1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 `#include using I = unsigned int; static constexpr I MAXN=2000; static I cnt[MAXN*MAXN]; static I calc() { I N, K, v, ret; scanf("%u %u", &N, &K); for (I y=0; y