Submission #1291534

#	Time	Username	Problem	Language	Result	Execution time	Memory
1291534		erering	Secret (JOI14_secret)	C++20	0 / 100	636 ms	589824 KiB

secret

#include <bits/stdc++.h>
#include "secret.h"
using namespace std;
map<pair<int,int>,int> mp;
int a[1001];
void solve(int l,int r){
    if(l==r)return;
    int mid=(l+r)/2;
    for(int i=mid-1;i>=l;i--){
        mp[{i,mid}]=Secret(a[i],mp[{i+1,mid}]);
    }
    for(int i=mid+2;i<=r;i++){
        mp[{mid+1,i}]=Secret(a[i],mp[{mid+1,i-1}]);
    }
    solve(l,mid-1);
    solve(mid+1,r);
}
void Init(int N, int A[]) {
    for(int i=0;i<N;i++){
        a[i]=A[i];
        mp[{i,i}]=a[i];
    }
    solve(0,N-1);
}

int Query(int L, int R) {
    if(mp[{L,R}])return mp[{L,R}];
    for(int i=L;i<R;i++){
        if(mp[{L,i}] && mp[{i+1,R}])return Secret(mp[{L,i}],mp[{i+1,R}]);
    }
    return -1;
}

• Subtask 1: 0 / 100