暑假刷题第24天--8/11

[USACO17JAN] Secret Cow Code S - 洛谷（非常好的一道题）

#include
#include
using namespace std;
#define ull unsigned long long
int main(){
	string s;
	ull n;
	cin>>s>>n;
	ull sum=s.size();
	 while(sumk)k*=2;
	 	k/=2;
	 	n-=k+1;
	 	if(n==0)n=k;
	 }
	 cout<

Status - Codeforces Round 891 (Div. 3) - Codeforces

#include
#include
using namespace std;
void solve(){
	string s;
	cin>>s;
	s='0'+s;
	int p=s.size();
	for(int i=s.size()-1;i>=0;i--){
		if(s[i]>='5')s[i-1]++,p=i;
	}
	int i;
	if(s[0]=='0')i=1;
	else i=0;
	for(;i=p)cout<<'0';
		else cout<>t;
	while(t--){
		solve();
	}
} 

Problem - C - Codeforces

#include
#include
#include

Problem - D - Codeforces

#include
#include
#include

Problem - E - Codeforces

#include
#include
#include