求调！

Squirrel_GZQ @ 2024-05-05 12:37:29

#include<bits/stdc++.h>
using namespace std;
long long g[25][25][25];
bool vis[25][25][25];
int w(long long a, long long b, long long c){
    if(a>25||b>25||c>25) g[a][b][c]= w(20,20,20);
    if(vis[a][b][c]==1) return g[a][b][c];
    else if(a<=0||b<=0||c<=0){
        g[a][b][c]= 1;
    } 
    else if(a>20||b>20||c>20){
        g[a][b][c]= w(20,20,20);
    }
    else if(a<b&&b<c){
        g[a][b][c]=w(a,b,c-1)+w(a,b-1,c-1)-w(a,b-1,c);
    } 
    else{
        g[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);
    } 
    vis[a][b][c]=1;
    return g[a][b][c];
}
int main(){
    long long a,b,c;
    while(cin>>a>>b>>c){
        if(a==-1&&b==-1&&c==-1) return 0;
        printf("w(%d, %d, %d) = %lld\n",a,b,c,w(a,b,c));
    }
    return 0;
}

by Qiu101029 @ 2024-05-05 15:34:50

@Squirrel_GZQ

long long g[25][25][25];

if(a>25||b>25||c>25) g[a][b][c]= w(20,20,20);

这里会越界

by Qiu101029 @ 2024-05-05 15:37:12

而且还不止这点问题

by Qiu101029 @ 2024-05-05 15:49:50

#include<bits/stdc++.h>
using namespace std;
long long g[25][25][25];
bool vis[25][25][25];
//避免所有可能的越界
int w(long long a, long long b, long long c){ 
    if(a<=0||b<=0||c<=0){
        return 1;//直接返回1
    } 
    else if(a>20||b>20||c>20){
        return w(20,20,20);//同理
    }
    else if(vis[a][b][c]==1){
        return g[a][b][c];
    }
    else if(a<b&&b<c){
        g[a][b][c]=w(a,b,c-1)+w(a,b-1,c-1)-w(a,b-1,c);
    } 
    else{
        g[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);
    } 
    vis[a][b][c]=1;
    return g[a][b][c];
}
int main(){
    long long a,b,c;
    while(cin>>a>>b>>c){
        if(a==-1&&b==-1&&c==-1) return 0;
        printf("w(%lld, %lld, %lld) = %d\n",a,b,c,w(a,b,c));//%d对应int类型，%lld对应long long类型
    }
    return 0;
}

by Squirrel_GZQ @ 2024-05-05 21:19:43

@Qiu101029 谢谢谢谢！ 这么久终于有人回我了！

by Squirrel_GZQ @ 2024-05-05 21:26:38

@Qiu101029 已关