100,Unaccepted

P1464 Function

lyq123bc @ 2024-07-04 20:45:17

#include<iostream>
#include<string>
#include<cstring>
#include<algorithm>
#include<stack>
#include<queue>
#include<vector>
#include<deque>
#include<set>
#include<map>
using namespace std;
typedef int64_t ll;
const int N=1e5+10;
ll A[25][25][25],B[25][25][25];
bool visa[25][25][25],visb[25][25][25];

ll w(ll a,ll b,ll c)
{
    if(a<=0||b<=0||c<=0) return 1;
    if(a>20||b>20||c>20) return w(20,20,20);
    if(a<b&&b<c)
    {
        if(visa[a][b][c]) return A[a][b][c];
        A[a][b][c]=w(a,b,c-1)+w(a,b-1,c-1)-w(a,b-1,c);
        visa[a][b][c]=1;
        return A[a][b][c];
    }
    if(visb[a][b][c]) return B[a][b][c];
    B[a][b][c]=w(a-1,b,c)+w(a-1,b-1,c)+w(a-1,b,c-1)-w(a-1,b-1,c-1);
    visb[a][b][c]=1;
    return B[a][b][c];
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    ll a,b,c;
    for(int i=1;1;++i)
    {
        cin>>a>>b>>c;
        if(a==-1&&b==-1&&c==-1) break;
        memset(visa,0,sizeof(visa));
        memset(visb,0,sizeof(visb));
        cout<<"w("<<a<<", "<<b<<", "<<c<<") = "<<w(a,b,c)<<endl;
    }

    return 0;
}

by lyq123bc @ 2024-07-04 20:47:14

record_link


by HJY2022 @ 2024-07-04 20:52:17

所以?


by xiaokang_suancai @ 2024-07-08 09:59:32

@lyq123bc 没事这个点我之前也TLE了,我后来看了一下输入输出的数据,发现他输入的是几百行相同的数据,你调用函数之前特判一下是否重复就行了


|