下列函数的功能为________。void Exchange(int *p1, int *p2){ int p; p = *p1; *p1 = *p2; *p2 = p;}
标签：C语言程序设计精髓
声明语句int (*p)();的含义是________。
声明语句int *f();中f的含义是________。
">下面程序的功能是用函数编程实现两个数组中对应元素值的交换。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。程序的运行结果示例：Input array size(n<=10):5↙Input array a:1 2 3 4 5↙Input array b:6 7 8 9 10↙Output array a: 6 7 8 9 10Output array b: 1 2 3 4 5#include
#define N 10
void ReadData(int a[], int n);
void PrintData(int a[], int n);
void Swap(int *x, int *y);
int main()
{
int a[N], b[N], i, n;
printf("Input array size(n<=10):");
scanf("%d", &n);
printf("Input array a:");
ReadData(a, n);
printf("Input array b:");
ReadData(b, n);
for (i=0; i<n; i++)
{
Swap(____________);
}
printf("Output array a:");
PrintData(a, n);
printf("Output array b:");
PrintData(b, n);
return 0;
}
/* 函数功能：输入数组a的n个元素值 */
void ReadData(int a[], int n)
{
int i;
for (i=0; i<n; i++)
{
scanf("%d", &a[i]);
}
}
/* 函数功能：输出数组a的n个元素值 */
void PrintData(int a[], int n)
{
int i;
for (i=0; i<n; i++)
{
printf("%5d", a[i]);
}
printf("\n");
}
/* 函数功能：两整数值互换 */
void Swap(int *x, int *y)
{
int temp;
____________;
____________;
____________;
}
![下面程序的功能是用函数编程实现两个数组中对应元素值的交换。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。程序的运行结果示例：Input array size(n<=10):5<strong>↙</strong>Input array a:1 2 3 4 5<strong>↙</strong>Input array b:6 7 8 9 10<strong>↙</strong>Output array a: 6 7 8 9 10Output array b: 1 2 3 4 5<code>#include
#define N 10
void ReadData(int a[], int n);
void PrintData(int a[], int n);
void Swap(int *x, int *y);
int main()
{
int a[N], b[N], i, n;
printf(](http://www.catpuzi.com/wp-content/themes/Git-alpha/timthumb.php?src=http://www.catpuzi.com/wp-content/themes/Git-alpha/assets/img/pic/1.jpg&h=160&w=260&q=90&zc=1&ct=1)
" />
给出下面程序的运行结果。#include
int main(void)
{
static int x[] = {1,2,3};
int s = 1, i, *p = x;
for (i=0; i<3; i++)
{
s*= *(p + i);
}
printf("%d\n", s);
return 0;
}
">从键盘任意输入10个整数，计算并输出最大值和最小值及其它们在数组中的下标位置。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。程序运行结果示例1：Input 10 numbers:1 2 3 4 5 6 7 8 9 10↙max=10,pos=9min=1,pos=0程序运行结果示例2：Input 10 numbers:2 4 5 6 8 10 1 3 5 7 9↙max=10,pos=5min=1,pos=6#include
int FindMax(int a[], int n, int *pMaxPos);
int FindMin(int a[], int n, int *pMinPos);
int main()
{
int a[10], maxValue, maxPos, minValue, minPos, i;
printf("Input 10 numbers:");
for (i=0; i<10; i++)
{
scanf("%d", &a[i]); // 输入10个数
}
maxValue = FindMax(a, 10, _________); // 找最大值及其所在下标位置
minValue = FindMin(a, 10, _________); // 找最小值及其所在下标位置
printf("max=%d,pos=%d\n", maxValue, maxPos);
printf("min=%d,pos=%d\n", minValue, minPos);
return 0;
}
//函数功能：求有n个元素的整型数组a中的最大值及其所在下标位置，函数返回最大值
int FindMax(int a[], int n, int *pMaxPos)
{
int i, max;
max = a[0]; //假设a[0]为最大值
__________; //假设最大值在数组中的下标位置为0
for (i=1; i max)
{
max = a[i];
__________; //pMaxPos指向最大值数组元素的下标位置
}
}
return max ;
}
//函数功能：求有n个元素的整型数组a中的最小值及其所在下标位置，函数返回最小值
int FindMin(int a[], int n, int *pMinPos)
{
int i, min;
min = a[0]; //假设a[0]为最小
__________; //假设最小值在数组中的下标位置为0
for (i=1; i<10; i++)
