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codeforces 679 B

2016-06-09 15:26 316 查看
只有2种情况,一直搜索下去就行了 ,一个是剩余的数,一个是答案一,即block,一个是增加的用到的答案

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int maxn=1e5+10;
ll fac[maxn];ll bcnt , bsum;
void dfs(ll remain , ll cnt , ll sum){
if (remain <= 0) {
if (cnt > bcnt){
bcnt = cnt ; bsum = sum;
}
else if(cnt == bcnt && sum > bsum){
bsum = sum ;
}
return ;
}
//  cout<<" remain = "<<remain <<" cnt = "<< cnt <<" sum = "<<sum<<endl;
//  system (" pause ");
int now = lower_bound(fac , fac + maxn - 5, remain) - fac;
if(fac[now] > remain){
now --;
}
//  cout << "now = " << now <<endl;
//  cout << fac[now] << endl;
//if(now == -1 ) dfs(0 , cnt + 1, sum + 1);
dfs(remain - fac[now] , cnt + 1 ,sum + fac[now]);
dfs(fac[now] - 1 - fac[now - 1], cnt + 1 ,sum + fac[now - 1]);

}
int main () {
//  fac[0] = 1;
for(ll i = 1 ;i <= maxn - 5 ;i ++){
fac[i] = i * i * i;
}
ll m;
while(scanf("%lld" , &m) != EOF){
bcnt = 0 ; bsum = 0;
dfs(m , 0 , 0);
cout << bcnt << " " <<bsum << endl;
}

}
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标签:  codeforces