Submission #966966

#	Time	Username	Problem	Language	Result	Execution time	Memory
966966		MarwenElarbi	Aliens (IOI16_aliens)	C++17	0 / 100	1 ms	348 KiB

aliens

//#include "aliens.h"
#include <bits/stdc++.h>
using namespace std;
long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c){
    set<int> st;
    for (int i = 0; i < n; ++i)
    {
        st.insert(r[i]);
    }
    if(k>=n) return st.size();
    vector<int> tab;
    tab.push_back(-1);
    for(auto u:st) tab.push_back(u);
    int dp[n+1][k+1];
    for (int i = 0; i <= n; ++i)
    {
        for (int j = 0; j <= k; ++j)
        {
            dp[i][j]=1e9;
        }
    }
    int ans=m*m;
    dp[0][0]=0;
    for (int i = 1; i <= n; ++i)
    {
        int lst=tab[i];
        int cur=1;
        for (int j = i; j > 0 ; --j)
        {
            cur+=lst-tab[j];
            lst=tab[j];
            //cout <<i<<" "<<j<<" "<<cur<<" "<<dp[j-1][1]<<endl;
            for (int t = 1; t <= k; ++t)
            {
                dp[i][t]=min(dp[i][t],dp[j-1][t-1]+cur*cur);
            }
        }
    }
    for (int i = 0; i <= k; ++i)
    {
       ans=min(ans,dp[n][k]); 
    }
    return ans;
}
/*int main() {
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif
    //cout <<"aaa"<<endl;
    int n, m, k;
    assert(3 == scanf("%d %d %d", &n, &m, &k));
    std::vector<int> r(n), c(n);
    for (int i = 0; i < n; i++) {
        assert(2 == scanf("%d %d", &r[i], &c[i]));
    }
    long long ans = take_photos(n, m, k, r, c);
    printf("%lld\n", ans);
    return 0;
}*/

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