Submission #344450

#	Time	Username	Problem	Language	Result	Execution time	Memory
344450		Sparky_09	Aliens (IOI16_aliens)	C++17	0 / 100	1 ms	364 KiB

aliens

#include "bits/stdc++.h"
using namespace std;
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
#define ll long long 
//typedef long long int;
typedef pair<int, int> pii;
typedef vector<int> vi;
 
#include "aliens.h"
 
 
long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c) {
    
  ll dp[n+10][n+10];
    memset(dp, 0x3f, sizeof dp);
    /*
      dp[ind][k] = min(dp[int-1][k-1]) + area
    */
    vector<pair<ll, ll>> vpi;
    for(int i = 0; i < n; i++) vpi.emplace_back(c[i], r[i]);
    sort(vpi.begin(), vpi.end());
    //dp[0][1] = 1; 

  for(int i = 0; i < n; i++) dp[i][1] = 1;
    for(int i = 0; i < n; i++){
      for(int j = 0; j <= i; j++){ // previous one
        for(int l = 1; l <= k; l++){
        	
          ll curr, curc, prevr, prevc;
          curc = vpi[i].first; curr = vpi[i].second; 
          prevc = vpi[j].first; prevr = vpi[j].second;
          ll area = (curc - prevc + 1) * (curc - prevc + 1);
          
          if(j==0) dp[i][l] = min(dp[i][l], min(dp[i][l-1], area));
          else dp[i][l] = min(dp[i][l], min(dp[i][l-1], dp[j-1][l-1] + area));
        }
      }
    }
	if(dp[n-1][k]==2) dp[n-1][k]=1;	
    return dp[n-1][k];
 
  
}

Compilation message (stderr)

aliens.cpp: In function 'long long int take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:31:14: warning: variable 'curr' set but not used [-Wunused-but-set-variable]
   31 |           ll curr, curc, prevr, prevc;
      |              ^~~~
aliens.cpp:31:26: warning: variable 'prevr' set but not used [-Wunused-but-set-variable]
   31 |           ll curr, curc, prevr, prevc;
      |                          ^~~~~

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