Submission #16670

#	Time	Username	Problem	Language	Result	Execution time	Memory
16670		CodingBug	올림픽 피자 (tutorial5)	C++98	100 / 100	82 ms	1732 KiB

tutorial5

#include "pizza.h"
#include <queue>
#define M 8

using namespace std;

int p,a[M],c;
queue<int> Q[1<<M];

void Init() {
    int i;
    p=0,c=-1;
    for(i=0;i<M;i++) a[i]=0;
    for(i=0;i<(1<<M);i++) while(!Q[i].empty()) Q[i].pop();
}

void Order(int N, int *A) {
    int ord=0,i;
    c++;
    for(i=0;i<N;i++) ord|=(1<<A[i]);
    if((p&ord)==ord){
        Bake(c);
        for(i=0;i<M;i++){
            if(ord&(1<<i)){
                a[i]--;
                if(!a[i]){
                    p-=(1<<i);
                }
            }
        }
    }
    else{
        Q[ord].push(c);
    }
}

void Delivery(int I) {
    a[I]++;
    if(a[I]==1){
        p|=(1<<I);
        int mn=c+1,v=-1,i;
        for(i=0;i<(1<<M);i++){
            if((p&i)==i && !Q[i].empty()){
                if(mn>Q[i].front()){
                    mn=Q[i].front();
                    v=i;
                }
            }
        }
        if(v!=-1){
            Bake(Q[v].front());
            for(i=0;i<M;i++){
                if(v&(1<<i)){
                    a[i]--;
                    if(!a[i]) p-=(1<<i);
                }
            }
            Q[v].pop();
        }
    }
}

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 20 / 20
• Subtask 4: 30 / 30