UVa : 10940 (Throwing cards away II)


// http://uva.onlinejudge.org/external/109/10940.html

// @BEGIN_OF_SOURCE_CODE

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <string>
#include <cctype>
#include <stack>
#include <queue>
#include <list>
#include <vector>
#include <map>
#include <sstream>
#include <bitset>
#include <utility>
#include <set>
#include <math.h>
#define pi acos(-1.0)
#define N 1000000
using namespace std;

int ans [500000 + 5];

int main ()
{
    ans [1] = 1;
    ans [2] = 2;

    int next = 2;

    for ( int i = 3; i <= 500000; i++ ) {
        if ( i < next ) next = 2;
        ans [i] = next;
        next += 2;
    }

    int n;

    while ( scanf ("%d", &n) && n ) {
        printf ("%d\n", ans [n]);
    }

    return 0;
}

// @END_OF_SOURCE_CODE

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s