摘要:
数字计数(数位dp) 细节见代码: 1 #include <bits/stdc++.h> 2 using namespace std; 3 typedef long long ll; 4 const int maxn = 20; 5 const int mod = 1e9+7; 6 7 ll l,r 阅读全文
摘要:
数字游戏 WA_Code: 1 #include <bits/stdc++.h> 2 using namespace std; 3 typedef long long ll; 4 const int maxn = 15; 5 const int mod = 1e9+7; 6 7 ll l,r; 8 阅读全文