CF补题 Berland Fair

http://codeforces.com/problemset/problem/1073/D 

                                                               D. Berland Fair

XXI Berland Annual Fair is coming really soon! Traditionally fair consists of nn booths, arranged in a circle. The booths are numbered 11 through nn clockwise with nn being adjacent to 11 . The ii -th booths sells some candies for the price of aiai burles per item. Each booth has an unlimited supply of candies.

Polycarp has decided to spend at most TT burles at the fair. However, he has some plan in mind for his path across the booths:

• at first, he visits booth number 11 ;
• if he has enough burles to buy exactly one candy from the current booth, then he buys it immediately;
• then he proceeds to the next booth in the clockwise order (regardless of if he bought a candy or not).

Polycarp's money is finite, thus the process will end once he can no longer buy candy at any booth.

Calculate the number of candies Polycarp will buy.

Input

The first line contains two integers nn and TT (1≤n≤2⋅1051≤n≤2⋅105 , 1≤T≤10181≤T≤1018 ) — the number of booths at the fair and the initial amount of burles Polycarp has.

The second line contains nn integers a1,a2,…,ana1,a2,…,an (1≤ai≤1091≤ai≤109 ) — the price of the single candy at booth number ii .

Output

Print a single integer — the total number of candies Polycarp will buy.

Examples

Input

Copy

3 38
5 2 5

Output

Copy

10

Input

Copy

5 21
2 4 100 2 6

Output

Copy

6

Note

Let's consider the first example. Here are Polycarp's moves until he runs out of money:

1. Booth 11 , buys candy for 55 , T=33T=33 ;
2. Booth 22 , buys candy for 22 , T=31T=31 ;
3. Booth 33 , buys candy for 55 , T=26T=26 ;
4. Booth 11 , buys candy for 55 , T=21T=21 ;
5. Booth 22 , buys candy for 22 , T=19T=19 ;
6. Booth 33 , buys candy for 55 , T=14T=14 ;
7. Booth 11 , buys candy for 55 , T=9T=9 ;
8. Booth 22 , buys candy for 22 , T=7T=7 ;
9. Booth 33 , buys candy for 55 , T=2T=2 ;
10. Booth 11 , buys no candy, not enough money;
11. Booth 22 , buys candy for 22 , T=0T=0 .

No candy can be bought later. The total number of candies bought is 1010 .

In the second example he has 11 burle left at the end of his path, no candy can be bought with this amount.

刚开始纯暴力求解：（结果超时）

#include
#include
#include
#include
#include

using namespace std;

const int maxn = 2*1e5+5;
typedef long long LL;
LL a[maxn];

int main()
{
	LL n, T;
	scanf("%lld%lld", &n, &T);
	scanf("%d", &a[0]);
	LL t = a[0];
	for(int i = 1; i < n; i++){
		scanf("%lld", &a[i]);
		t = min(t, a[i]);
	} 
	//printf("%d\n", t);
	int i = 0;
	int cnt = 0;
	while(1){
		if(T < t) break;
		if(a[i%n] <= T) { T -= a[i%n]; cnt++;}
		i++;
	}
	
	printf("%d\n", cnt);
	return 0;
}

 暴力优化（93ms）

#include
#include
#include
#include
#include

using namespace std;

typedef long long LL;
const int maxn = 2*1e5+5;
LL a[maxn];

int main()
{
	LL n, T;
	scanf("%lld%lld", &n, &T);
	for(int i = 0; i < n; i++) scanf("%lld", &a[i]);
	
	LL res = 0;
	while(1){
		LL cnt = 0, sum = 0;
		for(int i = 0; i < n; i++) if(sum + a[i] <= T){sum += a[i]; cnt++; }
		if(cnt == 0) break;
		res += (T / sum)*cnt;
		T = T % sum;
	}	
	
	printf("%lld\n", res);
}