task1
include <stdio.h>
int main()
{
printf(" O O \n");
printf("
printf("I I I I\n");
return 0;
}
task2
include <stdio.h>
int main()
{
float a, b, c;
scanf("%f%f%f", &a, &b, &c);
if(a+b>c & a+c>b & b+c>a)
printf("能构成三角形\n");
else
printf("不能构成三角形\n");
return 0;
}
task3
include <stdio.h>
int main()
{
char ans1, ans2;
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)