제출 #872251

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
872251		Matjaz	Pairs (IOI07_pairs)	C++14	29 / 100	4089 ms	7036 KiB

pairs

//
//  IOI2007Pairs.cpp
//  
//
//  Created by Matjaz Leonardis on 12/11/2023.
//

#include <iostream>
#include <vector>
#include <stdlib.h>

using namespace std;

int B,N,D,M;

int main(){
    
    cin >> B >> N >> D >> M;
    
    vector<vector<int> > c(N, vector<int> (B));
    
    for (int i=0;i<N;i++){
        for (int j=0;j<B;j++) cin >> c[i][j];
    }
    
    long long pairs=0;
    
    for (int i=0;i<N;i++){
        for (int j=i+1;j<N;j++){
            
            long long distance = 0;
            
            for (int k=0;k<B;k++) distance += abs(c[i][k] - c[j][k]);
            
            if (distance <= D) pairs++;
        }
    }
    
    cout << pairs << endl;
    
    return 0;
}

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