Multiple test cases per file¶

tcframe supports ICPC-style problems as well. In this style, for each of the SampleTestCases(), TestCases(), and TestGroupX() methods, the test cases will be combined into a single file. The file is prepended with a single line containing the number of test cases in it.

To write an ICPC-style test cases generator, first write the runner as usual, assuming that the problem not ICPC-style. Then, apply the following changes.

Problem specification class¶

Declare an integer input variable (e.g., T) that will hold the number of test cases in a single file.
```
protected:
    int T;

    ...
```
In the problem configuration, call the setMultipleTestCasesCount() method with the previous variable as the argument.
```
void Config() {
    ...

    setMultipleTestCasesCount(T);

    ...
}
```
The input format specification should not contain T. It should specify the format of a single test case only. The number of test cases will be automatically prepended in the final combined test case input file.
Constraints can be imposed on T, by writing the method MultipleTestCasesConstraints() method and defining constraints there.
```
void MultipleTestCasesConstraints() {
    CONS(1 <= T && T <= 20);
}
```

Generation specification class¶

No changes are necessary.

Solution program¶

Although the input format only specifies a single test case, the solution should read the number of test cases in the first line. In other words, the solution will read the final combined test cases input file.

Notes¶

Currently, it is impossible to prepend each output with something like Case #X, where X is the test case number.