Submission #447901

#	Time	Username	Problem	Language	Result	Execution time	Memory
447901		blue	Road Construction (JOI21_road_construction)	C++17	5 / 100	2323 ms	2097156 KiB

road_construction

#include <iostream>
#include <algorithm>
using namespace std;

long long abs_diff(long long a, long long b)
{
    return max(a-b, b-a);
}

int main()
{
    int N, K;
    cin >> N >> K;

    long long X[N], Y[N];
    for(int i = 0; i < N; i++) cin >> X[i] >> Y[i];


    vector<long long> res;
    for(int i = 0; i < N; i++)
        for(int j = i+1; j < N; j++)
            res.push_back(abs_diff(X[i], X[j]) + abs_diff(Y[i], Y[j]));

    sort(res.begin(), res.end());

    while(res.size() > K) res.pop_back();

    for(long long r:res) cout << r << ' ';
    cout << '\n';
}

Compilation message (stderr)

road_construction.cpp: In function 'int main()':
road_construction.cpp:26:22: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   26 |     while(res.size() > K) res.pop_back();
      |           ~~~~~~~~~~~^~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 20
• Subtask 5: 0 / 27
• Subtask 6: 0 / 35