摘要:
"orz" cpp include include using namespace std; typedef long long ll; int n, m, k, C[105][105], u[105], r[105], g[105]; const int mod=1e9+7; int ksm(in 阅读全文
摘要:
"too hard" cpp include include using namespace std; int n, d, m, uu, vv, hea[500005], cnt, w[500005], f[500005][22], g[500005][22]; bool vis[500005]; 阅读全文