实验1_C语言输入输出和简单程序应用编程[1]

task1_1.c

 #include <stdio.h>
 int main() 
 {
  printf(" O \n");
  printf("<H>\n");
  printf("I I\n");
  return 0;
 }

task1_2.c

#include <stdio.h>
int main() 
{
 printf(" O       0 \n");
 printf("<H>     <H>\n");
 printf("I I     I I\n");
 return 0;
} 

task2.c

#include <stdio.h>
int main() 
{
 double a, b, c;
 scanf("%lf%lf%lf", &a, &b, &c);
 if(a+b>c&&b+c>a&&a+c>b)
    printf("能构成三角形\n");
 else
    printf("不能构成三角形\n");
 return 0;
}

task3.c

#include <stdio.h>
int main()
{
 char ans1, ans2; // 用于保存用户输入的答案
 printf("每次课前认真预习、课后及时复习了没? (输入y或Y表示有，输入n或N表示没有) : ");
 ans1 = getchar(); //
 getchar(); 
 printf("\n动手敲代码实践了没? (输入y或Y表示敲了，输入n或N表示木有敲) : ");
 ans2 = getchar();
 if ((ans1 == 'y' || ans1 == 'Y') && (ans2 == 'y' || ans2 == 'Y'))
 printf("\n罗马不是一天建成的, 继续保持哦:)\n");
 else
 printf("\n罗马不是一天毁灭的, 我们来建设吧\n");
 return 0;
}

task4.c

#include<stdio.h>
int main()
{
double x, y;
char c1, c2, c3;
int a1, a2, a3;

scanf("%d%d%d",&a1,&a2,&a3);
printf("a1 = %d, a2 = %d, a3 = %d\n", a1,a2,a3);

scanf("%c%c%c", &c1, &c2, &c3);
printf("c1 = %c, c2 = %c, c3 = %c\n", c1, c2, c3);

scanf("%lf,%lf", &x, &y);
printf("x = %lf, y = %lf\n",x, y);

return 0;
}

task5.c

#include <stdio.h>
int main() 
{
    int year;
int second_per_year=365*24*60*60;
int one_billion_miao=1000000000;
year=one_billion_miao/second_per_year;
printf("10亿秒约等于%d年\n", year);
return 0;
}

task6_2.c

#include<stdio.h>
#include<math.h>
int main()
{
double x, ans;

while(scanf("%lf",&x) !=EOF)
{
	ans = pow(x,365);
	printf("%.2f的365次方：%.2f\n",x,ans);
	printf("\n");
	
}

return 0;
}

task7.c

#include<stdio.h>
#include<math.h>

int main()
{
double F,C;

while(scanf("%lf",&C) !=EOF)
{
	F=9*C/5+32;
	printf("%.2f摄氏度换算成华氏度为%.2f",C,F);
	printf("\n");
	
}

return 0;
}

task8.c

#include<stdio.h>
#include<math.h>

int main()
{
int a,b,c;
double area,s;

while(scanf("%d%d%d",&a,&b,&c) !=EOF)
{
	s=(double)(a+b+c)/2;
	area=sqrt(s*(s-a)*(s-b)*(s-c));
	printf("a=%d,b=%d,c=%d,area=%.3f",a,b,c,area);
	printf("\n");
	
}

return 0;
}