程序代码：

#include <stdio.h>

int main(void)
{
    int h, m, t[24][2];
    int sum = 0;
    do {
        printf("Enter time like 10:30 : ");
        scanf("%d:%d", &h, &m);
        if (h < 0 || m < 0 || h >= 24 || m >= 60)
            printf("enter error,try again.\n");
    } while (h < 0 || m < 0 || h >= 24 || m >= 60);

    for (int i = 0; i <= h; i++)
        for (int j = 0; j < 2; j++)
        {
            if (j == 0)
            {
                t[i][j] = i;
                printf("%2d:00 敲击 %d 次\n", i, t[i][j]);
            }
            else
            {
                t[i][j] = 1;
                if ((i == h) && (m >= 0 && m < 30))
                    t[h][1] = 0;
                if (t[i][j] == 1)
                    printf("%2d:30 敲击 %d 次\n", i, t[i][j]);
            }
            sum += t[i][j];
        }
    
    printf("直至当前时间共敲击钟声 %d 次.\n", sum);
    
    return 0;
}

程序代码：

#include<stdio.h>

int main()
{
    int i,j=0,hour,minute;
    int sum=0;
    int a[24];
    for(i=0;i<24;i++){
        if(i%2==0){
            a[i]=1;
        }
        else{
            a[i]=(i+1)/2;
        }
    }
    printf("输入时分（用逗号隔开）");
    scanf("%d,%d",&hour,&minute);

    j=2*hour-1;
    if(minute>=30){
        j+=1;
    }

    for(i=0;i<=j;i++){
        printf("第%d次敲击的次数为%d\n",i+1,a[i]);
        sum+=a[i];
    }
    printf("总次数为%d\n",sum);
    return 0;

}