Submission #404544

#	Time	Username	Problem	Language	Result	Execution time	Memory
404544		teehandsome	Bali Sculptures (APIO15_sculpture)	C++11	0 / 100	1 ms	332 KiB

sculpture

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define endl '\n'
#define INF 1e9+7
#define all(x) x.begin(),x.end()
using namespace std;
using namespace __gnu_pbds;
using ll=long long;
using pii=pair<int,int>;
using ppi=pair<int,pii>;
using oset=tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>;

template<typename T>
void _print(vector<T> x) {cerr<<"{"; for(auto e:x) cerr<<e<<","; cerr<<"}";}
void _print(pii x) {cerr<<"{"<<x.first<<","<<x.second<<"}";}
template<typename T>
void _print(T x) {cerr<<x;}

void dbg() {cerr<<endl;}
template<typename Head,typename... Tail>
void dbg(Head H,Tail... T) {
    _print(H);
    if(sizeof...(T)) cerr<<",";
    else cerr<<"\"]";
    dbg(T...);
}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:[\"",dbg(__VA_ARGS__)

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int mxn=101;
int n,a,b;
ll dp[mxn][mxn];
ll sum[mxn];
// dp[i][j] = minval from a[0,i] with j group
vector<int> ar;

ll f(int l,int r) {
    if(!l) return sum[r];
    return sum[r]-sum[l-1];
}

ll dfs(int pos,int cnt) {
    if(pos<0 or cnt<=0) return 0;
    if(cnt>b) return 1e16;
    if(dp[pos][cnt]!=-1) return dp[pos][cnt];
    ll res=1e16;

    for(int i=pos-1;i>=0;i--) {
        res=min(res,dfs(i,cnt-1)|f(i+1,pos));
    }
    return dp[pos][cnt]=res;
}

int main () {
    ios::sync_with_stdio(false); cin.tie(0);
    cin>>n>>a>>b;
    ar.resize(n);
    for(int i=0;i<n;i++) cin>>ar[i];
    memset(dp,-1,sizeof(dp));
    for(int i=0;i<n;i++) {
        sum[i]=ar[i];
        if(i) sum[i]+=sum[i-1];
        dp[i][1]=sum[i];
    }

    dp[0][0]=0;
    ll ans=1e16;
    for(int i=a;i<=b;i++) {
        ans=min(ans,dfs(n-1,i));
    }
    cout<<ans<<endl;

}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 25
• Subtask 5: 0 / 29