Submission #734792

#	Time	Username	Problem	Language	Result	Execution time	Memory
734792		ReLice	Bali Sculptures (APIO15_sculpture)	C++14	0 / 100	1091 ms	460 KiB

sculpture

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define pb push_back
#define endl "\n"
#define fr first
#define sc second
#define sz size()
#define bc back()
using namespace std;
/*
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<ll, null_type,less_equal<ll>, rb_tree_tag,tree_order_statistics_node_update>
void fre(string s){freopen((s+".in").c_str(),"r",stdin);freopen((s+".out").c_str(),"w",stdout);}*/
void start(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}
const ll inf=1e9+7;
const ll mod=1e9+7;
const ll N=2e3+7;
ll pref[N],n,l,r;
vector<vector<ll> > g(N);
bool check(ll v,ll val,ll d){
    if(v==n+1 && l<=d && d<=r) return true;
    for(auto i : g[v]){
        if((pref[i]-pref[v-1]) & (1<<val)) continue;
        if(check(i+1,val,d+1)){
            return true;
        }
    }
    return false;
}
void ers(ll val){
    for(ll i=1;i<=n;i++){
        for(ll j=0;j<g[i].sz;j++){
            if((pref[g[i][j]]-pref[i-1])&(1<<val)){
                if(j!=g[i].sz-1){
                    swap(g[i][j],g[i].bc);
                }
                g[i].pop_back();
                j--;
            }
        }
    }
}
void solve(){
    ll i,j,q,sum=0,ans=0,b,mx=-1,c=1,m,t;
    ll k;
    cin>>n>>l>>r;
    vector <ll> v;
    v.pb(0);
    for(i=0;i<n;i++){
        cin>>b;
        v.pb(b);
    }
    for(i=1;i<=n;i++){
        pref[i]=pref[i-1]+v[i];
    }
    for(i=1;i<=n;i++){
        for(j=i;j<=n;j++){
            g[i].pb(j);
        }
    }
    for(i=30;i>=0;i--){
        if(check(1,i,0)){
            ers(i);
        }
        else{
            ans+=(1<<i);
        }
    }
    cout<<ans<<endl;

}
signed main(){
    start();
    //fre("");
    ll t=1;
    //cin>>t;
    while(t--) solve();
}
/*
6 1 3
8 1 2 1 5 4
*/

Compilation message (stderr)

sculpture.cpp: In function 'void ers(long long int)':
sculpture.cpp:39:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for(ll j=0;j<g[i].sz;j++){
      |                     ^
sculpture.cpp:41:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |                 if(j!=g[i].sz-1){
      |                    ~^~~~~~~~~~~
sculpture.cpp: In function 'void solve()':
sculpture.cpp:51:12: warning: unused variable 'q' [-Wunused-variable]
   51 |     ll i,j,q,sum=0,ans=0,b,mx=-1,c=1,m,t;
      |            ^
sculpture.cpp:51:14: warning: unused variable 'sum' [-Wunused-variable]
   51 |     ll i,j,q,sum=0,ans=0,b,mx=-1,c=1,m,t;
      |              ^~~
sculpture.cpp:51:28: warning: unused variable 'mx' [-Wunused-variable]
   51 |     ll i,j,q,sum=0,ans=0,b,mx=-1,c=1,m,t;
      |                            ^~
sculpture.cpp:51:34: warning: unused variable 'c' [-Wunused-variable]
   51 |     ll i,j,q,sum=0,ans=0,b,mx=-1,c=1,m,t;
      |                                  ^
sculpture.cpp:51:38: warning: unused variable 'm' [-Wunused-variable]
   51 |     ll i,j,q,sum=0,ans=0,b,mx=-1,c=1,m,t;
      |                                      ^
sculpture.cpp:51:40: warning: unused variable 't' [-Wunused-variable]
   51 |     ll i,j,q,sum=0,ans=0,b,mx=-1,c=1,m,t;
      |                                        ^
sculpture.cpp:52:8: warning: unused variable 'k' [-Wunused-variable]
   52 |     ll k;
      |        ^

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