C++ 解法, 执行用时: 3ms, 内存消耗: 448K, 提交时间: 2022-06-01 19:21:21

#include<bits/stdc++.h>
using namespace std;
int n, x, c, a, ans; 
int main()
{
	for(cin >> n >> x >> c; cin >> a; ans += (a >= c && abs(a-x) <= 3));
	cout << ans * (x >= c);
}

pypy3 解法, 执行用时: 122ms, 内存消耗: 38680K, 提交时间: 2022-06-01 19:20:27

n, x, c = map(int, input().split())
a = list(map(int, input().split()))
print(0 if x < c else sum([1 for i in a if i >= c and abs(i - x) <= 3]))

Python3 解法, 执行用时: 44ms, 内存消耗: 4520K, 提交时间: 2023-05-23 09:27:59

n,x,c=map(int,input().split())
a,b=max(c,x-3),x+3
print((x>=c)*sum(a<=t<=b  for t in map(int,input().split())))