c无聊编程

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

void fun_1()//绘制余弦直线
{
    double y;
    int m, x;
    for (y = ; y >= -; y -= 0.1)
    {
        m = acos(y)*;
        for (x = ; x < m; x++)printf(" ");
        printf("*");
        for (; x <  - m; x++)printf(" ");
        printf("*\n");
    }
    int x_1, y_1;
    x_1 = ;
    for (y_1 = ; y_1 <= ; y_1++)
        for(x_1=;x_1<=y_1;x_1++){
       if(x_1==y_1) {
            printf("*\n");

        }
       else {
           printf(" ");

       }
    }
}
void fun_2() {
    int i, max, min, sum=, num[] = {,,,};
    max = min = num[];
    printf("max%d\n", max);    printf("min%d\n", min);
    printf("score:\n");
    for (i = ; i < ; i++)
    printf("%d\n", num[i]);
    for (i = ; i < ; i++)
    {

        sum += num[i];
        if (max < num[i])
        {
            max = num[i];

        }
        if (min > num[i])min = num[i];
    }
    sum = sum - max - min;
    printf("avg%dmin%dmax%d", sum / ,min,max);
}
void fun_3() {
    int i;
    long j;//N的数值
    j = ;
    for (i = ; i > ; i--)
    {
        if (j%i == )
        {
            printf("factor:%d", i);
            break;
        }
    }

}
void fun_4() {
    int x, y,last=;
    x = ;
    for (y = ; y > ; y--)
    {
        last = last*x%;
    }
    printf("%d",last);
}
void fun_5()
{
    int a, count = ;
    for (a = ; a <= ; a = a + )
    {
        count++;
        if (!(a % ))count++;
    }
    printf("%d",count);
}
void fun_6()
{
    int a, b, c, count=;
    for (a = ; a <= ; a++)
        for (b = ; b <= ; b++)
            for (c = ; c <=  && a != b; c++)
                if (c != a&&c != b)count++;
    printf("%d",count);
}
void fun_7()
{
    int n = ,i,j;
    for (i = ; i < n; i++) {
        for (j = ; j < -i; j++)printf(" ");
        for (j = ; j < i + ; j++)printf("%6d", fun_7_f(i, j));
        printf("\n");
    }
}
int fun_7_f(int x,int y)//fun_7子函数进行递归
{
    int z;
    if (y ==  || y ==x + )return ;
    z = (x - , y - ) + (x - , y); return z;
}
void fun_8()
{
    int data[];
    int i = ;
    int x=;
    printf("%d\n", x);
    for (i = ;i<; i++)
    {
        data[i] = x % ;
        x = x / ;// printf("%d\n", x);
        //printf("%d\n", data[i]);
    }
    for (i = ; i > ; i--)
    {
        if (data[i] == )
            for (; i >= ; i--)printf("%d", data[i]);
    }
}

struct data {
    int year;
    int mouth;
    int day;
};
void fun_2_1()
{
    struct data trem;
    trem.year = ;
    trem.mouth = ;
    trem.day = ;
    int day_tab[][]={ {,,,,,,,,,,,},{ ,,,,,,,,,,, }    };
    int i, yearf, mouthf, dayf; yearf = mouthf = dayf = ;
    for (i = trem.year; i > ; i--)
    {
        if (i %  ==  && i %  != )
            dayf =dayf+;
        else dayf = dayf + ; printf("year+%d\n", dayf);
    }
    for (i = ; i <trem.mouth-; i++)
    {
        if (trem.year %  ==  && trem.year%  != )
            dayf = dayf + day_tab[][i];
        else dayf = dayf + day_tab[][i]; printf("mouthday+%d\n", dayf);
    }
    dayf = dayf + trem.day;
    printf("mouthday+%d\n", dayf);

    int f;
    f = dayf % ;
    printf("%d", f);
    switch (f)
    {
    case :;
    case :;
    case :printf("flash"); break;
    default:printf("sleep");
    }

}
void fun_2_2() {

    int i, j, k, l;
    for (i = ; i < ; i++) {

        for (j = ; j < ; j++)
        {
            if (i != j)
            {
                k = i *  + i *  + j *  + j;
                for (l = ; l*l < k; l++);
                if (l*l == k)printf("OK\t%d", k);
            }
        }

    }
}
int main()
{

    //fun_1();//绘制余弦直线
    //fun_2();//歌星大奖赛
    //fun_3();//求最大约数
    //fun_4();//高次方数的尾数
    //fun_5();//阶层尾数0个数
    //fun_6();//三个小朋友分五本书
    //fun_7();//杨辉三角
    //fun_8();//二进制转换
    //fun_2_1();//三天打鱼两天晒网
    //fun_2_2();//根据描述追踪车牌号
    fun_2_3();
    return ;
}