1
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <windows.h>
#define N 80
void print_text(int line, int col, char text[]); // 函数声明
void print_spaces(int n); // 函数声明
void print_blank_lines(int n); // 函数声明
int main() {
int line, col, i;
char text[N] = "hi, April~";
srand(time(0)); // 以当前系统时间作为随机种子
for (i = 1; i <= 10; ++i) {
line = rand() % 25;
col = rand() % 80;
print_text(line, col, text);
Sleep(1000); // 暂停1000ms
}
return 0;
system("pause");
}
// 打印n个空格
void print_spaces(int n) {
int i;
for (i = 1; i <= n; ++i)
printf(" ");
}
// 打印n行空白行
void print_blank_lines(int n) {
int i;
for (i = 1; i <= n; ++i)
printf("\n");
}
// 在第line行第col列打印一段文本
void print_text(int line, int col, char text[]) {
print_blank_lines(line - 1); // 打印(line-1)行空行
print_spaces(col - 1); // 打印(col-1)列空格
printf("%s", text); // 在第line行、col列输出text中字符串
}
在屏幕上间隔一秒打印"hi, April~"
2.
2.1
#include <stdio.h>
#include<stdlib.h>
long long fac(int n); // 函数声明
int main() {
int i, n;
printf("Enter n: ");
scanf("%d", &n);
for (i = 1; i <= n; ++i)
printf("%d! = %lld\n", i, fac(i));
system("pause");
return 0;
}
// 函数定义
long long fac(int n) {
static long long p = 1;
p = p * n;
return p;
}
2.1.1
#include <stdio.h>
#include<stdlib.h>
long long fac(int n); // 函数声明
int main() {
int i, n;
printf("Enter n: ");
scanf("%d", &n);
for (i = 1; i <= n; ++i)
printf("%d! = %lld\n", i, fac(i));
system("pause");
return 0;
}
// 函数定义
long long fac(int n) {
static long long p = 1;
printf("p=%lld\n",p);
p = p * n;
return p;
}
2.2
#include <stdio.h>
#include<stdlib.h>
int func(int, int); // 函数声明
int main() {
int k = 4, m = 1, p1, p2;
p1 = func(k, m); // 函数调用
p2 = func(k, m); // 函数调用
printf("%d, %d\n", p1, p2);
system("pause");
return 0;
}
// 函数定义
int func(int a, int b) {
static int m = 0, i = 2;
i += m + 1;
m = i + a + b;
return m;
}
3
#include <stdio.h>
long long func(int n);
int main() {
int n;
long long f;
while (scanf("%d", &n) != EOF) {
f = func(n);
printf("n = %d, f = %lld\n", n, f);
}
return 0;
}
long long func(int n) {
long long f;
if (n == 0)
{
f = 0;
}
if (n >= 1 && n <= 32)
{
f = 2 * func(n - 1) + 1;
}
return f;
}
4
4.1
#include <stdio.h>
int func(int n, int m);
int main() {
int n, m;
while(scanf("%d%d", &n, &m) != EOF)
printf("n = %d, m = %d, ans = %d\n", n, m, func(n, m));
return 0;
}
int func(int n, int m){
int i,a=1,b=1,s;
if(n>m&&m!=0){
for(i=n-m+1;i<=n;i++)
a*=i;
for(i=1;i<=m;i++)
b*=i;
s=1.0*a/b;
}
if(m>n)
s=0;
else if(m==0||m==n)
s=1;
return s;
}
4.2
#include <stdio.h>
int func(int n, int m);
int main() {
int n, m;
while(scanf("%d%d", &n, &m) != EOF)
printf("n = %d, m = %d, ans = %d\n", n, m, func(n, m));
return 0;
}
int func(int n, int m)
{
int s;
if(n<m)
s=0;
else if(m==n||m==0)
s=1;
else if(m==1)
s=n;
else
s=func(n-1,m)+func(n-1,m-1);
return s;
}
5
# include <stdio.h>
# include <math.h>
void hanoi(unsigned int n, char from, char temp,char to);
void moveplate(unsigned int n, char from, char to);
int main()
{
unsigned int n;
int i;
while((scanf("%u",&n)!=EOF))
{
hanoi(n,'A','B','C');
i=pow(2.0,n*1.0)-1;
printf("一共移动了%d次\n",i);
}
return 0;
}
void hanoi(unsigned int n,char from, char temp, char to)
{
if(n==1)
moveplate(n,from,to);
else
{ hanoi(n-1,from,to,temp);
moveplate(n, from,to);
hanoi(n-1,temp, from,to);
}
}
void moveplate(unsigned int n, char from, char to)
{
printf("%u:%c-->%c\n",n,from,to);
}
6
#include <stdio.h>
#include<stdlib.h>
#include <math.h>
long func(long s);
int main() {
long s, t;
printf("Enter a number: ");
while (scanf("%ld", &s) != EOF) {
t = func(s);
printf("new number is: %ld\n\n", t);
printf("Enter a number: ");
}
system("pause");
return 0;
}
long func(long s){
long n,m=0,i=1;
while(s!=0){
n=s%10;
if(n%2!=0){
m=m+n*i;
i=i*10;
}
s=s/10;}
return m;
}
标签：函数,int,编程,long,C语言,char,func,printf,include From： https://www.cnblogs.com/xiaodubideyuanzi/p/18165436