Submission #1272019

#	Time	Username	Problem	Language	Result	Execution time	Memory
1272019		ezzzay	Secret (JOI14_secret)	C++20	0 / 100	336 ms	12368 KiB

secret

#include "secret.h"
#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
vector<int>a;
int n;
int st[5000];
int dp[5000][5000];
void build(int L, int R){
    if(L==R){
        dp[L][R]=a[L];
        return;
    }
    int mid=(L+R)/2;
    for(int i=mid-1;i>=L;i--){
        dp[mid][i] = Secret(dp[mid][i+1],a[i]);
        dp[i][mid]=dp[mid][i];
    }
    
    for(int i=mid+1;i<=R;i++){
        dp[mid][i] = Secret(dp[mid][i-1],a[i]);
        dp[i][mid]=dp[mid][i];
    }
    build(L,mid);
    build(mid+1,R);
}
void Init(int N, int A[]) {
    n=N;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++)dp[i][j]=-1;
    }
    a.clear();
    a.pb(0);
    for(int i=0;i<N;i++)a.push_back(A[i]);
    build(1,n);
}

int Query(int L, int R) {
    L++,R++;
    if(dp[L][R]!=-1)return dp[L][R];
    for(int i=1;i<=n;i++){
        if(dp[L][i]!=-1 and dp[i+1][R]!=-1){
            return Secret(dp[L][i],dp[i+1][R]);
        }
    }
}

Compilation message (stderr)

secret.cpp: In function 'int Query(int, int)':
secret.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
   48 | }
      | ^

• Subtask 1: 0 / 100