Submission #1169676

#	Time	Username	Problem	Language	Result	Execution time	Memory
1169676		SmuggingSpun	Road Construction (JOI21_road_construction)	C++20	5 / 100	48 ms	7084 KiB

road_construction

#include<bits/stdc++.h>
#define taskname "B"
using namespace std;
typedef long long ll;
int n, k;
namespace sub1{
    void solve(){
        vector<ll>x(n), y(n);
        for(int i = 0; i < n; i++){
            cin >> x[i] >> y[i];
        }
        vector<ll>a;
        for(int i = 0; i < n; i++){
            for(int j = i + 1; j < n; j++){
                a.emplace_back(abs(x[i] - x[j]) + abs(y[i] - y[j]));
            }
        }
        sort(a.begin(), a.end());
        for(int i = 0; i < k; i++){
            cout << a[i] << "\n";
        }
    }
}
int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    if(fopen(taskname".inp", "r")){
        freopen(taskname".inp", "r", stdin);
    }
    cin >> n >> k;
    if(n <= 1000){
        sub1::solve();
    }
}

Compilation message (stderr)

road_construction.cpp: In function 'int main()':
road_construction.cpp:27:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |         freopen(taskname".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

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