2014-10-31 17:19:18
总结：这场cf前三题都好做，D的话有点诡异，st：533/3003
A：简单构造，5min（太慢）
1 /************************************************************************* 2 > File Name: a.cpp 3 > Author: Nature 4 > Mail: 564374850@qq.com 5 > Created Time: Fri 31 Oct 2014 03:09:44 PM CST 6 ************************************************************************/ 7 8 #include <cstdio> 9 #include <cstring> 10 #include <cstdlib> 11 #include <cmath> 12 #include <vector> 13 #include <map> 14 #include <set> 15 #include <stack> 16 #include <queue> 17 #include <iostream> 18 #include <algorithm> 19 using namespace std; 20 #define lp (p << 1) 21 #define rp (p << 1|1) 22 #define getmid(l,r) (l + (r - l) / 2) 23 #define MP(a,b) make_pair(a,b) 24 typedef long long ll; 25 const int INF = 1 << 30; 26 27 int main(){ 28 int n,k; 29 scanf("%d%d",&n,&k); 30 int pos = n; 31 while(k >= 1){ 32 printf("%d ",pos--); 33 --k; 34 } 35 for(int i = 1; i <= pos; ++i) 36 printf("%d ",i); 37 puts(""); 38 return 0; 39 }