{
if (a[i] < min)
{
min = a[i];
__________; //pMinPos指向最小值数组元素的下标位置
}
}
return min ;
}
">采用梯形法编程实现在积分区间[a,b]内计算下面两个函数的定积分。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。程序运行结果示例:y1=1.333350y2=1.151212#include
float Fun1(float x);
float Fun2(float x);
float Integral(float (*f)(float), float a, float b);
int main()
{
float y1, y2;
y1 = Integral(Fun1, 0.0, 1.0);
y2 = Integral(Fun2, 0.0, 3.0);
printf("y1=%f\ny2=%f\n", y1, y2);
return 0;
}
/* 函数功能：计算函数1+x*x的函数值 */
float Fun1(float x)
{
return 1 + x * x;
}
/* 函数功能：计算函数x/(1+x*x)的函数值 */
float Fun2(float x)
{
return x / (1 + x * x);
}
/* 函数功能：用梯形法计算函数的定积分 */
float Integral(float (*f)(float), float a, float b)
{
float s, h;
int n = 100, i;
s = __________;
h = __________;
for (i=1; i<n; i++)
{
s += __________;
}
return __________;
}
![采用梯形法编程实现在积分区间[a,b]内计算下面两个函数的定积分。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。程序运行结果示例:y1=1.333350y2=1.151212<code>#include
float Fun1(float x);
float Fun2(float x);
float Integral(float (*f)(float), float a, float b);
int main()
{
float y1, y2;
y1 = Integral(Fun1, 0.0, 1.0);
y2 = Integral(Fun2, 0.0, 3.0);
printf(](http://www.catpuzi.com/wp-content/themes/Git-alpha/timthumb.php?src=http://edu-image.nosdn.127.net/E2F42E423A1E38AFBC0581BA146D1871.jpg?imageView&thumbnail=520x520&quality=100&h=160&w=260&q=90&zc=1&ct=1)
" />
">下面程序的功能是输入某年某月某日，计算并输出它是这一年的第几天。程序的运行结果如下：Please enter year, month, day:2014,12,29↙yearDay = 363按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。#include
int DayofYear(int year, int month, int day);
int dayTab[2][13] = {{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31}};
int main()
{
int year, month, day, yearDay;
printf("Please enter year, month, day:");
scanf("%d,%d,%d", &year, &month, &day);
yearDay = DayofYear(year, month, day);
printf("yearDay = %d\n", yearDay);
return 0;
}
/* 函数功能：对给定的某年某月某日，计算并返回它是这一年的第几天 */
int DayofYear(int year, int month, int day)
{
int i, leap;
leap = ________________________; /* 若year为闰年，即leap值为1，则用第1行元素dayTab[1][i]计算；
否则leap值为0，用第0行dayTab[0][i]计算 */
for (i=1; _______; i++)
{
day = ________________;
}
return day; /* 返回计算出的day的值 */
}
![下面程序的功能是输入某年某月某日，计算并输出它是这一年的第几天。程序的运行结果如下：Please enter year, month, day:2014,12,29↙yearDay = 363按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。<code>#include
int DayofYear(int year, int month, int day);
int dayTab[2][13] = {{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31}};
int main()
{
int year, month, day, yearDay;
printf(](http://www.catpuzi.com/wp-content/themes/Git-alpha/timthumb.php?src=http://www.catpuzi.com/wp-content/themes/Git-alpha/assets/img/pic/11.jpg&h=160&w=260&q=90&zc=1&ct=1)
" />
">下面程序的功能是从键盘输入10个整数，用函数编程实现计算其最大值和最小值，并互换它们所在数组中的位置。程序运行结果如下：Input n(n<=10):10↙Input 10 Numbers:1 4 3 0 –2 6 7 2 9 -1 ↙Exchange results: 1 4 3 0 9 6 7 2 -2 -1按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。#include
void ReadData(int a[], int n);
void PrintData(int a[], int n);
void MaxMinExchang(int a[], int n);
