This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "aliens.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pi;
typedef pair<ll,ll> pl;
#define endl '\n'
#define all(x) (x).begin(),(x).end()
#define F first
#define S second
#ifdef dremix
#define p(x) cerr<<#x<<" = "<<x<<endl;
#define p2(x,y) cerr<<#x<<" , "<<#y<<" = "<<x<<" , "<<y<<endl;
#define pp(x) cerr<<#x<<" = "<<x.F<<"-"<<x.S<<endl;
#define pv(x) cerr<<#x<<" = {";for(auto v : x)cerr<<v<<", ";cerr<<"}"<<endl;
#define ppv(x) cerr<<#x<<" = {";for(auto v : x)cerr<<v.F<<"-"<<v.S<<", ";cerr<<"}"<<endl;
#else
#define p(x) {}
#define p2(x,y) {}
#define pp(x) {}
#define pv(x) {}
#define ppv(x) {}
#endif
const int N = 1005;
const int MOD = 1e9+7;
const ll INF = 1e18+5;
struct ano{
int x,y,id;
};
bool cmp(ano a, ano b){
return min(a.x,a.y) > min(b.x,b.y);
}
bool v[N][N];
void clean(vector<ano> &a){
while(!a.empty() && v[a.back().x][a.back().y])
a.pop_back();
}
void print(vector<ano> &arr){
return;
for(auto x : arr){
cerr<<x.x<<" "<<x.y<<" "<<x.id<<endl;
}
}
long long take_photos(int n, int m, int K, std::vector<int> r, std::vector<int> c) {
int i,j,k;
//vector<ano> arr(n);
set<pi> s;
for(i=0;i<n;i++){
s.insert({r[i],c[i]});
}
vector<int> arr;
n = s.size();
for(auto x : s)
arr.push_back(x.F);
//bool v[m][m] = {};
int dp[n][n][K];
//memset(dp,MOD,sizeof(dp));
for(i=0;i<n;i++)for(j=0;j<=i;j++)for(k=0;k<K;k++){
//cerr<<dp[i][j][k]<<" ";
dp[i][j][k] = MOD;
}
dp[0][0][K-1] = 1;
int pref[n+1];
int curr,nxt,net;
pv(arr)
for(i=0;i<n-1;i++)for(j=0;j<=i;j++){
curr = (arr[i]-arr[j]+1)*(arr[i]-arr[j]+1);
nxt = (arr[i+1]-arr[j]+1)*(arr[i+1]-arr[j]+1);
net = nxt - curr;
for(k=0;k<K;k++){
if(k > 0)
dp[i+1][i+1][k-1] = min(dp[i+1][i+1][k-1],dp[i][j][k] + 1);
dp[i+1][j][k] = min(dp[i+1][j][k],dp[i][j][k]+net);
}
}
int ans = MOD;
for(j=0;j<n;j++)
for(i=0;i<K;i++)
ans = min(ans,dp[n-1][j][i]);
return ans;
}
Compilation message (stderr)
aliens.cpp: In function 'long long int take_photos(int, int, int, std::vector<int>, std::vector<int>)':
aliens.cpp:75:9: warning: unused variable 'pref' [-Wunused-variable]
75 | int pref[n+1];
| ^~~~
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