#include<iostream>
#include<vector>
#include<string>
#include<set>
#include<map>
#include<algorithm>
#include<queue>
#include<stack>
using namespace std;
int main(){
int n, m, k;
while (cin >> n >> m >> k){
vector<int> prices(n + 1);
for (int i = 1; i <= n; i++) cin >> prices[i];
int i = m - 1;
int j = m + 1;
int distance = 0;
while (i >= 1 || j <= n){
if (i >= 1){
if (prices[i] <= k&&prices[i] != 0){
distance = (m - i) * 10;
break;
}
}
if (j <= n){
if (prices[j] <= k&&prices[j] != 0){
distance = (j - m) * 10;
break;
}
}
i--;
j++;
}
cout << distance << endl;
}
return 0;
}
796A - Buying A House
最新推荐文章于 2024-12-08 21:32:12 发布