洛谷IDE会输出一个很大的数，盲猜数组越界或者没赋初值，然而我看半天也不知道哪错了...求救("▔□▔)/

#include<bits/stdc++.h>
//#include<windows.h>
using namespace std;
#define ll long long
ll f[30][30][30],k=0;
void print(ll a,ll b,ll c){
	cout<<a<<" "<<b<<" "<<c<<" "<<++k<<endl;
	//if(k>=100)Sleep(1000);
}
ll w(ll a,ll b,ll c){
	//print(a,b,c);
	if(a<=0||b<=0||c<=0)return 1;
	if(f[a][b][c]){
		//cout<<a<<" "<<b<<" "<<c<<" "<<f[a][b][c]<<endl;
		return f[a][b][c];
	}
	if(a<b&&b<c)f[a][b][c]=w(a,b,c-1)+w(a,b-1,c-1)-w(a,b-1,c);
	else f[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);
}
int main(){
	ll a,b,c;
	f[0][0][0]=1;
	while(cin>>a>>b>>c&&a!=-1||b!=-1||c!=-1){
		printf("w(%lld, %lld, %lld) = ",a,b,c);
		if(a<=0||b<=0||c<=0)a=0,b=0,c=0;
		else if(a>20||b>20||c>20)a=20,b=20,c=20;
        w(a,b,c);
		printf("%lld\n",f[a][b][c]);
	}
}