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http://whu.contest.codeforces.com/group/LqmZzHyOQN/contest/234192/problem/B
題解:按題目操作就行了?
/* *@Author: STZG *@Language: C++ */ #include <bits/stdc++.h> #include<iostream> #include<algorithm> #include<cstdlib> #include<cstring> #include<cstdio> #include<string> #include<vector> #include<bitset> #include<queue> #include<deque> #include<stack> #include<cmath> #include<list> #include<map> #include<set> //#define DEBUG #define RI register int using namespace std; typedef long long ll; //typedef __int128 lll; const int N=10000; const int MOD=1e9+7; const double PI = acos(-1.0); const double EXP = 1E-8; const int INF = 0x3f3f3f3f; int t,n,m,k,q,p;int main() { #ifdef DEBUGfreopen("input.in", "r", stdin);//freopen("output.out", "w", stdout); #endifscanf("%d%d%d",&n,&p,&k);if(1<p-k){cout << "<< " ;}for(int i=max(1,p-k);i<p;i++)cout << i << " " ;cout << "("<<p<<") " ;for(int i=p+1;i<=min(p+k,n);i++)cout << i << " " ;if(n>p+k){cout << ">>" ;}cout << endl;//cout << "Hello world!" << endl;return 0; }?
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