c语言入门编程题库100题及答案：C语言实战例题小白必会的
c语言入门编程题库100题及答案：C语言实战例题小白必会的#include <stdio.h> int main() { int n i flag = 0; printf("Enter a positive integer: "); scanf("%d" &n); for(i=2; i<=n/2; i) { // condition for nonprime number if(n%i==0) { flag=1; break; } } if (flag==0) printf("%d is a prime number.\n" n); else printf("%d is not a prime number.\n" n); return 0; }8.C编程 - 检查闰年#include <stdio.h> int main() { int n i
这些都是基本的 C 程序，可以帮助刚踏入 C 编程世界的新手。快来试试吧：
1、C 语言编程 – Hello World
#include<stdio.h>
int main()
{
printf("Hello world\n");
printf("Linux迷 www.linuxmi.com");
return 0;
}
2. C 语言编程 - 执行算术运算
#include<stdio.h>
int main()
{
int a b;
printf("Enter two numbers:");
scanf("%d%d" &a &b);
printf("Sum=%d difference=%d product=%d quotient=%d\n" a b a-b a*b a/b);
return 0;
}
3.C 编程 - 求圆的面积
#include<stdio.h>
#include<math.h>
int main()
{
float r;
float N=3.14;
float s;
//N*r*r;该行必须在输入r值以后
printf("请输入该圆的半径:");
scanf("%f" &r);
s=N*r*r;
printf("%.7f\n" s);//输出小数点后7位
return 0;
}
4.C编程 - 在3个数字中找到最大值
#include<stdio.h>
int main()
{
int a b c;
printf("\nEnter value of a b & c : ");
scanf("%d %d %d" &a &b &c);
if ((a > b) && (a > c))
printf("\na is greatest\n");
if ((b > c) && (b > a))
printf("\nb is greatest\n");
if ((c > a) && (c > b))
printf("\nc is greatest\n");
return 0;
}
5.C编程 - 查找偶数或奇数
#include<stdio.h>
int main()
{
int n;
printf("Enter a number:");
scanf("%d" &n);
if(n%2==0)
{
printf("Number is even\n");
}
else
{
printf("Number is odd\n");
}
return 0;
}
6. C编程 - 显示一个数字的因数
#include <stdio.h>
int main()
{
int n i;
printf("Enter a positive integer: ");
scanf("%d" &n);
printf("Factors of %d are: " n);
for(i=1;i<=n; i)
{
if(n%i==0)
printf("%d " i);
}
return 0;
}
7. C编程 - 检查质数
#include <stdio.h>
int main()
{
int n i flag = 0;
printf("Enter a positive integer: ");
scanf("%d" &n);
for(i=2; i<=n/2; i)
{
// condition for nonprime number
if(n%i==0)
{
flag=1;
break;
}
}
if (flag==0)
printf("%d is a prime number.\n" n);
else
printf("%d is not a prime number.\n" n);
return 0;
}
8.C编程 - 检查闰年
#include<stdio.h>
int main()
{
int year;
printf("Enter a year: ");
scanf("%d" &year);
if(year%4 == 0)
{
if( year0 == 0)
{
// year is divisible by 400 hence the year is a leap year
if ( year@0 == 0)
printf("%d is a leap year.\n" year);
else
printf("%d is not a leap year.\n" year);
}
else
printf("%d is a leap year.\n" year );
}
else
printf("%d is not a leap year.\n" year);
return 0;
}
9.C编程 - 从1加到n的和
#include<stdio.h>
int main()
{
int i n sum=0;
printf("Upto how many terms you want to find the sum:");
scanf("%d" &n);
for(i=1;i<=n;i ){
sum = sum i;
}
printf("Sum is %d\n" sum);
return 0;
}
10. C编程 - 一个数的阶乘
#include <stdio.h>
int main()
{
int n i;
unsigned long long factorial = 1;
printf("Enter an integer: ");
scanf("%d" &n);
// show error if the user enters a negative integer
if (n < 0)
printf("Error! factorial of a negative number doesn't exist.");
else
{
for(i=1; i<=n; i)
{
factorial *= i; // factorial = factorial*i;
}
printf("Factorial of %d = %llu\n" n factorial);
}
return 0;
}
这些 C 编程示例，可以很好的帮助初学者进行编码之旅。
来源： Linux公社
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