题意:你需要构造n个四项选择题.格式为:问在前i个问题中选了几个hi字母? 输出有最多正确答案的构造方案. 标程: 1 #include<cstdio> 2 using namespace std; 3 typedef long long ll; 4 const int mod=998244353; 5 int ksm(int x,int y) 6 { 7 int res=1; 8 while (y) {if (y&1) res=(ll)res*x%mod; x=(ll)x*x%mod
There is an old Spanish Proverb which states, "Tomorrow is often the busiest day of the week". How many times have we put off our dreams until tomorrow? I'd say, way too many. Our dreams should not, and cannot wait. We have to go for them now! H