Task

1
#include<stdio.h>
#include<stdlib.h>
int main()
{
    printf("0\n");
    printf("<H>\n");
    printf("I I\n");
     printf("0\n");
    printf("<H>\n");
    printf("I I\n");

    system("pause");
    return 0;
}

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

system("pause");
return 0;
}

2

#include <stdio.h>
#include <math.h>
int main()
{
    double x, ans;
    while (scanf_s("%lf", &x) != EOF)
    {
        ans = pow(x, 365);
        printf("%.2f的365次方：%.2f\n", x, ans);
        printf("\n");

}
    return 0;
}

#include <stdio.h>
#include <math.h>
int main()
{
    double c, f;
    while (scanf_s("%lf", &c) != EOF)
    {
        f = 5/9 * c + 32;
        printf("摄氏度c=%.2f,华氏度f=%.2f\n", c, f);
        printf("\n");
    

}
    return 0;
}

3
#include<stdio.h>
#include<math.h>
int main()
{
    int n;
    long double sum, a;
    scanf_s("%d", &n);
    a = pow(2, n);
    sum = (1 - a) / (1 - 2);
    printf("求和结果为：%lf", sum);
    return 0;
}

4
#include<stdio.h>
int main()
{
    double x, y;
    char c1, c2, c3;
    int a1, a2, a3;
    scanf_s("%d%d%d", &a1, &a2, &a3);
    printf("%d,%d,%d\n", a1, a2, a3);
    scanf_s("%c%c%c", &c1, &c2, &c3);
    printf("%c,%c,%c\n", c1, c2, c3);
    scanf_s("%lf,%lf", &x, &y);
    printf("%lf,%lf\n", x, y);
    return 0;
}

5

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include<stdlib.h>
int main()
{
    int age1, age2;
    char gender1, gender2;

    scanf("%d%c%d%c", &age1, &gender1, &age2, &gender2);
    printf("age1 = %d,gender1 = %c\n", age1, gender1);
    printf("age2 = %d,gender2 = %c\n", age2, gender2);

    system("pause");
    return 0;
}

6

#include <stdio.h>
#include <stdlib.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) ;");
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");
system("pause");
return 0;
}