Submission #21957

#	Time	Username	Problem	Language	Result	Execution time	Memory
21957		mohammad_kilani	Bali Sculptures (APIO15_sculpture)	C++14	0 / 100	0 ms	3236 KiB

sculpture

#include<bits/stdc++.h>
using namespace std;
const int N = 111;
int n , a , b , arr[N];
bool dp[N][N][50];
bool vis[N][N][50];
bool cantake[N][N];
vector<pair<int,int > > v;
void printbinary(long long num){
    for(int i=32;i>=0;i--){
        cout << ((num>>i)&1);
    }
    cout << endl;

}

bool solve(int i,int j,int bit){
    if(!cantake[i][j])
        return false;
    if(j > b)
        return false;
    if(i == n){
        if(j >= a)
            return true;
        return false;
    }
    if(vis[i][j][bit] == true)
        return dp[i][j][bit];
    vis[i][j][bit] = true;
    long long sum = 0 ;
    bool can = false;
    for(int k = i;k<n;k++){
        sum += (long long)arr[k];
        long long num = (sum >> (long long)bit);
        if((num&1) == 1){
            v.push_back(make_pair(k+1,j+1));
            continue;
        }
        if(solve(k+1,j+1,bit) == true)
            can = true;
        else
            v.push_back(make_pair(k+1,j+1));
    }
    if(can == false){
        v.push_back(make_pair(i,j));
    }
    return dp[i][j][bit] = can;
}

int main(){
    //freopen("in.txt","r",stdin);
    memset(dp,-1,sizeof(dp));
    memset(cantake,1,sizeof(cantake));
    scanf("%d%d%d",&n,&a,&b);
    for(int i=0;i<n;i++){
        scanf("%d",&arr[i]);
    }
    long long ans = 0 ;
    for(int i=46;i>=0;i--){
            v.clear();
        if(!solve(0,0,i)){
            ans += ((long long)1 << (long long)i);
        }
        else{
            for(int j=0;j<(int)v.size();j++){
                cantake[v[j].first][v[j].second] = false;
            }
        }
    }
    cout << ans << endl;
    return 0;
}

Compilation message (stderr)

sculpture.cpp: In function 'int main()':
sculpture.cpp:54:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n,&a,&b);
                             ^
sculpture.cpp:56:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&arr[i]);
                            ^

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