UVa 133 - The Dole Queue - 寒月 - C++博客

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UVa 133 - The Dole Queue

题目链接：http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=103&page=show_problem&problem=69

#include <iostream>

#include <list>

#include <iterator>

#include <iomanip>

using namespace std;

int N, k, m;

list<int> dole;

int main()

{

while(cin >> N >> k >> m)

{

if(!(N || k || m)) break;

dole.clear();

for(int i = 1; i <= N; ++i)

dole.push_back(i);

list<int>::iterator is, ie;

is = dole.begin();

ie = dole.end();

--ie;

while(true)

{

for(int i = 1; i < k; ++i)

{

++is;

if(is == dole.end()) is = dole.begin();

}

for(int i = 1; i < m; ++i)

{

if(ie == dole.begin())

{

ie = dole.end();

}

--ie;

}

if(is == ie)

{

cout << setw(3) << *is;

if(dole.size() != 1)

{

cout << ',';

is = dole.erase(is);

if(is == dole.begin())

{

ie = dole.end();

--ie;

}

else

{

ie = is;

--ie;

}

if(is == dole.end()) is = dole.begin();

}

else

{

cout << endl;

break;

}

}

else

{

cout << setw(3) << *is << setw(3) << *ie;

list<int>::iterator it1 = is;

list<int>::iterator it2 = ie;

if(dole.size() != 2)

{

cout << ',';

++is;

while(is == it2) ++is;

++ie;

while(ie == it1) ++ie;

dole.erase(it1);

dole.erase(it2);

if(is == dole.end()) is = dole.begin();

if(ie == dole.begin())

{

ie = dole.end();

--ie;

}

else --ie;

}

else

{

cout << endl;

break;

}

}

}

}

return 0;

}

posted on 2011-11-19 22:12 wuxu 阅读(261) 评论(0) 编辑收藏引用所属分类: 模拟

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