Submission #1020115

#	Time	Username	Problem	Language	Result	Execution time	Memory
1020115		isaachew	Super Dango Maker (JOI22_dango3)	C++17	100 / 100	2473 ms	732 KiB

dango3

#include "dango3.h"
#include <vector>

/*
 Find maximum amount by flipping everything
 */
void Solve(int N, int M){
    std::vector<int> groups(N*M,-1);
    for(int i=0;i<N*M;i++){
        int lower=-1,upper=M-1;
        while(lower+1<upper){
            int mid=(lower+upper)/2;
            std::vector<int> ugroup;
            for(int j=0;j<N*M;j++){
                if(groups[j]!=mid&&j!=i)ugroup.push_back(j+1);
            }
            if(Query(ugroup)<M-1){
                lower=mid;
            }else{
                upper=mid;
            }
        }
        groups[i]=upper;
    }
    for(int i=0;i<M;i++){
        std::vector<int> curgroup;
        for(int j=0;j<N*M;j++){
            if(groups[j]==i)curgroup.push_back(j+1);
        }
        Answer(curgroup);
    }
}

• Subtask 1: 2 / 2
• Subtask 2: 5 / 5
• Subtask 3: 15 / 15
• Subtask 4: 78 / 78