程序代码：

#include <stdio.h>
#include <stdlib.h>

#define TIME_TAB_MAX 10
#define ONEDAY 1440
char g_tab_time[TIME_TAB_MAX][6] =

 {
     "22:08",
     "08:31",
     "18:25",
     "21:35",
     "01:35",
     "23:59",
     "01:03",
     "09:34",
     "07:23",
     "09:59"

 };
char g_sleep_time[6] ="00:03";
int charconvertint(char c){
    int i=c;
    switch(c)
    {
    case 48:
        return 0;
    case 49:
        return 1;
    case 50:
        return 2;
    case 51:
        return 3;
    case 52:
        return 4;
    case 53:
        return 5;
    case 54:
        return 6;
    case 55:
        return 7;
    case 56:
        return 8;
    case 57:
        return 9;
    default:
        return 0;
    }
}
int converttime(char *time){
    return (charconvertint(time[0])*10+charconvertint(time[1]))*60+(charconvertint(time[3])*10+charconvertint(time[4]));
}
int nearTime(char sleep_time[],char tab_time[][6]){
    int sleep_time_int=0;
     int tab_time_int=0;
    int sum[10]={0};
    int i=0,j=0;
    int min=0;
    sleep_time_int=converttime(sleep_time);
    for(i=0;i<10;i++)
    {
        tab_time_int=converttime(tab_time[i]);
        if(sleep_time_int>tab_time_int)
        {
            sum[i]=((sleep_time_int-tab_time_int)<(tab_time_int+ONEDAY-sleep_time_int)?(sleep_time_int-tab_time_int):(tab_time_int+ONEDAY-sleep_time_int));
        }
        else if(sleep_time_int<tab_time_int)
        {
            sum[i]=((tab_time_int-sleep_time_int)<(sleep_time_int+ONEDAY-tab_time_int)?(tab_time_int-sleep_time_int):(sleep_time_int+ONEDAY-tab_time_int));
        }
        else
            return i;
    }
i=0;
    min=sum[0];
    while(i<10)
    {
        if(min>=sum[i])
        {
            min=sum[i];
            j=i;
        }
        i++;
    }
    return j;
}
int main(){
    int k=0;
    k=nearTime(g_sleep_time,g_tab_time);
    printf("%s\n",g_tab_time[k]);
}


抄袭了一点楼上的的，请不要介意。