序列的前n项之和。和值通过函数值

返回。

例如，若n＝5，则应输出8.391667。

请改正程序中的错误，使其得出对的的结果。

/************found************/

s = s + (Double)a / b;

c = a; a = a + b; b = c;

}

return s;

}

main( )

{ int n = 5;

printf( "\nThe value of function is: %lf\n", fun ( n ) );