Submission #487242

#	Time	Username	Problem	Language	Result	Execution time	Memory
487242		MohamedAliSaidane	Secret (JOI14_secret)	C++14	100 / 100	437 ms	8676 KiB

secret

#include <bits/stdc++.h>
#include "secret.h"
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<ld,ld> pld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pii> vpi;
typedef vector<pll> vpl;
typedef vector<pld> vpd;

#define pb push_back
#define popb pop_back
#define all(v) (v).begin(),(v).end()
#define ff first
#define ss second

const ll MOD = 1e9 + 7;
const ll INF = 1e18;

/////// SOLUTION \\\\\\\

const int MAX_N = 1111;
int a[1111];
int n;
int range[MAX_N][MAX_N];
void build(int l, int r)
{
    if(r - l  < 2)
        return ;
    int m = (l+r)/2;
    for(int i = m-1; i >=l; i--)
    {
        if(range[i][m] != -1) continue;
        range[i][m] = Secret(range[i][i],range[i+1][m]);
    }
    for(int i = m +2; i <=r; i ++)
    {
        if(range[m+1][i] != -1) continue;
        range[m+1][i] = Secret(range[m+1][i-1],range[i][i]);
    }
    build(l,m-1);
    build(m+1,r);
}
void Init(int N, int A[])
{
    n = N;
    for(int i= 0; i <n; i ++)
        a[i] = A[i];
    for(int i = 0; i <n; i ++)
        for(int j=  0; j <n; j ++)
            range[i][j] = -1;
    for(int i=  0; i <n; i ++)
        range[i][i] = a[i];
    build(0,n-1);

}
int Query(int l, int r)
{
    if(range[l][r] != -1) return range[l][r];
    for(int i = l; i <r; i++)
    {
        if(range[l][i] != -1 && range[i+1][r] != -1)
            return range[l][r]= Secret(range[l][i],range[i+1][r]);
    }
}

/*int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    int tt;
    while(tt--)
    {
        solve();
    }
}*/

Compilation message (stderr)

secret.cpp:26:1: warning: multi-line comment [-Wcomment]
   26 | /////// SOLUTION \\\\\\\
      | ^
secret.cpp: In function 'int Query(int, int)':
secret.cpp:71:1: warning: control reaches end of non-void function [-Wreturn-type]
   71 | }
      | ^

• Subtask 1: 100 / 100