rt，怀疑 read() 函数错了。

#include <stdio.h>
#define BUFSIZE 80000000
#define isdigit(x) (x > 47 && x < 58)
char buf[BUFSIZE];
int sttt = -1;
#define getchar() buf[++sttt]
#define N 50100
int x, y, a, b[N], c[N], lb, lc;
int read() {
    register char c;
    register int f = 1;

    for (; !isdigit(c); c = getchar()) {
        if (c == '-')
            f = -1;

        if (c == -1)
            return 0;
    }

    for (; isdigit(c); c = getchar())
        a = f * ((a << 1) + (a << 3) + (c ^ 48));

    return 1;
}
main() {
    fread(buf, 1, BUFSIZE, stdin);
    while (read()) {
        for (register int i = 1 << 15; i >= 1; i >>= 1) {
            if (x + i <= lb && b[x + i] >= a)
                x += i;

            if (y + i <= lc && c[y + i] < a)
                y += i;
        }

        if (++x <= lb)
            b[x] = a;
        else
            b[++lb] = a;

        if (++y <= lc)
            c[y] = a;
        else
            c[++lc] = a;

        x = y = a = 0;
    }

    printf("%d\n%d", lb, lc);
}