xmoj142

https://code.mi.com/problem/list/view?id=142

暴力。

#include <bits/stdc++.h>
using namespace std;
const int N = 1e7+7;
int vis[N];
int a,b,c,d,e;
int main(){
    ios::sync_with_stdio(false);
    cin>>a>>b>>c>>d>>e;
    for(int i=-50;i<=50;i++){
        if(!i)continue;
        for(int j=-50;j<=50;j++){
            if(!j)continue;
            for(int k=-50;k<=50;k++){
                if(!k)continue;
                int ans = a*i*i*i+b*j*j*j+c*k*k*k;
                ans=abs(ans);
                if(ans<=1e7)vis[ans]++;
            }
        }
    }
    int ans = 0;
    for(int i=-50;i<=50;i++){
        if(!i)continue;
        for(int j=-50;j<=50;j++){
            if(!j)continue;
            int tmp = d*i*i*i+e*j*j*j;
            tmp = abs(tmp);
            if(tmp<=1e7)ans+=vis[tmp];
        }
    }
    cout<<ans/2<<endl;
}