Submission #712656

#	Time	Username	Problem	Language	Result	Execution time	Memory
712656		minhnhatnoe	Aliens (IOI16_aliens)	C++17	0 / 100	1 ms	340 KiB

aliens

#include "aliens.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll sq(ll a) {return a * a;}
ll take_photos(int n, int m, int k, vector<int> r, vector<int> c){
    sort(r.begin(), r.end());
    vector<ll> dp1(n, 1e15), dp2(n);
    while (k--){
        for (int i=0; i<n; i++){
            dp2[i] = dp1[i];
            for (int j=0; j<=i; j++){
                dp2[i] = min(dp2[i], (j ? dp1[j-1] : 0) + sq(r[i] - r[j] + 1));
            }
        }
        swap(dp1, dp2);
    }
    cout << dp2.back() << "\n";
}

Compilation message (stderr)

aliens.cpp: In function 'll take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:19:1: warning: no return statement in function returning non-void [-Wreturn-type]
   19 | }
      | ^

• Subtask 1: 0 / 4
• Subtask 2: 0 / 12
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 40