a probably answer for the program
- code:
#include <stdio.h>
double min(double, double);
int main(void) {
printf("%lf", min(8.23, 4.56));
}
double min(double a, double b) {
if (a > b)
return b;
else
return a;
}- code:
#include <stdio.h>
void chline(char, int, int);
int main(void) {
char c;
int i, j;
printf("Please enter which character you like:");
scanf_s("%c",&c);
printf("Please enter i*j as you like:");
scanf_s("%d*%d", &i, &j);
chline(c, j, i);
}
void chline(char ch, int i, int j) {
for (int a = 0; a < j; a++) {
for (int b = 0; b < i; b++)
printf("%c", ch);
printf("\n");
}
}- code:
#include <stdio.h>
void print(char, int, int);
int main(void) {
char c;
int i, j;
printf("Please enter which character you like:");
scanf_s("%c", &c);
printf("Please enter i*j as you like:");
scanf_s("%d*%d", &i, &j);
print(c, j, i);
}
void print(char ch, int i, int j) {
for (int a = 0; a < j; a++) {
for (int b = 0; b < i; b++)
printf("%c", ch);
printf("\n");
}
}- code:
#include <stdio.h>
double average(double, double);
int main(void) {
double a, b;
scanf_s("%lf%lf", &a, &b);
printf("%lf",average(a, b));
}
double average(double a, double b) {
return 1.0 / ((1.0 / a + 1.0 / b) / 2.0);
}- code:
#include <stdio.h>
void larger_of(double*, double*);
int main(void) {
double a, b;
scanf_s("%lf%lf", &a, &b);
larger_of(&a,&b);
printf("%lf %lf", a, b);
}
void larger_of(double* a, double* b) {
if (*a > *b)
*b = *a;
else
*a = *b;
}- code:
#include <stdio.h>
void sort(double*, double*, double*);
int main(void) {
double a, b, c;
scanf_s("%lf%lf%lf", &a, &b, &c);
sort(&a, &b, &c);
printf("%lf,%lf,%lf", a, b, c);
}
void sort(double* a, double* b, double* c) {
double temp;
if (*a < *b) {
if (*a < *c) {
if (*b < *c);//a<b<c
else {//a<c<b
temp = *c;
*c = *b;
*b = temp;
}
}
else {//c<b<a
temp = *c;
*c = *a;
*a = temp;
}
}
else if (*b < *c) {
if (*a < *c) {//b<a<c
temp = *a;
*a = *b;
*b = temp;
}
else {//b<c<a
double temp1 = *b;
temp = *a;
*b = *c;
*a = temp1;
*c = temp;
}
}
else {//c<a<b
double temp1 = *c;
temp = *a;
*c = *b;
*a = temp;
*b = temp;
}
}- code:
#include <stdio.h>
#include <ctype.h>
// 判断字符是否为字母，如果是则返回该字母在字母表中的位置，否则返回-1
int alpha_position(char ch) {
if (isalpha(ch)) {
// 将大写字母都转换为小写字母
ch = tolower(ch);
return ch - 'a' + 1;
}
return -1;
}
int main() {
char ch;
int position;
// 读取标准输入中的字符，直到遇到文件结尾
while (scanf("%c", &ch) != EOF) {
if (isalpha(ch)) {
position = alpha_position(ch);
printf("%c is a letter, position in alphabet: %d\n", ch, position);
} else {
printf("%c is not a letter\n", ch);
}
}
return 0;
}- code：
void power() {
double n;
int p;
while (scanf_s("%lf%d", &n, &p) == 2) {
if (n == 0) {
if (p == 0)
printf("0的0次幂未定义！因此处理为：");
else {
printf("%d\n",0);
continue;
}
}
double pow = 1;
for (int i = 1; i <= p; i++)
pow *= n;
printf("%lf\n",pow);
}
printf("Done\n");
}- code:
void power1() {
double n;
int p;
if (scanf_s("%lf%d", &n, &p) == 2) {
if (n == 0) {
if (p == 0)
printf("0的0次幂未定义！因此处理为：1");
else {
printf("%d\n", 0);
power1();
}
}
else {
double pow = 1;
for (int i = 1; i <= p; i++)
pow *= n;
printf("%lf\n", pow);
power1();
}
}
printf("Done\n");
}- code:
void to_base_n(int a, int b) {
while (b < 2 || b>10) { // 检查进制是否在2~10之间，如果不是则要求重新输入
printf("Your number is invaild!\n");
printf("Please enter again:");
while (getchar() != '\n')continue; // 清除输入缓存
scanf_s("%d%d", &a, &b); // 获取新的输入
}
int c = a % b; // 取余数
int d = a / b; // 取商
if (d >= b) // 如果商大于等于进制，则递归调用本函数
to_base_n(d, b);
else // 如果商小于进制，则直接输出商
printf("%d", d);
printf("%d", c); // 输出余数
}- code:
// 这里是计算斐波那契数列的函数，参数i表示要计算的数列项数
int Fibonacci(int i) {
int sum = 2, f1 = 1, f2; // 定义三个变量，分别表示当前项的值，上一项的值，和上上一项的值
if (i == 0) // 如果要计算的项数为0，直接返回0
return 0;
else if (i <= 2) // 如果要计算的项数小于等于2，直接返回1
return 1;
else { // 如果要计算的项数大于2
for (int j = 3; j < i; j++) { // 从第三项开始循环计算每一项的值
f2 = sum; // 保存上上一项的值
sum += f1; // 计算当前项的值
f1 = f2; // 将上一项的值更新为上上一项的值
}
}
return sum; // 返回计算出的数列值
}