我想知道我应该如何知道我的程序哪里出错了。下面的问题是一个作业，必须在线提交。但是在 10 个测试用例中，我的解决方案适用于前 6 个。其他四个给出错误的答案作为输出。测试用例没有提供或显示给参与者。所以人们可以告诉我应该如何为下面的问题生成我自己的一组测试用例，以了解我的代码在哪些场景下失败了？
描述：
Given M busy-time slots of N people, You need to print all the available time slots when all the N people can schedule a meeting for a duration of K minutes.
Event time will be of form HH MM ( where 0 <= HH <= 23 and 0 <= MM <= 59 ), K will be in the form minutes.
Input Format:
M K [ M number of busy time slots , K is the duration in minutes ]
Followed by M lines with 4 numbers on each line.
Each line will be of form StartHH StartMM EndHH EndMM [ Example 9Am-11Am time slot will be given as 9 00 11 00 ]
An event time slot is of form [Start Time, End Time ) . Which means it inclusive at start time but doesn’t include the end time.
So an event of form 10 00 11 00 => implies that the meeting start at 10:00 and ends at 11:00, so another meeting can start at 11:00.
Sample Input:
5 120
16 00 17 00
10 30 14 30
20 45 22 15
10 00 13 15
09 00 11 00
Sample Output:
00 00 09 00
17 00 20 45
Sample Input:
8 60
08 00 10 15
22 00 23 15
17 00 19 00
07 00 09 45
09 00 13 00
16 00 17 45
12 00 13 30
11 30 12 30
Sample Output:
00 00 07 00
13 30 16 00
19 00 22 00
Constraints :
1 <= M <= 100
Note: 24 00 has to be presented as 00 00.
我不想要一个解决方案，因为我已经有了一个（虽然并不完全完美），但是应该如何生成我自己的一组测试用例？我正在使用 Java。我的问题与如何测试我的代码有关？
我要求的解决方案：-
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.StringTokenizer;
public class Solution {
private static final Scanner scan = new Scanner(System.in);
static Map<Integer,Integer> map = new HashMap<Integer,Integer>();
static ArrayList<Integer> stime = new ArrayList<Integer>();
static StringTokenizer str = null;
static int limit;
static int[] timeArr = new int[1440];
ArrayList<Integer> time = new ArrayList<Integer>();
public static void main(String args[])
{
initialize(timeArr);
String line = scan.nextLine().toString();
str = new StringTokenizer(line);
int trials;
trials = Integer.parseInt(str.nextToken().toString());
limit = Integer.parseInt(str.nextToken().toString());
int startHr,startMin,endHr,endMin,startTime,endTime;
for(int i=0;i<trials;i++)
{
line = scan.nextLine().toString();
str = new StringTokenizer(line);
startHr = Integer.parseInt(str.nextToken());
startMin = Integer.parseInt(str.nextToken());
startTime = startHr*60 + startMin;
endHr = Integer.parseInt(str.nextToken());
endMin = Integer.parseInt(str.nextToken());
if(endHr==00 && endMin == 00)
{
endHr = 23;
endMin = 60;
}
endTime = (endHr*60 + endMin);
//System.out.println(startHr + ":" + startMin + " to " + endHr + ":" + endMin + " is " + startTime + " to " + endTime);
fillSlots(startTime,endTime);
}
//display();
fillMap();
//display();
limitMap();
toProperTime();
}
private static void toProperTime() {
// TODO Auto-generated method stub
int starthr,startmin,endhr,endmin;
for(int i=0;i<stime.size();i++)
{
starthr = (stime.get(i))/60;
startmin = (stime.get(i))%60;
if(map.get(stime.get(i))==1439)
{
endhr = (map.get(stime.get(i)) + 1)%24;
endmin = (map.get(stime.get(i)) + 1)%24;
}
else
{
endhr = (map.get(stime.get(i)) + 1)/60;
endmin = (map.get(stime.get(i)) + 1)%60;
}
System.out.println(getTime(starthr) + " " + getTime(startmin) + " " + getTime(endhr) + " " + getTime(endmin));
}
}
private static void fillMap() {
// TODO Auto-generated method stub
int counter = 0;
int endTime ,startTime,currentTime ;
boolean loop1 = false;
boolean loop2 =false;
while(counter<1440)
{
//System.out.println(counter);
currentTime = counter;
while((counter<1440)&&timeArr[counter]!=1)
{
loop1 = true;
if((counter==1439) || timeArr[counter] == 1)
{
endTime = counter;
counter++;
break;
}
counter++;
}
if((loop1==true)&&(loop2==false))
{
stime.add(currentTime);
map.put(currentTime,counter-1);
}
while((counter<1440)&&timeArr[counter]!=0)
{
counter++;
}
loop1 = false;
}
}
private static void displayMap() {
// TODO Auto-generated method stub
for(int i=0;i<stime.size();i++)
System.out.println(stime.get(i) +" till " + map.get(stime.get(i)));
}
private static void limitMap() {
// TODO Auto-generated method stub
for(int i=0;i<stime.size();i++)
{
if((map.get(stime.get(i)) - stime.get(i)) + 1 < limit)
{
map.remove(stime.get(i));
stime.remove(i);
}
}
}
private static void display() {
// TODO Auto-generated method stub
for(int i=0;i<timeArr.length;i++)
{
if((i)%60==0)
System.out.println();
System.out.print(timeArr[i]);
}
}
private static void initialize(int[] timeArr) {
// TODO Auto-generated method stub
for(int i=0;i<timeArr.length;i++)
{
timeArr[i] = 0;
}
}
private static void fillSlots(int startTime,int endTime) {
// TODO Auto-generated method stub
for(int i =startTime;i<endTime;i++)
{
timeArr[i] = 1;
}
}
private static String getTime(int x) {
// TODO Auto-generated method stub
NumberFormat format=NumberFormat.getInstance();
format.setMaximumIntegerDigits(2);
format.setMinimumIntegerDigits(2);
return format.format(x).replace(",","") ;
}
}