HDU 3130 17多校7 Kolakoski(思维简单)
For each test case:
A single line contains a positive integer n(1≤n≤107).
A single line contains a nonnegative integer, denoting the answer.
#include<iostream>
#include<cstdio>
#include<cstring>
#include<queue>
#include<algorithm>
#include<cmath>
using namespace std;
const int maxn=1e7+;
int a[maxn];
int b[maxn]; void pre()
{
int cnta=,cntb=;
a[]=;b[]=;b[]=;
for(cnta=,cntb=;cnta<maxn&&cntb<maxn;cnta++)
{
a[cnta]=b[cnta];
if(a[cnta]==)
{
if(b[cntb]==)
{
b[cntb+]=;
}
else
{
b[cntb+]=;
}
cntb++;
}
else
{
if(b[cntb]==)
{
b[cntb+]=;
b[cntb+]=;
}
else
{
b[cntb+]=;
b[cntb+]=;
}
cntb+=;
}
}
} int main()
{
pre();
int T,n;
scanf("%d",&T);
while(T--)
{
scanf("%d",&n);
printf("%d\n",b[n]);
}
return ;
}
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