#include "cmp.h" int x[] = {1, 6, 48, 480}; int y[] = {6, 8, 10, 9}; int pos[] = {10, 30, 50, 70}; void remember(int n) { for(int i = 3; ~i; --i) { bit_set(pos[i] + n / x[i]); n %= x[i]; } } int g[6]; int compare(int b) { for(int i = 3; ~i; --i) { g[i] = b / x[i]; b %= x[i]; } for(int i = 3; ~i; --i) { if(bit_get(pos[i] + g[i])) continue; if(g[i] * 2 > y[i] - 1) { for(int j = g[i] + 1; j < y[i]; j++) if(bit_get(pos[i] + j)) return -1; return 1; } else { for(int j = g[i] - 1; ~j; --j) if(bit_get(pos[i] + j)) return 1; return -1; } } return 0; }