Here is test generator that helped me beat TLE!

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#include <stdio.h>

void test1()
{
    FILE* stream = freopen ("BusRoutes.big", "w", stdout);
    const int n = 1000;
    const int endp = 100000;
    int cur = endp;
    printf ("%d 100000\n", n);
    for (int i = 0; i < n; ++i) {
        int cnt = (cur == 100) ? 100 : 200;
        printf ("%d ", cnt);
        for (int j = 0; j < cnt; ++j) {
             printf ("%d ", cur--);
        }
        printf ("\n");
        cur += 100;
    }
    printf ("1 %d\n", endp);
    fclose (stream);
}

int main()
{
    test1();
    return 0;
}
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It didn't work

Although my solution finish in the time limit,it get TLE in the test32