bzoj1042: [HAOI2008]硬币购物

#include<cstdio>
#include<cstring>
#include<cctype>
#include<algorithm>
#define rep(i,s,t) for(int i=s;i<=t;i++)
#define dwn(i,s,t) for(int i=s;i>=t;i--)
#define clr(x,c) memset(x,c,sizeof(x))
#define ll long long
int read(){
    int x=0;char c=getchar();
    while(!isdigit(c)) c=getchar();
    while(isdigit(c)) x=x*10+c-‘0‘,c=getchar();
    return x;
}
const int nmax=1e5+5;
ll f[nmax];int c[5],d[5];
int main(){
    rep(i,1,4) c[i]=read();
    f[0]=1;
    rep(i,1,4) rep(j,c[i],100000) f[j]+=f[j-c[i]];
    int n=read();
    rep(i,1,n){
        rep(j,1,4) d[j]=read();
        int m=read(),cnt,tmp;ll ans=0;
        rep(j,0,15){
            cnt=0;tmp=m;
            for(int k=j,t=1;k;k>>=1,t++) if(k&1) tmp-=c[t]*(d[t]+1),cnt++;
            if(tmp<0) continue;
            if(cnt&1) ans-=f[tmp];
            else ans+=f[tmp];
        }
        printf("%lld\n",ans);
    }
    return 0;
}