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设已有定义：float x；则以下对指针变量P进行定义且赋初值的语句中正确的是( )
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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:14309672-2-1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 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 */}
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:678910Output array b:12345#include #define N 10void 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
声明语句int *f();中f的含义是________。
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