Rikka with Sequence V
构造
#pragma comment(linker, "/STACK:102400000,102400000") #include<stdio.h> #include<string.h> #include<stdlib.h> #include<vector> #include<algorithm> #include<iostream> #include<map> #include<queue> #include<stack> #include<string> #include<functional> //#include<bits/stdc++.h> using namespace std; typedef long long lint; int cmp(const void * x, const void * y) { #define datatype int datatype dx = *((datatype *)(x)), dy = *((datatype *)(y)); //x < y return dx > dy ? 1 : -1; #undef datatype } lint dp[1005][1005]; const int mod = 1000000007; int main() { #ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); #endif std::ios::sync_with_stdio(0), cin.tie(0); int n; cin >> n; for (int i = 1; i <= n; i += 2) cout << i << ' '; for (int i = n - n % 2; i > 0; i -= 2) cout << i << ' '; return 0; }