void Swap(int *x, int *y);
int main()
{
int a[10], n;
printf("Input n(n<=10):");
scanf("%d", &n);
printf("Input %d numbers:", n);
ReadData(a, n);
MaxMinExchang(a, n);
printf("Exchange results:");
PrintData(a, n);
return 0;
}
/* 函数功能：输入数组a的n个元素值 */
void ReadData(int a[], int n)
{
int i;
for (i=0; i<n; i++)
{
scanf("%d", &a[i]);
}
}
/* 函数功能：输出数组a的n个元素值 */
void PrintData(int a[], int n)
{
int i;
for (i=0; i<n; i++)
{
printf("%5d", a[i]);
}
printf("\n");
}
/* 函数功能：将数组a中的最大数与最小数位置互换 */
void MaxMinExchang(________, int n)
{
int maxValue = a[0], minValue = a[0], maxPos = 0, minPos = 0;
int i;
for (i=1; i maxValue)
{
maxValue = _______;
maxPos = ____;
}
if (a[i] < minValue)
{
minValue = a[i];
minPos = i;
}
}
Swap(________________);
}
/* 函数功能：两整数值互换 */
void Swap(int *x, int *y)
{
int ________;
temp = *x;
_________;
*y = temp;
}
![下面程序的功能是从键盘输入10个整数，用<strong>函数</strong>编程实现计算其<strong>最大值</strong>和<strong>最小值</strong>，并<strong>互换</strong>它们所在数组中的<strong>位置</strong>。程序运行结果如下：<strong>Input n(n<=10):10↙</strong><strong>Input 10 Numbers:1 4 3 0 –2 6 7 2 9 -1 ↙</strong><strong>Exchange results: 1 4 3 0 9 6 7 2 -2 -1</strong>按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。<code>#include
void ReadData(int a[], int n);
void PrintData(int a[], int n);
void MaxMinExchang(int a[], int n);
void Swap(int *x, int *y);
int main()
{
int a[10], n;
printf(](http://www.catpuzi.com/wp-content/themes/Git-alpha/timthumb.php?src=http://www.catpuzi.com/wp-content/themes/Git-alpha/assets/img/pic/4.jpg&h=160&w=260&q=90&zc=1&ct=1)
" />
">下面程序中子函数MonthDay()的功能是将某年的第几天转换为某月某日。程序的运行结果如下：Please enter year, yearDay:2014,100↙month = 4, day = 10按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。#include
void MonthDay(int year, int yearDay, int *pMonth, int *pDay);
int dayTab[2][13] = {{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31}};
int main()
{
int year, month, day, yearDay;
printf("Please enter year, yearDay:");
scanf("%d,%d", &year, &yearDay);
_________________;
printf("month = %d, day = %d\n", month, day);
return 0;
}
/* 函数功能：对给定的某一年的第几天，计算它是这一年的第几月第几日 */
void MonthDay(int year, int yearDay, int *pMonth, int *pDay)
{
int i, leap;
leap = _________________________;
for (i=1; yearDay>dayTab[leap][i]; i++)
{
yearDay = ______________________;
}
______________; /* 将计算出的月份值赋值给pMonth所指向的变量 */
*pDay = yearDay; /* 将计算出的日号赋值给pDay所指向的变量 */
}
">子函数Fun的功能是比较形参变量x和y所指的内存单元中的数据大小，将两者中的最小值返回。以下程序执行后输出结果是7,8,7。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。#include
int Fun(int *x,int *y)
{
if(___________) /*如果形参变量x所指的内存单元中的数据小于y所指的内存单元中的数据，则返回该最小值*/
return *x;
else
return *y;
}
int main()
{
int a=7,b=8,_______,r;
p=&a;
q=&b;
r=____________; /*调用子函数Fun，返回变量a和b中的最小值，将其存放到变量r中。*/
printf("%d,%d,%d\n",*p,*q,r);
return 0;
}
">下面程序的功能是输入某年某月某日，计算并输出它是这一年的第几天。程序的运行结果如下：Please enter year, month, day:2014,12,29↙yearDay = 363按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。#include
int DayofYear(int year, int month, int day);
