Submission #786516

#	Time	Username	Problem	Language	Result	Execution time	Memory
786516		LuoBo	Aliens (IOI16_aliens)	C++14	0 / 100	1 ms	2332 KiB

aliens

#include "aliens.h"

#include <bits/stdc++.h>
using namespace std;

const int MAXN=100010;
struct node {
    int x, y;
} a[MAXN];
long long f[510][510];

long long min(long long x,long long y) { return x<y ? x : y ; }

long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c) {

    for (int i=0;i<n;i++) {
        if ( r[i]>c[i] ) { a[i+1].x=c[i]+1; a[i+1].y=r[i]+1; }
        else { a[i+1].x=r[i]+1; a[i+1].y=c[i]+1; }
    }
    
    int ans=1e9; 
    memset(f,127,sizeof(f));
    f[0][0]=0;
    for (int i=1;i<=n;i++) {
        for (int opt=1;opt<=k;opt++) {
            for (int j=0;j<i;j++) {
                f[i][opt]=min(f[i][opt],f[j][opt-1]+(a[i].x-a[j+1].x+1)*(a[i].x-a[j+1].x+1));
            }
        }
    }

    for (int opt=1;opt<=k;opt++) ans=min(ans,f[n][opt]);

    return ans;
    
}

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