int dayTab[2][13] = {{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31}};
int main()
{
int year, month, day, yearDay;
printf("Please enter year, month, day:");
scanf("%d,%d,%d", &year, &month, &day);
yearDay = DayofYear(year, month, day);
printf("yearDay = %d\n", yearDay);
return 0;
}
/* 函数功能：对给定的某年某月某日，计算并返回它是这一年的第几天 */
int DayofYear(int year, int month, int day)
{
int i, leap;
leap = ________________________; /* 若year为闰年，即leap值为1，则用第1行元素dayTab[1][i]计算；
否则leap值为0，用第0行dayTab[0][i]计算 */
for (i=1; _______; i++)
{
day = ________________;
}
return day; /* 返回计算出的day的值 */
}
![下面程序的功能是输入某年某月某日，计算并输出它是这一年的第几天。程序的运行结果如下：Please enter year, month, day:2014,12,29↙yearDay = 363按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。<code>#include
int DayofYear(int year, int month, int day);
int dayTab[2][13] = {{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31}};
int main()
{
int year, month, day, yearDay;
printf(](http://www.catpuzi.com/wp-content/themes/Git-alpha/timthumb.php?src=http://www.catpuzi.com/wp-content/themes/Git-alpha/assets/img/pic/7.jpg&h=160&w=260&q=90&zc=1&ct=1)
" />
">下面程序中子函数MonthDay()的功能是将某年的第几天转换为某月某日。程序的运行结果如下：Please enter year, yearDay:2014,100↙month = 4, day = 10按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。#include
void MonthDay(int year, int yearDay, int *pMonth, int *pDay);
int dayTab[2][13] = {{0,31,28,31,30,31,30,31,31,30,31,30,31},{0,31,29,31,30,31,30,31,31,30,31,30,31}};
int main()
{
int year, month, day, yearDay;
printf("Please enter year, yearDay:");
scanf("%d,%d", &year, &yearDay);
_________________;
printf("month = %d, day = %d\n", month, day);
return 0;
}
/* 函数功能：对给定的某一年的第几天，计算它是这一年的第几月第几日 */
void MonthDay(int year, int yearDay, int *pMonth, int *pDay)
{
int i, leap;
leap = _________________________;
for (i=1; yearDay>dayTab[leap][i]; i++)
{
yearDay = ______________________;
}
______________; /* 将计算出的月份值赋值给pMonth所指向的变量 */
*pDay = yearDay; /* 将计算出的日号赋值给pDay所指向的变量 */
}
">采用梯形法编程实现在积分区间[a,b]内计算下面两个函数的定积分。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求。程序运行结果示例:y1=1.333350y2=1.151212#include
float Fun1(float x);
float Fun2(float x);
float Integral(float (*f)(float), float a, float b);
int main()
{
float y1, y2;
y1 = Integral(Fun1, 0.0, 1.0);
y2 = Integral(Fun2, 0.0, 3.0);
printf("y1=%f\ny2=%f\n", y1, y2);
return 0;
}
/* 函数功能：计算函数1+x*x的函数值 */
float Fun1(float x)
{
return 1 + x * x;
}
/* 函数功能：计算函数x/(1+x*x)的函数值 */
float Fun2(float x)
{
return x / (1 + x * x);
}
/* 函数功能：用梯形法计算函数的定积分 */
float Integral(float (*f)(float), float a, float b)
{
float s, h;
int n = 100, i;
s = __________;
h = __________;
for (i=1; i<n; i++)
{
s += __________;
}
return __________;
}
">子函数Fun的功能是比较形参变量x和y所指的内存单元中的数据大小，将两者中的最小值返回。以下程序执行后输出结果是7,8,7。按要求在空白处填写适当的表达式或语句，使程序完整并符合题目要求#include
int Fun(int *x,int *y)
{
if(___________) /*如果形参变量x所指的内存单元中的数据小于y所指的内存单元中的数据，则返回该最小值*/
return *x;
else
return *y;
}
int main()
{
int a=7,b=8,_______,r;
p=&a;
q=&b;
r=____________; /*调用子函数Fun，返回变量a和b中的最小值，将其存放到变量r中。*/
printf("%d,%d,%d\n",*p,*q,r);
return 0;
}